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Chestnut Hill, PA Weather Forecast
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Chestnut Hill Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
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| Chance of T-Storm | Chance of Showers | Mostly Sunny | Chance of Showers | Showers Likely | Chance of T-Storm | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy |
| Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C |
| POP: 100% | POP: 20% | POP: 50% | POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 430 AM EDT Thu Aug 20 2026 
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Chestnut Hill Forecast Discussion
Issued: 438 AM EDT Thu Aug 20 2026
Key Messages
1) Locally heavy rain and a few strong thunderstorms possible across south central Pennsylvania today.
2) An unsettled weekend will be bookended by dry and sunny weather on Friday and early next week.
Discussion
... KEY MESSAGE 1: Locally heavy rain and a few strong thunderstorms possible across south central Pennsylvania today
A low pressure system centered in the Ohio Valley this morning will drift east today, bringing a period of unsettled weather across ...