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Sidney Muni Weather Forecast
| TODAY | TONIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  | | | |  |  | | | | |  |
| Mostly Sunny | Partly Cloudy | Sunny | Partly Cloudy | Mostly Sunny | Showers Likely | Showers | Showers | Chance of Showers | Partly Cloudy | Mostly Clear | Mostly Clear |
| Hi: 80°FHi: 27°C | Lo: 50°FLo: 10°C | Hi: 79°FHi: 26°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C | Hi: 55°FHi: 13°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C Lo: 31°FLo: -1°C | Hi: 55°FHi: 13°C Lo: 31°FLo: -1°C |
| POP: 70% | POP: 80% | POP: 70% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 355 AM MDT Sun Oct 11 2026 
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Issued: 228 AM MDT Sun Oct 11 2026
Key Messages
- Above average temperatures and chances for gusty showers and some isolated storms through Sunday.
- A pattern change will bring a gradual cool down and increased chances for precipitation this week. Moderate to heavy rainfall possible Tuesday night through Wednesday night with some mountain snow expected.
Aviation
/00Z TAFS THROUGH 00Z MONDAY/... Issued at 1052 PM MDT Sat Oct 10 2026
Mostly light winds expected overnight at all terminals except KRWL, where gusty winds continue with shower...