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Johnson Lake, MT Weather Forecast
Johnson Lake, MT Weather Forecast Date: 351 AM MDT Fri Oct 23 2026
The area/counties/county of: Sheridan, including the cities of: Plentywood and Medicine Lake.or toggle through each period.
Today... Mostly cloudy. Highs in the lower 70s. Southeast wind 10 to 15 mph.
Tonight... Rain likely. A slight chance of snow after midnight. Windy with lows in the lower 30s. Northwest wind 25 to 30 mph with gusts up to 45 mph. Chance of precipitation 70%.
Saturday... Sunny, windy and much cooler with highs in the mid 40s. West wind 25 to 30 mph with gusts up to 40 mph, Decreasing to around 20 mph in the afternoon.
Saturday Night... Partly cloudy in the evening, then clearing. Lows in the mid 20s. West wind 5 to 10 mph, becoming northwest after midnight.
Sunday... Sunny. Highs in the lower 40s. Northeast wind 5 to 10 mph.
Sunday Night... Partly cloudy. Lows in the mid 20s.
Monday... Partly sunny. Highs in the lower 40s.
Monday Night... A slight chance of snow. Lows in the mid 20s.
Tuesday... A chance of snow with a slight chance of rain. Highs in the lower 40s.
Tuesday Night... A chance of rain. Lows in the upper 20s.
Wednesday... A chance of rain and snow. Highs in the lower 40s.
Wednesday Night... Mostly cloudy. Lows in the mid 20s. Highs around 40.
POP = Probability of Precipitation
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