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Greenwich Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
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| Partly Cloudy | Chance of T-Storm | Partly Cloudy | Chance of T-Storm | Partly Cloudy | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Showers | Showers Likely | Chance of Rain | Mostly Clear |
| Lo: 40°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 59°FHi: 15°C Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C Lo: 39°FLo: 4°C | Hi: 50°FHi: 10°C | Lo: 31°FLo: -1°C | Hi: 51°FHi: 11°C Lo: 35°FLo: 2°C |
| POP: 20% | POP: 20% | POP: 70% | POP: 80% | POP: 90% | POP: 90% | POP: 70% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1243 PM MDT Sun Oct 18 2026 
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Issued: 629 PM MDT Sun Oct 18 2026
Key Messages
.KEY MESSAGES, Issued 103 PM MDT Sun Oct 18 2026...- Isolated showers and thunderstorms are possible each afternoon through Tuesday, mainly across central and southern Utah.
- Widespread precipitation returns late Wednesday across southern Utah, with coverage expanding northward through Friday. Many areas will see precipitation accumulations between 0.5-1.0" through this period, with locally up to 2.0-2.5".
- The late week storm will also bring modest snowfall to the high terrain across n...