State weather
Pennsylvania weather
Forecasts for 30 cities in Pennsylvania with 20,000+ residents from the National Weather Service. No NWS alerts are active in Pennsylvania.
City forecasts: snapshot of Oct 28, 2:32 AM EDT Alerts updated Oct 28, 2:15 AM EDT
| City | County | Observed | Forecast | Population |
|---|---|---|---|---|
| Philadelphia | Philadelphia County | 46°F · Clear | Overnight: Patchy Fog, low 45°F | 1,573,916 |
| Pittsburgh | Allegheny County | 54°F · Clear | Overnight: Patchy Fog, low 50°F | 307,668 |
| Allentown | Lehigh County | 45°F · Clear | Overnight: Patchy Fog, low 38°F | 127,138 |
| Reading | Berks County | 43°F · Clear | Overnight: Patchy Fog, low 40°F | 96,000 |
| Erie | Erie County | 46°F · Clear | Overnight: Mostly Cloudy, low 48°F | 92,940 |
| Bethlehem | Northampton County | 45°F · Clear | Overnight: Patchy Fog, low 38°F | 79,453 |
| Scranton | Lackawanna County | 43°F · Clear | Overnight: Partly Cloudy, low 36°F | 75,905 |
| Lancaster | Lancaster County | 45°F · Clear | Overnight: Partly Cloudy, low 43°F | 58,441 |
| Harrisburg | Dauphin County | 45°F · Clear | Overnight: Partly Cloudy, low 43°F | 50,649 |
| York | York County | 43°F · Fog/Mist | Overnight: Partly Cloudy, low 45°F | 45,241 |
| Wilkes-Barre | Luzerne County | 43°F · Clear | Overnight: Partly Cloudy, low 36°F | 44,661 |
| Altoona | Blair County | 48°F · Clear | Overnight: Mostly Cloudy, low 44°F | 42,719 |
| State College | Centre County | 45°F · Clear | Overnight: Mostly Cloudy, low 39°F | 41,228 |
| Norristown | Montgomery County | 43°F · Clear | Overnight: Patchy Fog, low 41°F | 36,075 |
| Chester | Delaware County | 50°F | Overnight: Patchy Fog, low 45°F | 34,052 |
| Bethel Park | Allegheny County | 54°F · Clear | Overnight: Mostly Cloudy, low 49°F | 32,376 |
| Easton | Northampton County | 45°F · Clear | Overnight: Patchy Fog, low 37°F | 30,432 |
| Hazleton | Luzerne County | 39°F · Clear | Overnight: Partly Cloudy, low 37°F | 30,354 |
| Monroeville | Allegheny County | 54°F · Clear | Overnight: Mostly Cloudy, low 47°F | 27,966 |
| Williamsport | Lycoming County | 41°F · Clear | Overnight: Mostly Cloudy, low 39°F | 27,628 |
| Lebanon | Lebanon County | 45°F · Clear | Overnight: Partly Cloudy, low 41°F | 26,456 |
| Plum | Allegheny County | 54°F · Clear | Overnight: Mostly Cloudy, low 46°F | 26,420 |
| Pottstown | Montgomery County | 43°F · Clear | Overnight: Patchy Fog, low 39°F | 23,553 |
| Chambersburg | Franklin County | 52°F · Clear | Overnight: Mostly Cloudy, low 45°F | 23,041 |
| West Chester | Chester County | 45°F | Overnight: Patchy Fog, low 42°F | 22,758 |
| Carlisle | Cumberland County | 45°F · Clear | Overnight: Mostly Cloudy, low 43°F | 22,517 |
| New Castle | Lawrence County | 45°F · Clear | Overnight: Mostly Cloudy, low 48°F | 21,332 |
| Murrysville | Westmoreland County | 54°F · Clear | Overnight: Mostly Cloudy, low 48°F | 20,729 |
| Baldwin | Allegheny County | 54°F · Clear | Overnight: Mostly Cloudy, low 50°F | 20,712 |
| Phoenixville | Chester County | 43°F · Clear | Overnight: Patchy Fog, low 39°F | 20,286 |
Observed temperatures come from the NWS station nearest each city at the time of the snapshot. Open a city for current conditions, the next 24 hours and the 7-day forecast, loaded live from api.weather.gov.
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Active alerts in Pennsylvania
No National Weather Service alerts are active in Pennsylvania right now.
For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.
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Sources
- Forecasts, observations and alerts: National Weather Service API (api.weather.gov/alerts/active?area=PA).
- Cities and population: U.S. Census Bureau, Vintage 2024 population estimates.
- These agencies do not endorse OpenForecast.