Dangerous Heat Wave to Grip PA Sunday – Tuesday; Heat Indexes Up to 110F Expected

Posted by By July 17, 2020

Think it has been hot lately? The worst of the heat and humidity is still to come. High temperatures in the 90s combined with 50-60% humidity will result in heat index values well above 100F across a good portion of Pennsylvania Sunday to Tuesday. Heat indexes look to peak on Monday around 110F in southeast PA. It is important to take precautions to keep you and your loved ones safe during a heat wave of this intensity. Below are some key points from NOAA. A more extensive list of tips can be found at their site: NOAA Heat Wave Tips

Extreme Heat Infographic




Temperatures will begin to cool down by the second half of the upcoming week, but not by much. Things will just be back to what we’ve been seeing lately, likely after severe thunderstorms move through ahead of a weak cold front Wednesday.

MAXIMUM HEAT INDEX VALUES FORECAST

Everywhere from the Philadelphia Area to the Lehigh Valley to the Lower Susquehanna Valley will experience sweltering heat indexes between 105-110F Monday. The heat index values will slowly drop off as you work your way into the higher elevations of northern and western Pennsylvania.

Drink lots of water, stay out of the heat whenever possible, and never lock anyone in a closed vehicle for any amount of time.

Be sure to share this important forecast with family and friends using the blue button below.

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Josh has been passionate about weather as long as his memory dates! From watching the Weather Channel at age 7, to making hand-drawn hurricane maps at age 11, starting his first weather site at 13, and founding PWA at 15 and forecasting for the state for the past 9 years, Josh's interest in weather has never dwindled! As difficult as it is, he greatly enjoys forecasting for Pennsylvania due to its countless microclimates. The state is an East Coast severe weather hotspot and nearly always home to the rain/snow line during winter storms!
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