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Splinter Lake Weather Forecast
| REST OF TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
 |  |  |  |  |  | |  | | | | |
| Chance of T-Storm | Chance of Showers | Increasing Clouds | Mostly Cloudy | Mostly Sunny | Partly Cloudy | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy |
| Hi: 65°FHi: 18°C | Lo: 30°FLo: -1°C | Hi: 69°FHi: 21°C | Lo: 39°FLo: 4°C | Hi: 69°FHi: 21°C | Lo: 29°FLo: -2°C | Hi: 59°FHi: 15°C | Lo: 25°FLo: -4°C | Hi: 61°FHi: 16°C | Lo: 29°FLo: -2°C | Hi: 65°FHi: 18°C | Lo: 29°FLo: -2°C |
| POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1236 PM MDT Fri Sep 11 2026 
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Issued: 1231 PM MDT Fri Sep 11 2026
Key Messages
- Cooler weather through the middle of next week, with the exception of a warmer day Sunday.
- Occasional chances of showers (mainly light) through Sunday night. Scattered thunderstorms possible in southeast Montana Sunday night, some possibly strong.
- Periodic low clouds and possible fog along the western foothills tonight through early Sunday.
- Breezy west winds Monday; gusts near 50 mph along the western foothills.
Discussion
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Through next Friday...
Satellite imagery shows a weak shortwa...