Sinai, SD Weather Forecast & Current Conditions

Night: Mostly clear. Lows in the mid 40s. Northwest winds 5 to 10 mph, becoming southeast after midnight.

Day: Mostly sunny. Highs in the lower 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph, becoming south around 20 mph with gusts up to 35 mph in the afternoon.

Night: Mostly clear. Lows in the lower 50s. South winds 15 to 20 mph with gusts up to 35 mph.

Day: Sunny. Highs in the mid 70s. Southwest winds 5 to 10 mph, becoming northwest in the afternoon. Gusts up to 25 mph.

Night: Mostly clear. Lows around 50. Northwest winds around 5 mph.

Day: Sunny. Highs around 70.

Night: Partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Mostly clear in the evening, then becoming partly cloudy. Not as cool with lows in the upper 50s.

Day: Sunny, breezy with highs in the mid 70s.

Night: Mostly clear and breezy. Lows in the upper 50s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Clear this evening, then becoming partly cloudy. Lows in the mid 40s. Northwest winds around 5 mph, becoming southeast after midnight.

Day: Sunny, breezy with highs in the lower 70s. South winds 15 to 25 mph with gusts up to 35 mph.

Night: Mostly clear. Lows in the mid 50s. South winds 15 to 20 mph with gusts up to 35 mph.

Day: Sunny. Highs in the mid 70s. West winds 5 to 10 mph, becoming northwest with gusts up to 20 mph in the afternoon.

Night: Mostly clear. Lows in the lower 50s. Northwest winds around 5 mph.

Day: Sunny. Highs in the lower 70s.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Mostly clear and breezy. Lows in the upper 50s.

Day: Sunny, breezy with highs in the mid 70s.

Night: Mostly clear and breezy. Lows in the upper 50s.

Day: Mostly sunny. Highs around 70.

Night: Clear this evening, then becoming partly cloudy. Lows in the upper 40s. North winds around 5 mph, becoming southeast after midnight.

Day: Sunny, breezy with highs in the lower 70s. South winds 15 to 25 mph with gusts up to 35 mph.

Night: Mostly clear. Lows in the mid 50s. South winds 15 to 20 mph with gusts up to 35 mph.

Day: Sunny. Highs in the mid 70s. West winds 5 to 10 mph, becoming northwest in the afternoon.

Night: Mostly clear. Lows around 50. Northwest winds around 5 mph.

Day: Sunny. Highs around 70.

Night: Partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Partly cloudy. Lows in the upper 40s.

Day: Sunny. Highs in the upper 60s.

Night: Mostly clear and breezy. Lows in the upper 50s.

Day: Sunny, breezy with highs in the mid 70s.

Night: Mostly clear in the evening, then becoming partly cloudy. Breezy with lows in the upper 50s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Mostly clear. Lows in the mid 40s. Northwest winds 5 to 10 mph, becoming southeast after midnight.

Day: Sunny. Highs in the lower 70s. South winds 15 to 20 mph. Gusts up to 35 mph in the afternoon.

Night: Mostly clear. Lows in the lower 50s. South winds 15 to 20 mph with gusts up to 35 mph.

Day: Sunny. Highs in the mid 70s. Southwest winds 5 to 10 mph, becoming northwest in the afternoon.

Night: Mostly clear. Lows around 50. Northwest winds around 5 mph.

Day: Sunny. Highs in the lower 70s.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Mostly clear. Lows in the mid 50s.

Day: Sunny, breezy with highs in the mid 70s.

Night: Mostly clear and breezy. Lows in the upper 50s.

Day: Mostly sunny. Highs around 70.

Night: Clear this evening, then becoming partly cloudy. Lows in the lower 40s. Northwest winds around 5 mph, becoming southeast after midnight.

Day: Mostly sunny and breezy. Highs in the lower 70s. South winds 15 to 25 mph with gusts up to 35 mph.

Night: Clear, breezy and not as cool with lows in the mid 50s. South winds 15 to 25 mph with gusts up to 35 mph.

Day: Mostly sunny. Highs in the mid 70s. West winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly clear. Lows around 50. Northwest winds around 5 mph.

Day: Mostly sunny. Highs around 70.

Night: Partly cloudy. Lows in the upper 40s. Highs in the upper 60s.

Night: Partly cloudy. Lows in the upper 40s. Highs in the upper 60s.

Night: Mostly clear. Highs in the upper 60s. Lows in the upper 50s.

Night: Mostly clear and breezy. Highs in the mid 70s. Lows in the upper 50s.

Day: Partly sunny with a 20 percent chance of showers. Highs in the upper 60s.

Night: Mostly clear. Lows in the lower 40s. Northwest winds 5 to 10 mph, becoming south after midnight.

