Big Lake, MT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Big Lake Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | FRIDAY NIGHT | SATURDAY |
| Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Sunny | Partly Cloudy | Partly Cloudy | Mostly Sunny | Chance of Rain | Chance of Rain |
| Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 81°FHi: 27°C | Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C | Hi: 69°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 55°FHi: 13°C |
| POP: 20% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 336 AM MDT Sun Oct 04 2026 

Big Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Big Lake Weather Map
Big Lake Quick Facts
Big Lake Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 500 AM MDT Sun Oct 4 2026
Key Messages
- An extended period of warmth and dryness continues through much of the upcoming week with temperatures peaking on Monday.
- Elevated fire weather concerns develop early this week with breezy to locally windy conditions across portions of north-central MT Monday.
Discussion
... /Issued 322 AM MDT Sun Oct 4 2026/- Meteorological Overview:
Dry and mild conditions persist across the Northern Rockies and MT through much of the upcoming work week as large scale ridging remains centered across th...
Weather World