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Peterson Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY |
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| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Clear | Mostly Clear | Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 79°FHi: 26°C | Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C | Lo: 41°FLo: 5°C | Hi: 70°FHi: 21°C | Lo: 40°FLo: 4°C | Hi: 71°FHi: 22°C Lo: 40°FLo: 4°C | Hi: 71°FHi: 22°C Lo: 40°FLo: 4°C | Hi: 79°FHi: 26°C | Hi: 79°FHi: 26°C Lo: 45°FLo: 7°C | Hi: 79°FHi: 26°C Lo: 45°FLo: 7°C | Hi: 79°FHi: 26°C Lo: 45°FLo: 7°C |
| POP: 70% | POP: 50% | POP: 90% | POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1243 AM MDT Thu Sep 17 2026 
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Issued: 1033 PM MDT Wed Sep 16 2026
Key Messages
.KEY MESSAGES, Issued 1253 PM MDT Wed Sep 16 2026...- Flash flooding remains the primary weather risk across southern and eastern Utah through Friday. Multiple rounds of showers and thunderstorms will bring the threat for locally heavy rainfall.
- A Flood Watch for Flash Flooding has been issued from late tonight through Thursday morning for much of southern Utah, while the Watch extends through Thursday evening for much of Carbon and Emery Counties.
- A marginal risk for severe thunderst...