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Fort Thompson, SD Weather Forecast
Fort Thompson, SD Weather Forecast Date: 221 PM CST Wed Nov 11 2026
The area/counties/county of: Buffalo, including the city of Fort Thompson.or toggle through each period.
This Afternoon... Mostly sunny. Cooler with highs in the mid 50s. North winds 10 to 15 mph.
Tonight... Mostly clear in the evening, then becoming mostly cloudy. Colder with lows around 30. Northeast winds 5 to 10 mph.
Thursday... Partly sunny. Much colder with highs around 40. Northeast winds 5 to 10 mph.
Thursday Night... Mostly clear. Lows in the mid 20s. East winds around 5 mph.
Friday... Mostly sunny. Highs in the lower 40s. Southeast winds 10 to 15 mph with gusts up to 25 mph.
Friday Night... Partly cloudy. Lows in the upper 20s.
Saturday... Mostly cloudy. Highs in the mid 40s. Lows in the lower 30s.
Sunday... Mostly cloudy. Highs in the mid 40s. Lows in the lower 30s.
Sunday Night... Partly cloudy. Lows in the mid 30s. Highs in the lower 50s.
Monday... Partly cloudy. Lows in the mid 30s. Highs in the lower 50s.
POP = Probability of Precipitation
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