Weather WorldUpper Phyllis Lake, MT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Upper Phyllis Lake Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  | |  | | | | | |  |  | |
| Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Sunny | Partly Cloudy | Chance of Rain | Chance of Snow | Chance of Snow |
| Lo: 35°FLo: 2°C | Hi: 56°FHi: 13°C | Lo: 36°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 36°FLo: 2°C | Hi: 56°FHi: 13°C | Lo: 35°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 36°FLo: 2°C | Hi: 56°FHi: 13°C | Lo: 36°FLo: 2°C | Hi: 45°FHi: 7°C |
| POP: 30% | POP: 70% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 206 PM MDT Sat Oct 17 2026 
Upper Phyllis Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Upper Phyllis Lake Weather Map
Upper Phyllis Lake Quick Facts
Upper Phyllis Lake Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1243 PM MDT Sat Oct 17 2026
Discussion
...
KEY MESSAGES:- Gusty winds today (Saturday), creating choppy conditions for area lakes, especially across northwest Montana.
- Mild temperatures next week, with shower chances for most areas by Thursday and Friday.
- Confidence is growing for cooler temperatures by next weekend.
A cold front and upper-level weather system are moving across the Northern Rockies this afternoon. Other than a few light showers along the Canadian border, this front is mostly producing gusty west to southwest w...