Weather WorldSplit Rock Lake, MT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Split Rock Lake Weather Forecast
| REST OF TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  |  |  |  | | | | |  |  | |
| Partly Sunny | Chance of T-Storm | Chance of T-Storm | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Sunny |
| Hi: 89°FHi: 32°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Hi: 81°FHi: 27°C Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C Lo: 55°FLo: 13°C | Hi: 89°FHi: 32°C Lo: 55°FLo: 13°C | Hi: 89°FHi: 32°C Lo: 55°FLo: 13°C | Hi: 85°FHi: 29°C Lo: 51°FLo: 11°C | Hi: 85°FHi: 29°C Lo: 51°FLo: 11°C | Hi: 80°FHi: 27°C |
| POP: 20% | POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1232 PM MDT Sat Aug 22 2026 
Split Rock Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Split Rock Lake Weather Map
Split Rock Lake Quick Facts
Split Rock Lake Forecast Discussion
Issued: 1243 PM MDT Sat Aug 22 2026
Key Messages
- Scattered showers and thunderstorms this afternoon capable of briefly heavy rainfall and gusty winds.
- Additional scattered showers and thunderstorms Sunday afternoon and early evening ahead of a cold front bringing drier and breezy conditions.
- Cooler in most areas Monday before temperatures trend closer to, if not above average by mid-week. A few showers and thunderstorms will be around most days next week, primarily across Southwest MT.
Discussion
...- Meteorological Overview:
High ampl...