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Lacy, SD 7-Day Night Weather Forecast
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Lacy, SD Weather Forecast
Lacy, SD Weather Forecast Date: 621 AM CDT Mon Sep 07 2026
The area/counties/county of: Stanley, including the city of Fort Pierre.or toggle through each period.
Today... Mostly cloudy this morning, then becoming partly sunny. A 50% chance of thunderstorms. Hot with highs in the lower 90s. South winds 15 to 20 mph with gusts up to 30 mph.
Tonight... Partly cloudy. Lows in the mid 60s. South winds 10 to 15 mph, becoming west 15 to 20 mph after midnight.
Tuesday... Mostly sunny. Highs in the mid 80s. Northwest winds 10 to 15 mph with gusts up to 25 mph.
Tuesday Night... Mostly clear. Lows in the mid 50s. Northwest winds 5 to 10 mph, increasing to 15 to 20 mph after midnight.
Wednesday... Mostly sunny. Highs around 80. Northwest winds 15 to 20 mph with gusts up to 30 mph.
Wednesday Night... Mostly clear. Lows in the mid 50s.
Thursday... Sunny, warmer with highs around 90.
Thursday Night... Mostly clear. Lows in the upper 50s. Highs in the mid 80s.
Friday... Mostly clear. Lows in the upper 50s. Highs in the mid 80s.
Friday Night... Mostly clear. Lows in the mid 50s.
Saturday... Partly sunny. Highs in the upper 70s.
Saturday Night... Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms. A chance of showers after midnight. Lows around 50. Chance of rain 40%.
POP = Probability of Precipitation
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