Big Lake, UT Weather Forecast
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Big Lake Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Chance of T-Storm |
| Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C | Lo: 31°FLo: -1°C | Hi: 51°FHi: 11°C | Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C | Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C | Lo: 35°FLo: 2°C | Hi: 61°FHi: 16°C |
| POP: 50% | POP: 30% | POP: 20% | POP: 30% | POP: 20% | POP: 10% |
POP = Probability of Precipitation.
Weather Outlook Updated: 448 PM MDT Fri Sep 18 2026 

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Issued: 531 PM MDT Fri Sep 18 2026
Key Messages
- Scattered storms will develop this afternoon with stronger storms capable of producing strong outflow winds, small hail, and localized heavy rainfall.
- The threat for localized flash flooding will be heightened today due to saturated soils and the potential for additional heavy rainfall.
- After decreasing precipitation chances this weekend, another push of monsoonal moisture arrives by Tuesday.
Discussion
... Issued at 1152 AM MDT Fri Sep 18 2026
ONE LAST RAINY DAY; DRYING OUT THIS WEEKEN...
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