Day: Partly sunny and breezy. Highs in the lower 70s. South winds 15 to 25 mph with gusts up to 35 mph.

Night: Clear, breezy and not as cool with lows in the mid 50s. Southwest winds 15 to 25 mph with gusts up to 40 mph.

Day: Mostly sunny. Highs in the mid 70s. West winds 15 to 20 mph with gusts up to 30 mph, becoming northwest 5 to 10 mph with gusts up to 20 mph in the afternoon.

Night: Mostly clear. Lows in the lower 50s. Northwest winds around 5 mph.

Night: Partly cloudy. Highs around 70. Lows in the upper 40s.

Day: Partly sunny. Highs in the upper 60s.

Night: Partly cloudy. Lows in the upper 40s.

Night: Mostly clear and breezy. Highs in the upper 60s. Lows in the mid 50s.

Night: Mostly clear and windy. Highs in the mid 70s. Lows in the upper 50s.

Day: Partly sunny with a 20 percent chance of showers. Breezy with highs in the upper 60s.

Night: Clear this evening, then becoming partly cloudy. Not as cool with lows in the upper 40s. East winds 5 to 10 mph.

Day: Sunny, breezy with highs in the mid 70s. South winds 15 to 25 mph with gusts up to 35 mph.

Night: Mostly clear. Lows in the mid 50s. South winds 15 to 20 mph with gusts up to 35 mph.

Day: Sunny. Highs in the upper 70s. West winds 5 to 10 mph, becoming northwest in the afternoon.

Night: Mostly clear. Lows around 50. North winds around 5 mph.

Day: Sunny. Highs in the lower 70s.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows around 50.

Day: Mostly sunny. Highs in the upper 60s.

Night: Partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the lower 70s.

Night: Mostly clear. Lows in the upper 50s.

Day: Sunny, breezy with highs in the upper 70s.

Night: Mostly clear. Lows around 60.

Day: Mostly sunny. Highs in the lower 70s.

Night: Mostly clear. Lows in the mid 40s. Northwest winds around 5 mph, becoming east after midnight.

Day: Sunny. Highs in the lower 70s. South winds 15 to 20 mph. Gusts up to 35 mph in the afternoon.

Night: Mostly clear. Lows in the mid 50s. South winds 15 to 20 mph with gusts up to 30 mph.

Day: Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph, becoming northwest in the afternoon.

Night: Mostly clear. Lows in the lower 50s. Northwest winds around 5 mph.

Day: Sunny. Highs in the lower 70s.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows around 50.

Day: Mostly sunny. Highs in the upper 60s.

Night: Partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs around 70.

Night: Mostly clear. Lows in the upper 50s.

Day: Sunny, breezy with highs in the mid 70s.

Night: Mostly clear. Lows around 60.

Day: Mostly sunny. Highs in the lower 70s.

Night: Mostly clear. Lows in the mid 40s. Northwest winds 5 to 10 mph, becoming south after midnight.

Day: Mostly sunny. Highs in the lower 70s. South winds 15 to 20 mph with gusts up to 30 mph.

Night: Clear, breezy and not as cool with lows in the mid 50s. Southwest winds 15 to 25 mph with gusts up to 35 mph.

Day: Sunny. Highs in the mid 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph, becoming northwest around 10 mph with gusts up to 20 mph in the afternoon.

Night: Mostly clear. Lows in the lower 50s. Northwest winds around 5 mph.

Day: Sunny. Highs around 70.

Night: Partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Partly cloudy. Lows in the upper 40s.

Day: Sunny. Highs in the upper 60s.

Night: Mostly clear in the evening, then becoming partly cloudy. Breezy with lows in the mid 50s.

Day: Sunny, windy with highs in the mid 70s.

Night: Mostly clear and breezy. Lows in the upper 50s.

Day: Mostly sunny and breezy. Highs in the upper 60s.

Night: Clear this evening, then becoming partly cloudy. Lows in the upper 40s. Northeast winds around 5 mph, becoming southeast after midnight.

Day: Sunny, breezy with highs in the mid 70s. South winds 15 to 25 mph with gusts up to 35 mph.

Night: Mostly clear. Lows in the mid 50s. South winds 15 to 20 mph. Gusts up to 35 mph in the evening.

Day: Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph, becoming northwest in the afternoon.

Night: Mostly clear. Lows in the lower 50s. North winds around 5 mph.

Day: Sunny. Highs in the lower 70s.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s.

Day: Mostly sunny. Highs around 70.

Night: Partly cloudy. Lows around 50.

Day: Mostly sunny. Highs in the lower 70s.

Night: Mostly clear. Lows in the upper 50s.

Day: Sunny, breezy with highs in the upper 70s.

Night: Mostly clear. Lows around 60.

