Big Water, UT Weather Forecast
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Big Water Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
| Partly Cloudy | Chance of T-Storm | Sunny | Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Chance of Showers | Chance of Showers | Partly Cloudy | Mostly Clear | Mostly Clear |
| Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 60°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C | Lo: 60°FLo: 16°C | Hi: 85°FHi: 29°C Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C Lo: 61°FLo: 16°C |
| POP: 40% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1244 AM MDT Fri Sep 18 2026 

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Issued: 434 AM MDT Fri Sep 18 2026
Key Messages
.KEY MESSAGES, Issued 1018 PM MDT Thu Sep 17 2026...- Periods of showers and thunderstorms will continue tonight into Friday, with the best coverage over northern Utah and southwest Wyoming. Heavy rain, gusty winds, and hail will be the primarily threats.
- A cold front will bring drier conditions with more seasonable temperatures Saturday through the remainder of the weekend with moisture expected to increase again to start the work week.
Discussion
, Issued 1018 PM MDT Thu Sep 17 2026.....
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