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Penn Wynne Weather Forecast
| REST OF TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
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| Chance of T-Storm | Partly Cloudy | Sunny | Partly Cloudy | Showers Likely | Chance of Showers | Mostly Sunny | Chance of Showers | Showers Likely | Showers Likely | Chance of T-Storm | Chance of T-Storm |
| Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C |
| POP: 20% | POP: 60% | POP: 60% | POP: 50% | POP: 60% | POP: 60% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 249 PM EDT Tue Aug 18 2026 
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Penn Wynne Forecast Discussion
Issued: 750 PM EDT Tue Aug 18 2026
Key Messages
1. A weak cold front will sink south through the region toward the coast overnight, with dry conditions and lower humidity expected for Wednesday.
2. A stronger cold front is expected to cross through the region on Thursday, resulting in greater chances for showers and thunderstorms. Conditions look to remain unsettled through the weekend, with daily chances of showers and storms each day.
Discussion
... KEY MESSAGE 1...A weak cold front will sink south thr...