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Webb School Weather Forecast
| LATE THIS AFTERNOON | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  |  | |  | | |  | |  |  |
| Smoke | Mostly Clear | Clearing | Clearing | Partly Cloudy | Chance of T-Storm | Partly Cloudy | Chance of T-Storm | Mostly Sunny | Chance of T-Storm | Chance of Showers | Chance of Showers |
| Hi: 91°FHi: 33°C | Lo: 60°FLo: 16°C | Hi: 91°FHi: 33°C | Lo: 59°FLo: 15°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 91°FHi: 33°C | Lo: 61°FLo: 16°C | Hi: 91°FHi: 33°C | Lo: 60°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 55°FLo: 13°C |
| POP: 50% | POP: 30% | POP: 40% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 247 PM MDT Thu Aug 20 2026 
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Webb School Forecast Discussion
Issued: 1022 AM MDT Thu Aug 20 2026
Key Messages
- Upper ridge will dominate the weather through early next week
- Thunderstorm chances will be very limited through Saturday afternoon
- Temperatures will average about 4-8F above normal
Discussion
...(This Evening Through Wednesday) Issued at 1259 PM MDT Wed Aug 19 2026
18z surface analysis had a weak trough from eastern MT into western WY. 0.5km visible loop depicted a weak outflow boundary/CU over south-central SD in a regime characterized by little MLCIN per ...