Long Valley, SD 7-Day Weather Forecast
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Long Valley Weather Forecast


Long Valley, SD Weather Forecast Date: 203 PM MDT Sun Sep 13 2026
Weather forecast for Long Valley, SD
| Late Today Hi: 70°FHi: 21°C Lo: 55°F Lo: 13°C |
Late This Afternoon... Breezy. Partly cloudy. Near steady temperature around 70. Southeast winds 20 to 30 mph with gusts up to 40 mph. |
| Mon Hi: 79°FHi: 26°C Lo: 49°F Lo: 9°C |
Monday... Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then mostly sunny in the afternoon. Breezy with highs in the upper 70s. South winds 20 to 30 mph, becoming northwest in the afternoon. Gusts up to 45 mph. Chance of rain 50%. |
| Tue Hi: 71°FHi: 22°C Lo: 51°F Lo: 11°C |
Tuesday... Mostly sunny. Highs in the lower 70s. North winds 5 to 10 mph with gusts up to 20 mph. |
| Wed Hi: 80°FHi: 27°C Lo: 55°F Lo: 13°C |
Wednesday... Partly cloudy. A slight chance of showers in the morning. Breezy with highs around 80. Chance of rain 20%. |
| Thu Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
Thursday... Mostly cloudy with a slight chance of showers in the morning, then partly cloudy with a chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 30%. |
| Fri Hi: 79°FHi: 26°C Lo: 51°F Lo: 11°C |
Friday... Becoming partly cloudy. A chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 40%. |
| Sat Hi: 71°FHi: 22°C Lo: 50°F Lo: 10°C |
Saturday... Partly cloudy. A chance of showers in the morning, then a slight chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 30%. |
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