Day: Mostly sunny. Highs in the lower 70s.

Night: Clear this evening, then becoming partly cloudy. Lows in the mid 40s. Southeast winds 5 to 10 mph.

Day: Mostly sunny and breezy. Highs in the lower 70s. South winds 20 to 25 mph with gusts up to 40 mph.

Night: Mostly clear and breezy. Lows in the lower 50s. South winds 15 to 25 mph. Gusts up to 40 mph in the evening.

Day: Mostly sunny. Highs in the mid 70s. Northwest winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly clear. Lows around 50. North winds around 5 mph.

Day: Mostly sunny. Highs around 70.

Night: Partly cloudy. Lows in the upper 40s. Highs in the upper 60s.

Night: Partly cloudy. Lows in the upper 40s. Highs in the upper 60s.

Night: Mostly clear and breezy. Highs in the upper 60s. Lows in the upper 50s.

Night: Mostly clear and breezy. Highs in the mid 70s. Lows in the upper 50s.

Day: Partly sunny. A slight chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 20 percent.

Night: Mostly clear. Lows in the lower 40s. North winds 5 to 10 mph, becoming southeast after midnight.

Day: Partly sunny and breezy. Highs in the lower 70s. South winds 15 to 25 mph with gusts up to 35 mph.

Night: Mostly clear and breezy. Not as cool with lows in the mid 50s. South winds 15 to 25 mph with gusts up to 35 mph.

Day: Mostly sunny. Highs in the mid 70s. Northwest winds 5 to 10 mph with gusts up to 25 mph.

Night: Mostly clear. Lows around 50. Northwest winds around 5 mph.

Day: Mostly sunny. Highs around 70.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s.

Day: Partly sunny. Highs in the upper 60s.

Night: Partly cloudy. Lows in the upper 40s. Highs in the upper 60s.

Night: Mostly clear and breezy. Lows in the upper 50s. Highs in the mid 70s.

Night: Mostly clear and breezy. Lows in the upper 50s. Highs in the mid 70s.

Day: Partly sunny. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 30 percent.

Night: Mostly clear. Lows in the mid 40s. Northwest winds around 5 mph, becoming southeast after midnight.

Day: Sunny. Highs around 70. South winds 15 to 20 mph.

Night: Clear. Lows in the lower 50s. South winds 15 to 20 mph with gusts up to 30 mph.

Day: Sunny. Highs in the mid 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph, becoming northwest 5 to 10 mph in the afternoon.

Night: Mostly clear. Lows around 50. Northwest winds around 5 mph.

Day: Sunny. Highs around 70.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s.

Day: Sunny, breezy with highs in the mid 70s.

Night: Mostly clear and breezy. Lows in the upper 50s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Mostly clear this evening, then becoming partly cloudy. Not as cool with lows in the upper 40s. Southeast winds 5 to 10 mph.

Day: Sunny, breezy with highs in the upper 70s. South winds 15 to 25 mph with gusts up to 35 mph.

Night: Mostly clear. Lows in the mid 50s. South winds 15 to 20 mph. Gusts up to 35 mph in the evening.

Day: Sunny. Highs in the upper 70s. Northwest winds 5 to 10 mph.

Night: Mostly clear. Lows in the lower 50s. Northwest winds around 5 mph.

Day: Sunny. Highs in the lower 70s.

Night: Partly cloudy. Lows around 50.

Day: Mostly sunny. Highs in the lower 70s.

Night: Partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the lower 70s.

Night: Mostly clear. Not as cool with lows in the upper 50s.

Day: Sunny, breezy with highs around 80.

Night: Mostly clear. Lows around 60.

Day: Mostly sunny. Highs in the lower 70s.

Night: Mostly clear. Lows in the upper 40s. East winds 5 to 10 mph.

Day: Sunny, breezy with highs in the upper 70s. South winds 15 to 25 mph with gusts up to 35 mph.

Night: Mostly clear. Lows in the mid 50s. South winds 15 to 20 mph. Gusts up to 35 mph in the evening.

Day: Sunny. Highs in the upper 70s. West winds around 5 mph, becoming northwest in the afternoon.

Night: Mostly clear. Lows in the lower 50s. Northwest winds around 5 mph.

Day: Sunny. Highs in the mid 70s.

Night: Partly cloudy. Lows in the lower 50s.

Day: Mostly sunny. Highs in the lower 70s.

Night: Partly cloudy. Lows in the lower 50s.

Day: Mostly sunny. Highs in the lower 70s.

Night: Mostly clear. Lows around 60.

Day: Sunny, breezy with highs in the upper 70s.

Night: Mostly clear. Lows around 60.

Day: Mostly sunny. Highs in the lower 70s.

