Weather WorldSidney Lake, MT 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Sidney Lake Weather Forecast
Sidney Lake, MT Weather Forecast Date: 1223 AM MDT Sun Oct 18 2026
Weather forecast for Sidney Lake, MT
Today Hi: 56°FHi: 13°C Lo: 35°F Lo: 2°C |
Today... Partly cloudy. Highs in the mid 50s to lower 60s. |
| Mon Hi: 60°FHi: 16°C Lo: 35°F Lo: 2°C |
Monday... Partly cloudy. Highs in the upper 50s to mid 60s. South winds to 15 mph. |
| Tue Hi: 60°FHi: 16°C Lo: 35°F Lo: 2°C |
Tuesday... Partly cloudy. Highs in the upper 50s to mid 60s. |
Wed Hi: 60°FHi: 16°C Lo: 36°F Lo: 2°C |
Wednesday... Mostly sunny. Highs in the upper 50s to mid 60s. |
Thu Hi: 60°FHi: 16°C Lo: 35°F Lo: 2°C |
Thursday... Partly cloudy with a 40% chance of rain. Highs in the upper 50s to mid 60s. |
Fri Hi: 45°FHi: 7°C Lo: 25°F Lo: -4°C |
Friday... Rain and snow likely in the morning, then a chance of rain and snow in the afternoon. Chance of precipitation 70%. Cooler. Highs in the 40s. |
| Sat Hi: 40°FHi: 4°C |
Saturday... Partly cloudy. Highs in the upper 30s to mid 40s. |
Sidney Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...