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Amherst, SD Weather Forecast
Amherst, SD Weather Forecast Date: 921 PM CDT Sat Sep 12 2026
The area/counties/county of: Marshall, including the city of Britton.or toggle through each period.
Tonight... Mostly cloudy. A slight chance of showers after midnight. Lows in the upper 40s. Northwest winds 10 to 15 mph with gusts up to 25 mph, becoming north around 5 mph after midnight. Chance of rain 20%.
Sunday... Mostly cloudy with a slight chance of showers in the morning, then mostly sunny in the afternoon. Highs in the mid 60s. Northeast winds around 5 mph. Chance of rain 20%.
Sunday Night... Mostly clear in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the lower 50s. East winds 5 to 10 mph with gusts up to 20 mph, increasing to southeast 15 to 20 mph with gusts up to 35 mph after midnight. Chance of rain 50%.
Monday... A slight chance of thunderstorms. Showers, breezy with highs in the upper 60s. South winds 15 to 25 mph with gusts up to 45 mph. Chance of rain near 100%.
Monday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 40s. West winds 15 to 20 mph with gusts up to 30 mph.
Tuesday... Mostly clear. Highs in the mid 60s. Lows in the upper 40s.
Tuesday Night... Mostly clear. Highs in the mid 60s. Lows in the upper 40s.
Wednesday... Mostly cloudy. A 20% chance of showers. Highs in the mid 60s. Lows in the upper 40s.
Wednesday Night... Mostly cloudy. A 20% chance of showers. Highs in the mid 60s. Lows in the upper 40s.
Thursday... Partly sunny. Highs in the upper 60s.
Thursday Night... Partly cloudy with a 20% chance of showers. Lows in the lower 50s. Highs in the upper 60s.
Friday... Partly cloudy with a 20% chance of showers. Lows in the lower 50s. Highs in the upper 60s.
POP = Probability of Precipitation
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