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Newberry Flat Reservoir Weather Forecast
| REST OF TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Mostly Sunny | Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear |
| Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Hi: 65°FHi: 18°C Lo: 40°FLo: 4°C | Hi: 65°FHi: 18°C Lo: 40°FLo: 4°C | Hi: 59°FHi: 15°C Lo: 41°FLo: 5°C | Hi: 59°FHi: 15°C Lo: 41°FLo: 5°C | Lo: 39°FLo: 4°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1241 PM MDT Mon Sep 28 2026 
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Issued: 1245 AM MDT Mon Sep 28 2026
Key Messages
- Slight chances for isolated showers through early this morning near the North Dakota border. Highest chances are concentrated in the SE Yellowstone Valley.
- Warm, dry, and gusty conditions on Tuesday will be cause for fire weather concerns.
- The first major frost of the season is possible along river bottoms Thursday morning.
Discussion
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An upper-level ridge over the Central US is interacting with an upper-level low over NORCAL and an upper-level trough over Manitoba/Ontario, producing...