CWS Forecast: Northwest Pennsylvania

The Commonwealth remains active, with thunderstorms remaining likely on Tuesday and Wednesday in the southwestern half of the state, with severe storms possible in the Pittsburgh area. It’s expected to be drier for the rest of the week. While it remains cooler into the weekend, additional rain chances are likely on Saturday and especially Sunday.

Day One: Wednesday, August 12th 2026

Periods of rain during the day, partly cloudy overnight. Cool.

  High: 46°F

Low: 36°F

Day Two: Thursday, August 13th 2026

Remaining cool with mostly clear skies.

High: 49°F

Low: 37°F 

Day Three: Friday, August 14th 2026

Mostly sunny and a little warmer during the day, partly cloudy overnight.

High: 54°F

Low: 46°F 

Day Four: Saturday, August 15th 2026

Warmer with increasing clouds and rain chances. Thunderstorms possible overnight.

High: 64°F

Low: 55°F 

Day Five: Sunday, August 16th 2026

Periods of rain likely throughout the day, with thunder possible.

High: 62°F

Low: 47°F

Last Updated on April 30, 2026 at 10:30 pm