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Allen, SD Weather Forecast
Allen, SD Weather Forecast Date: 637 PM MDT Wed Sep 09 2026
The area/counties/county of: Bennett, including the cities of: Martin, Allen, Tuthill, and Harrington.or toggle through each period.
Tonight... Clear. Lows in the lower 50s. South winds 5 to 10 mph with gusts up to 20 mph.
Thursday... Sunny. Highs in the upper 80s. Southwest winds 10 to 20 mph with gusts up to 30 mph.
Thursday Night... Mostly clear and breezy. Lows in the lower 60s. South winds 10 to 15 mph, increasing to southwest 20 to 30 mph after midnight. Gusts up to 40 mph.
Friday... Partly cloudy in the morning, then clearing. Breezy with highs in the upper 80s. West winds 20 to 30 mph with gusts up to 45 mph.
Friday Night... Partly cloudy and breezy. Lows around 50. North winds 15 to 25 mph with gusts up to 35 mph, diminishing to 10 to 15 mph with gusts up to 25 mph after midnight.
Saturday... Partly cloudy in the morning, then becoming mostly sunny. Highs in the mid 70s.
Saturday Night... Partly cloudy with a slight chance of showers in the evening, then mostly cloudy with showers likely after midnight. Breezy with lows in the lower 50s. Chance of rain 60%.
Sunday... Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Breezy with highs around 80. Chance of rain 50%.
Sunday Night... Mostly cloudy with showers with a chance of thunderstorms in the evening, then partly cloudy with a chance of showers after midnight. Breezy with lows in the lower 50s. Chance of rain 80%.
Monday... Partly cloudy in the morning, then clearing. Breezy with highs in the lower 70s.
Monday Night... Clear. Lows in the mid 40s.
Tuesday... Mostly sunny in the morning, then becoming partly cloudy. Breezy with highs in the mid 70s.
Tuesday Night... Partly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Breezy with lows in the lower 50s. Chance of rain 40%.
POP = Probability of Precipitation
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