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Sumner School, UT Weather Forecast
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Sumner School Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY | THURSDAY NIGHT | FRIDAY |
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| Chance of T-Storm | Chance of T-Storm | Thunderstorms | Thunderstorms | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 95°FHi: 35°C | Lo: 70°FLo: 21°C | Hi: 95°FHi: 35°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 70°FLo: 21°C | Hi: 95°FHi: 35°C Lo: 70°FLo: 21°C | Hi: 95°FHi: 35°C Lo: 70°FLo: 21°C | Hi: 95°FHi: 35°C | Hi: 91°FHi: 33°C Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C Lo: 69°FLo: 21°C |
| POP: 20% | POP: 30% | POP: 20% | POP: 20% | POP: 10% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1243 AM MDT Sat Aug 22 2026 
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Issued: 1019 PM MDT Fri Aug 21 2026
Key Messages
- Monsoonal moisture will continue to spread across Utah and southwest Wyoming through Saturday, bringing an increased threat of thunderstorms that could produce heavy rainfall capable of flash flooding.
- Moisture will decrease somewhat Sunday into Monday, with the potential for more substantial drying for at least northern Utah and southwest Wyoming late in the upcoming week.
Discussion
...An elongated ridge of high pressure is centered roughly over the Four Corners region this evening. ...