Weather WorldThunder Ski Trail, MT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Thunder Ski Trail Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 |  |  |  |  |  | | | | | | |
| Chance of T-Storm | Chance of T-Storm | Chance of Showers | Patchy Fog | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny |
| Lo: 45°FLo: 7°C | Hi: 56°FHi: 13°C | Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C |
| POP: 100% | POP: 90% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1222 PM MDT Fri Sep 18 2026 
Thunder Ski Trail Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Thunder Ski Trail Weather Map
Thunder Ski Trail Quick Facts
Thunder Ski Trail Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1228 PM MDT Fri Sep 18 2026
Discussion
...
KEY MESSAGES:- Thunderstorms this afternoon/evening with locally heavy rain, minor runoff concerns near burn scars and susceptible terrain.
- Steady precipitation tonight into Saturday south of I-90.
- Warming and drying trend Sunday into the first part of next week.
This afternoon through Saturday afternoon: Broad-scale lift and partial clearing north of an upper low over southwest Idaho will trigger rounds of showers and thunderstorms this afternoon and evening, primarily from I-90 sout...