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Mcmann School Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 |  | |  | |  | | |  | | | |
| Chance of T-Storm | Partly Cloudy | Chance of T-Storm | Mostly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Clearing | Mostly Clear | Mostly Sunny | Chance of T-Storm | Chance of T-Storm |
| Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 95°FHi: 35°C | Lo: 65°FLo: 18°C | Hi: 95°FHi: 35°C | Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C | Lo: 60°FLo: 16°C | Hi: 89°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 90°FHi: 32°C |
| POP: 20% | POP: 50% | POP: 30% | POP: 20% | POP: 30% | POP: 40% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 547 PM MDT Fri Aug 21 2026 
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Issued: 521 PM MDT Fri Aug 21 2026
Key Messages
- Upper ridge will dominate the weather through early next week.
- Isolated severe thunderstorms may occur late this afternoon/evening in/near the Black Hills to the SD/NE border.
- Isolated severe thunderstorms may occur over northeastern WY late Saturday afternoon and evening.
- Temperatures will average about 4-8F above normal.
Discussion
...(This Afternoon Through Thursday) Issued at 1149 AM MDT Fri Aug 21 2026
Current upper-air analysis and water vapor imagery depict large- scale ridging c...