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Castleton Weather Forecast
| OVERNIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SATURDAY NIGHT |
 |  |  | |  | | | | | |  |  |
| Mostly Cloudy | Mostly Sunny | Partly Cloudy | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Chance of Showers | Chance of T-Storm |
| Lo: 65°FLo: 18°C | Hi: 91°FHi: 33°C | Lo: 65°FLo: 18°C | Hi: 91°FHi: 33°C | Lo: 61°FLo: 16°C | Hi: 91°FHi: 33°C Lo: 65°FLo: 18°C | Hi: 91°FHi: 33°C Lo: 65°FLo: 18°C | Hi: 95°FHi: 35°C | Hi: 98°FHi: 37°C Lo: 65°FLo: 18°C | Hi: 98°FHi: 37°C Lo: 65°FLo: 18°C | Hi: 91°FHi: 33°C | Lo: 65°FLo: 18°C |
| POP: 10% | POP: 10% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1131 PM MDT Sun Sep 06 2026 
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Meteorlogic Glosserator
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Issued: 1156 PM MDT Sun Sep 6 2026
Key Messages
- Expect showers and thunderstorms through Monday morning. Isolated stronger storms may be capable of producing flash flooding.
- Warmer and drier conditions return Tuesday onward, though a chance for isolated mountain showers remains each afternoon.
Discussion
... Issued at 1040 PM MDT Sun Sep 6 2026
Sandwiched between a trough in the Pacific Northwest and a ridge over the Southern Plains, southwesterly flow is dominant aloft over the Desert Southwest. This flow is advecting in a rich plum...