Night: Mostly clear this evening, then becoming partly cloudy. Lows in the upper 40s. Southeast winds 5 to 10 mph.

Day: Sunny, breezy with highs in the upper 70s. South winds 15 to 25 mph with gusts up to 35 mph.

Night: Mostly clear. Lows in the mid 50s. South winds 15 to 20 mph. Gusts up to 35 mph in the evening.

Day: Sunny. Highs in the upper 70s. Northwest winds 5 to 10 mph.

Night: Mostly clear. Lows around 50. Northwest winds around 5 mph.

Day: Mostly sunny. Highs in the lower 70s.

Night: Partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs around 70.

Night: Partly cloudy. Lows in the upper 40s.

Day: Sunny. Highs in the lower 70s.

Night: Mostly clear in the evening, then becoming partly cloudy. Not as cool with lows in the upper 50s.

Day: Sunny, breezy with highs in the upper 70s.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s.

Day: Mostly sunny. Not as warm with highs in the upper 60s.

Night: Clear. Lows in the mid 40s. Northwest winds 5 to 10 mph, becoming southwest after midnight.

Day: Mostly sunny. Highs in the lower 70s. South winds 5 to 10 mph with gusts up to 20 mph, increasing to 15 to 20 mph with gusts up to 30 mph in the afternoon.

Night: Clear. Not as cool with lows in the upper 50s. South winds 15 to 20 mph with gusts up to 35 mph.

Day: Sunny. Highs in the upper 70s. Southwest winds 15 to 20 mph, becoming northwest around 10 mph in the afternoon.

Night: Mostly clear. Lows in the lower 50s. Northwest winds around 5 mph.

Day: Sunny. Highs in the lower 70s.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Mostly clear and breezy. Lows in the upper 50s.

Day: Sunny, windy with highs in the mid 70s.

Night: Mostly clear and breezy. Lows around 60.

Day: Mostly sunny and breezy. Highs in the lower 70s.

Night: Clear. Lows in the lower 40s. West winds up to 5 mph.

Day: Mostly sunny. Highs in the lower 70s. Southeast winds up to 10 mph increasing to south 10 to 20 mph in the afternoon.

Night: Warmer, clear. Lows in the upper 50s. South winds 10 to 15 mph with gusts to around 35 mph.

Day: Sunny. Highs in the upper 70s. Southwest winds 5 to 15 mph with gusts to around 30 mph shifting to the northwest 5 to 10 mph in the afternoon.

Night: Clear. Lows around 50. Northwest winds up to 5 mph.

Day: Mostly sunny. Highs in the lower 70s.

Night: Partly cloudy. Lows in the upper 40s.

Day: Partly sunny. Highs in the upper 60s.

Night: Partly cloudy. Lows in the mid 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Mostly clear. Lows in the mid 50s.

Day: Windy, sunny. Highs in the upper 70s.

Night: Breezy. Mostly clear. Lows around 60.

Day: Mostly sunny. Highs in the lower 70s.

Night: Mostly clear. Lows in the upper 40s. Northeast winds around 5 mph, becoming southeast after midnight.

Day: Sunny. Highs in the mid 70s. South winds 15 to 20 mph. Gusts up to 35 mph in the afternoon.

Night: Mostly clear. Lows in the mid 50s. South winds 15 to 20 mph with gusts up to 30 mph.

Day: Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph, becoming northwest in the afternoon.

Night: Mostly clear. Lows in the lower 50s. Northwest winds around 5 mph.

Day: Sunny. Highs in the lower 70s.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s.

Day: Mostly sunny. Highs around 70.

Night: Partly cloudy. Lows in the lower 50s.

Day: Mostly sunny. Highs in the lower 70s.

Night: Mostly clear. Lows in the upper 50s.

Day: Sunny, breezy with highs in the upper 70s.

Night: Mostly clear. Lows in the lower 60s.

Day: Mostly sunny. Highs in the lower 70s.

Night: Mostly clear. Lows in the mid 40s. Northwest winds 5 to 10 mph, becoming east after midnight.

Day: Sunny. Highs in the lower 70s. South winds 10 to 15 mph. Gusts up to 30 mph in the afternoon.

Night: Clear. Not as cool with lows in the mid 50s. South winds 10 to 15 mph with gusts up to 30 mph.

Day: Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph, becoming northwest in the afternoon.

Night: Mostly clear. Lows around 50. Northwest winds around 5 mph.

Day: Sunny. Highs in the lower 70s.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Partly cloudy. Lows in the upper 40s.

Day: Mostly sunny. Highs in the upper 60s.

Night: Mostly clear. Lows in the upper 50s.

Day: Sunny, breezy with highs in the mid 70s.

Night: Mostly clear. Lows around 60.

Day: Mostly sunny. Highs in the lower 70s.