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Great Mills Weather Forecast
| REST OF THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  |  | | |  | | |  |  | | |
| Isolated Showers | Partly Cloudy | Sunny | Partly Cloudy | Sunny | Mostly Clear | Sunny | Partly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 89°FHi: 32°C | Lo: 71°FLo: 22°C | Hi: 89°FHi: 32°C | Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C | Lo: 79°FLo: 26°C | Hi: 91°FHi: 33°C | Lo: 79°FLo: 26°C | Hi: 95°FHi: 35°C | Lo: 75°FLo: 24°C | Hi: 89°FHi: 32°C | Lo: 70°FLo: 21°C |
| POP: 20% | POP: 40% | POP: 40% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 434 PM EDT Sun Aug 30 2026 
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Issued: 418 PM EDT Sun Aug 30 2026
Key Messages
- 1) Warmer and more humid this afternoon with isolated thunderstorms possible.
- 2) Near-record early September heat expected.
- 3) Thunderstorm chances increase this week, but timing remains highly uncertain.
Discussion
... KEY MESSAGE 1...Warmer and more humid this afternoon with isolated thunderstorms.
A trough of low pressure will continue to initiate widely scattered showers and thunderstorms, with gradually diminishing coverage into early evening. The main threats will be spotty brief ...