Main Line Trail, MT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Main Line Trail Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY |
| Snow | Partly Sunny | Mostly Cloudy | Rain and Snow | Chance of Snow | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 29°FLo: -2°C | Hi: 45°FHi: 7°C | Lo: 33°FLo: 1°C | Hi: 39°FHi: 4°C | Lo: 31°FLo: -1°C | Hi: 41°FHi: 5°C Lo: 29°FLo: -2°C | Hi: 41°FHi: 5°C Lo: 29°FLo: -2°C | Hi: 45°FHi: 7°C Lo: 30°FLo: -1°C | Hi: 45°FHi: 7°C Lo: 30°FLo: -1°C | Hi: 44°FHi: 7°C Lo: 31°FLo: -1°C | Hi: 44°FHi: 7°C Lo: 31°FLo: -1°C | Hi: 44°FHi: 7°C Lo: 31°FLo: -1°C |
| POP: 20% | POP: 80% | POP: 80% |
POP = Probability of Precipitation.
Weather Outlook Updated: 336 PM MDT Fri Oct 30 2026 

Main Line Trail Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Main Line Trail Weather Map
Main Line Trail Quick Facts
Main Line Trail Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 522 PM MDT Fri Oct 30 2026
Key Messages
- Areas of fog will redevelop across north-central MT tonight and may be locally dense with low visibility and some patchy icing of elevated surfaces.
- A Pacific weather system brings more widespread precipitation by Sunday with initially high snow levels eventually lowering to mountain passes late Sunday and Sunday night.
- Temperatures trend closer to average early next week.
Discussion
... /Issued 151 PM MDT Fri Oct 30 2026/- Meteorological Overview:
Low clouds/stratus have spread into som...
Weather World