Mendon, UT Weather Forecast
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Mendon Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY |
| Clearing | Mostly Clear | Sunny | Partly Cloudy | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 81°FHi: 27°C | Lo: 49°FLo: 9°C | Hi: 89°FHi: 32°C | Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C | Lo: 39°FLo: 4°C | Hi: 71°FHi: 22°C Lo: 39°FLo: 4°C | Hi: 71°FHi: 22°C Lo: 39°FLo: 4°C | Hi: 80°FHi: 27°C Lo: 45°FLo: 7°C | Hi: 80°FHi: 27°C Lo: 45°FLo: 7°C | Hi: 80°FHi: 27°C Lo: 45°FLo: 7°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1241 AM MDT Fri Sep 11 2026 

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Issued: 519 AM MDT Fri Sep 11 2026
Key Messages
.KEY MESSAGES, Issued 1032 PM MDT Thu Sep 10 2026...- A marginal risk (level 1/4) for excessive rainfall is in place across portions of southern Utah Friday through Sunday.
- There is a ~50% chance the northern valleys will see wind gusts in excess of 45 mph for 3 or more hours Saturday evening into late Saturday night ahead of a strong cold front.
Discussion
, Issued 1032 PM MDT Thu Sep 10 2026... A weak shortwave crossing the region embedded in quasi-zonal flow continues to shift across...
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