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Greenfield Reservoir Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 |  | |  |  |  | | | | |  | |
| Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Clear | Sunny | Mostly Clear | Partly Cloudy | Chance of T-Storm |
| Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C |
| POP: 40% | POP: 50% | POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 428 AM EDT Mon Aug 24 2026 
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Greenfield Reservoir Forecast Discussion
Issued: 1157 PM EDT Sun Aug 23 2026
Key Messages
- Breezy prior to sunset with northwest wind gusts of 20 to 25 mph.
- Dangerous swimming conditions through this evening on southern Lake Michigan with a High Swim Risk.
- Seasonable temperatures and much lower humidity through Tuesday.
- Next opportunity for rain and storms arrives Wednesday afternoon and evening (30-60% chance).
Discussion
... Issued at 1241 PM EDT Sun Aug 23 2026
We are getting a taste of fall today with clouds, showers, breezy conditions, and cooler temperatures! A low pres...