Weather WorldSlate Lake, MT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Slate Lake Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  |  | | |  |  |  | | | | |
| Partly Cloudy | Mostly Clear | Mostly Sunny | Mostly Clear | Partly Cloudy | Mostly Cloudy | Chance of Rain | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy |
| Hi: 66°FHi: 19°C | Lo: 40°FLo: 4°C | Hi: 65°FHi: 18°C | Lo: 36°FLo: 2°C | Hi: 65°FHi: 18°C | Lo: 36°FLo: 2°C | Hi: 66°FHi: 19°C | Lo: 36°FLo: 2°C | Hi: 66°FHi: 19°C | Lo: 40°FLo: 4°C | Hi: 70°FHi: 21°C | Lo: 40°FLo: 4°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1222 AM MDT Tue Sep 29 2026 
Slate Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Slate Lake Weather Map
Slate Lake Quick Facts
Slate Lake Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1259 AM MDT Tue Sep 29 2026
Discussion
...
KEY MESSAGES:- Increasing winds today, especially across northwest Montana and the higher terrain.
- Scattered rain showers tonight into early Wednesday then slight warming trend into the remainder of the week.
- High confidence in warmer and drier conditions this weekend through much of next week (and maybe beyond).
Clouds will increase across northwest Montana today as a weakening moisture plume settles along the Canadian border, generating light orographic showers focused primarily ove...