Pennsylvania Weather Today: Keystone State to Face Brief Respite From Stormy Conditions; Orange Alert in 12 Counties – Check Minimum Temperature, Maximum Temperature, AQI & More

According to the NWS, the weather in Pennsylvania will remain pleasant today, with air quality remaining mostly poor. The current conditions mark a brief respite, ahead of an incoming storm.

By: Anushka Singh
Last Updated: July 20, 2026 17:34:56 IST

Over the weekend, Pennsylvania experienced a storm, followed by hot and dry weather. Now, authorities have shared that weather in the state will remain pleasant, but with poor quality due to ongoing wildfires.  

Pennsylvania Weather Today: Weather Forecast for Today 

According to the National Weather Service (NWS), Pennsylvania will face pleasant weather with warm and dry conditions today. Expect sunny skies before an incoming storm brewing over the Great Lakes region takes over from tomorrow, putting the state at a Level 3 risk (out of 5 levels). However, air quality will remain below average. The humidity level is moderate, hovering at 58% today.  

Pennsylvania Weather Today: AQI Air Quality Forecast

The National Weather Service (NWS) has clarified that the pleasant weather conditions won’t bring about any improvement in air quality. As a result, code orange air alerts have been issued in 12 counties of the state due to the poor air quality today. 

“Smoke from Canadian wildfires will be swept away today… giving way to mainly fair and dry weather expected for Sunday through Monday”, the forecast stated. The current pollutant is PM 2.5.  

Pennsylvania Weather Today: Minimum Temperature & Maximum Temperature 

  • Minimum temperature: 28°Celsius  

  • Maximum temperature: 14°Celsius 

It is important to note that Pennsylvania is a big state with a diverse topography, which means that temperatures will vary slightly between the major metropolitan regions. Southeastern Pennsylvania, which includes Philadelphia will be the state’s warmest region, while central Pennsylvania will face the coolest conditions. Western Pennsylvania, which includes the Pittsburgh metropolitan area will face the most moderate weather. 

Pennsylvania Weather: Weather Forecast for Next 6 Days 

Over the next 6 days, Pennsylvania’s weather will fluctuate quite a bit. From tomorrow (July 21), there will be thunderstorms with heavy winds and some minor localised floodings.

Wednesday (July 20) will still be slightly humid, but with a cold wind washing away the effects of thunderstorms. From Thursday (July 23) through Saturday (July 25) , the weather will be warm and sunny.  

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