Weather WorldRacetrack Lake, MT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Racetrack Lake Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 |  |  |  |  |  |  | | | | | |
| Mostly Clear | Chance of Rain | Chance of T-Storm | Chance of T-Storm | Mostly Cloudy | Chance of Rain | Chance of Rain | Chance of T-Storm | Chance of T-Storm | Chance of Rain | Chance of T-Storm | Chance of Rain |
| Lo: 40°FLo: 4°C | Hi: 76°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 66°FHi: 19°C | Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C | Lo: 36°FLo: 2°C | Hi: 66°FHi: 19°C | Lo: 36°FLo: 2°C | Hi: 70°FHi: 21°C | Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C |
| POP: 20% | POP: 70% | POP: 70% | POP: 40% | POP: 40% | POP: 40% | POP: 40% | POP: 40% | POP: 40% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1223 PM MDT Mon Aug 31 2026 
Racetrack Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Racetrack Lake Weather Map
Racetrack Lake Quick Facts
Racetrack Lake Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1223 PM MDT Mon Aug 31 2026
Discussion
...
KEY MESSAGES:- Widespread showers and thunderstorms Tuesday afternoon and evening, with gusty outflow winds of 30-50 mph, moderate to heavy rainfall, and lightning, strongest storms south of Highway 200.
- Another round of storms Wednesday capable of 30-50 mph outflows and heavy rain rates up to 0.5 inches per hour.
- Persistent active pattern late week into the weekend under southwesterly flow, with a 15% chance of a tropical moisture tap on Sunday.
Today through Tuesday Night: A ridge o...