Hi Line Trail, MT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Hi Line Trail Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
| Rain | Chance of T-Storm | Chance of T-Storm | Chance of Rain | Mostly Clear | Sunny | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Rain | Chance of Rain |
| Lo: 46°FLo: 8°C | Hi: 70°FHi: 21°C | Lo: 36°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 35°FLo: 2°C | Hi: 75°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 76°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C |
| POP: 40% | POP: 70% | POP: 50% | POP: 40% | POP: 30% | POP: 50% | POP: 40% | POP: 20% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1223 PM MDT Fri Aug 28 2026 

Hi Line Trail Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Hi Line Trail Weather Map
Hi Line Trail Quick Facts
Hi Line Trail Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1258 AM MDT Sat Aug 29 2026
Discussion
...
KEY MESSAGES:- Increasing showers and thunderstorms today.
- Temperatures cooling through the weekend, running 10 degrees below normal by Sunday.
- Brief warm up early next week, followed by another cool down.
Today-Sunday:
Beginning this morning, an upper-level low over Western Canada will elongate southward and close off over Washington state. Showers and isolated thunderstorms will develop early today, becoming more widespread through the afternoon as a cold front sweeps through the reg...
Weather World