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Johnson Lake, SD 7-Day Night Weather Forecast
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Johnson Lake, SD Weather Forecast
Johnson Lake, SD Weather Forecast Date: 239 PM CDT Tue Sep 22 2026
The area/counties/county of: Brookings, including the city of Brookings.or toggle through each period.
Tonight... Mostly cloudy. Lows in the upper 40s. Southeast winds around 10 mph with gusts up to 20 mph.
Wednesday... Mostly cloudy. Highs in the lower 60s. Southeast winds 15 to 20 mph with gusts up to 30 mph.
Wednesday Night... Cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then showers likely after midnight. Lows in the lower 50s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70%.
Thursday... Mostly cloudy. A chance of showers in the morning. Highs in the lower 60s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50%.
Thursday Night... Cloudy. A slight chance of showers after midnight. Lows in the mid 50s. South winds 5 to 10 mph. Chance of rain 20%.
Friday... Mostly cloudy. A chance of showers in the morning, then showers likely with a slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 70%.
Friday Night... Showers likely. Breezy with lows in the mid 50s. Chance of rain 70%.
Saturday... Cloudy, breezy with highs in the upper 60s.
Saturday Night... Mostly cloudy. Lows in the mid 50s.
Sunday... Partly sunny. Highs around 70.
Sunday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 50s.
Monday... Mostly cloudy with a chance of showers. Highs in the upper 60s. Chance of rain 40%.
Monday Night... Mostly cloudy with a chance of showers. Lows in the lower 50s. Chance of rain 50%.
POP = Probability of Precipitation
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