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Spider Lake Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | TUESDAY |
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| Chance of T-Storm | Chance of Rain | Chance of T-Storm | Rain/Snow Showers | Chance of T-Storm | Chance of Snow | Chance of Snow | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 51°FHi: 11°C | Lo: 40°FLo: 4°C | Hi: 50°FHi: 10°C | Lo: 31°FLo: -1°C | Hi: 41°FHi: 5°C | Lo: 29°FLo: -2°C | Hi: 41°FHi: 5°C | Hi: 49°FHi: 9°C Lo: 29°FLo: -2°C | Hi: 49°FHi: 9°C Lo: 29°FLo: -2°C | Hi: 49°FHi: 9°C Lo: 29°FLo: -2°C | Hi: 49°FHi: 9°C Lo: 29°FLo: -2°C |
| POP: 20% | POP: 70% | POP: 100% | POP: 100% | POP: 90% | POP: 40% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1242 AM MDT Wed Oct 21 2026 
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Issued: 1015 PM MDT Tue Oct 20 2026
Key Messages
- Widespread precipitation returns Wednesday morning across southern Utah, with coverage expanding northward through Friday. Many areas will see precipitation accumulations between 0.5-2" through this period, with local totals in excess of 3" possible.
- The heavy rain will bring a threat of flash flooding to southern and central Utah, and there is a Slight Risk of Excessive Rainfall across southern Utah Wednesday and across southern through east-central Utah Thursday.
- A few strong to se...