Weather WorldSidney Lake, MT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Sidney Lake Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 | | | |  |  | | | | | | |
| Smoke | Smoke | Smoke | Smoke | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny |
| Lo: 46°FLo: 8°C | Hi: 85°FHi: 29°C | Lo: 50°FLo: 10°C | Hi: 86°FHi: 30°C | Lo: 50°FLo: 10°C | Hi: 86°FHi: 30°C | Lo: 50°FLo: 10°C | Hi: 85°FHi: 29°C | Lo: 46°FLo: 8°C | Hi: 85°FHi: 29°C | Lo: 50°FLo: 10°C | Hi: 85°FHi: 29°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 233 PM MDT Wed Aug 05 2026 
Sidney Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...