Weather WorldJohnson Lake, MT 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Johnson Lake, MT Weather Forecast
Johnson Lake, MT Weather Forecast Date: 101 AM MDT Fri Aug 21 2026
The area/counties/county of: Sheridan, including the cities of: Plentywood and Medicine Lake.or toggle through each period.
Rest of Tonight... Partly cloudy with a 20% chance of showers. Near steady temperature in the upper 50s. Northeast wind around 5 mph.
Friday... Partly sunny with a chance of showers in the morning, then sunny in the afternoon. Highs around 80. North wind 5 to 10 mph. Chance of rain 30%.
Friday Night... Mostly clear. Lows in the lower 50s. Northeast wind 5 to 10 mph.
Saturday... Mostly sunny. Highs in the lower 80s. Southeast wind 10 to 15 mph.
Saturday Night... A slight chance of showers after midnight. Lows in the lower 60s. Southeast wind around 15 mph. Chance of rain 20%.
Sunday... A chance of showers with a slight chance of thunderstorms. Highs in the mid 80s.
Sunday Night... Showers likely with a chance of thunderstorms. Lows around 60.
Monday... Mostly clear and breezy. Highs in the mid 80s. Lows in the mid 50s.
Monday Night... Mostly clear and breezy. Highs in the mid 80s. Lows in the mid 50s.
Tuesday... Mostly clear. Highs in the upper 70s. Lows around 50.
Wednesday... Mostly clear. Highs in the upper 70s. Lows around 50.
Wednesday Night... A slight chance of showers. Lows in the mid 50s. Highs in the upper 70s.
POP = Probability of Precipitation
Johnson Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...