Deerfield, PA Weather Forecast
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Deerfield Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
| Mostly Cloudy | Partly Cloudy | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear |
| Hi: 59°FHi: 15°C | Lo: 49°FLo: 9°C | Hi: 59°FHi: 15°C | Lo: 35°FLo: 2°C | Hi: 59°FHi: 15°C | Lo: 40°FLo: 4°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 600 AM EDT Sun Oct 04 2026 

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Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 706 AM EDT Sun Oct 4 2026
Key Messages
1) Frost/freeze conditions are probable Monday night and Tuesday night
2) Little to no rainfall forecast through Saturday, October 10th
Discussion
... KEY MESSAGE 1: Frost/freeze conditions are probable Monday night and Tuesday night
The coldest air of the early Autumn season will push southeast into Central PA early in the upcoming week with frost/freeze conditions expected Monday night and Tuesday night over at least the NW half of the CWA, with min temps around the freezing mark acros...
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