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Johnson Dam, SD Weather Forecast
Johnson Dam, SD Weather Forecast Date: 937 PM MDT Mon Sep 28 2026
The area/counties/county of: Northern Perkins, including the cities of: Lemmon, Shadehill, Meadow, and Prairie City.or toggle through each period.
Rest of Tonight... Mostly cloudy. A chance of showers with a slight chance of thunderstorms this evening. Lows in the mid 50s. Northwest winds 5 to 10 mph. Chance of rain 40%.
Tuesday... Mostly cloudy in the morning, then clearing. Highs in the lower 70s. Northwest winds 5 to 10 mph.
Tuesday Night... Mostly clear. Lows around 50. Southwest winds 5 to 10 mph.
Wednesday... Sunny. Highs in the lower 70s. Northwest winds 10 to 20 mph with gusts up to 30 mph.
Wednesday Night... Partly cloudy in the evening, then clearing. Lows in the lower 40s. Northwest winds 10 to 20 mph, becoming north 5 to 10 mph after midnight.
Thursday... Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 60s.
Thursday Night... Partly cloudy. Lows in the mid 40s.
Friday... Partly cloudy in the morning, then clearing. Highs in the upper 60s.
Friday Night... Partly cloudy. A slight chance of showers after midnight. Lows in the upper 40s. Chance of rain 20%.
Saturday... Partly cloudy in the morning, then clearing. Highs in the mid 60s.
Saturday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s.
Sunday... Mostly sunny. Highs around 60.
Sunday Night... Partly cloudy. Lows in the lower 40s.
POP = Probability of Precipitation
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