Weather WorldJohnson Lake, MT 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Johnson Lake Weather Forecast
Johnson Lake, MT Weather Forecast Date: 351 PM MDT Wed Oct 21 2026
Weather forecast for Johnson Lake, MT
Tonight Lo: 41°F Lo: 5°C |
Tonight... Mostly clear. Lows in the lower 40s. Southeast wind 10 to 15 mph. |
Thu Hi: 71°FHi: 22°C Lo: 45°F Lo: 7°C |
Thursday... Sunny. Highs in the lower 70s. South wind around 5 mph. |
Fri Hi: 71°FHi: 22°C Lo: 35°F Lo: 2°C |
Friday... Mostly cloudy in the morning, then a slight chance of rain in the afternoon. Highs in the lower 70s. East wind 10 to 15 mph. Chance of rain 20%. |
Sat Hi: 45°FHi: 7°C Lo: 25°F Lo: -4°C |
Saturday... Partly cloudy and windy. Highs in the mid 40s. Lows in the mid 20s. |
| Sun Hi: 45°FHi: 7°C Lo: 25°F Lo: -4°C |
Sunday... Partly cloudy and windy. Highs in the mid 40s. Lows in the mid 20s. |
| Mon Hi: 45°FHi: 7°C Lo: 25°F Lo: -4°C |
Monday... Partly cloudy and windy. Highs in the mid 40s. Lows in the mid 20s. |
| Mon Hi: 45°FHi: 7°C Lo: 29°F Lo: -2°C |
Monday... Partly cloudy and windy. Highs in the mid 40s. Lows in the mid 20s. |
Tue Hi: 49°FHi: 9°C Lo: 29°F Lo: -2°C |
Tuesday... A slight chance of rain and snow. Highs in the upper 40s. Lows in the upper 20s. |
Johnson Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...