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Cornwall Church, PA Weather Forecast
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Cornwall Church Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  |  | |  | | | |  | | |  |
| Partly Cloudy | Sunny | Clear | Sunny | Patchy Fog | Patchy Fog | Partly Cloudy | Mostly Sunny | Mostly Cloudy | Mostly Sunny | Partly Cloudy | Chance of Showers |
| Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C |
| POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 600 PM EDT Sun Sep 13 2026 
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Issued: 301 PM EDT Sun Sep 13 2026
Key Messages
1) A broken line of strong to severe thunderstorms is likely to develop across northwestern Pennsylvania later this afternoon, posing a threat of locally damaging wind gusts before weakening as it moves southeastward late this evening.
2) A taste of fall to start the workweek will be followed by increasing humidity and chances for rain for the second half of the week.
Discussion
... KEY MESSAGE 1: A broken line of strong to severe thunderstorms is likely to develop across northwestern P...