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Heat Advisory HEAT ADVISORY - Chester County  - Lancaster County

NWS Northeast Regional Radar WU North East Satellite
Radar/Satellite images courtesy of NOAA/NWS and Weather Underground.
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Updated: @ 11-Jun-2026 1:04pm  
Summary / Temperature Wind Rain Outlook
Few Clouds Few Clouds
Currently: 90.5, Max: 90.7, Min: 70.3 90.5°F
Warmer 2.0°F than last hour.

Heat Danger

Feels like: 115°F

  Today Yesterday
High: 90.7°F
1:00pm 		84.6°F
2:46pm
Low: 70.3°F
5:01am 		67.3°F
1:09am
Wind from WNW WNW
2.9
Gust:
 12.1 mph
1 Bft - Light air
Today: 12.1 mph 11:05am
Gust Month: 25.9 mph June 06
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0.37 in
This Month: 0.73 in
Yearly Total: 13.43 in
Tonight

Tonight: Showers And Thunderstorms Likely then Mostly Cloudy
Showers And T-Storms Likely then Mostly Cloudy
Humidity & Barometer Almanac Moon
Humidity: 70 % Decreased 3.0% since last hour.
Dew Point: 79.3°F Increased 0.5°F since last hour.
Barometer: 29.79 inHg Falling 0.02 inHg/hr
Baro Trend: Falling Slowly
Sunrise: 5:33am
Sunset: 8:34pm
Moonrise: 2:30am
Moonset: 4:48pm
Waning Crescent
Waning Crescent, Moon at 24 days in cycle
17%
Illuminated
UV Index Solar Radiation
   7.7     High 
High: 7.9 @ 12:53pm
958 W/m2 (92 %)
High: 976 @  12:58pm
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

Today: Patchy Fog then Chance Showers And Thunderstorms
Patchy Fog then Chance Showers And T-Storms

Hi 92 °F		 NWS forecast: Patchy fog before 9am, then a chance of showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 92. West wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
Davis VP+ forecast: Mostly cloudy with little temperature change. Precipitation likely. Windy with possible wind shift to the W, NW, or N.
 
Tonight

Tonight: Showers And Thunderstorms Likely then Mostly Cloudy
Showers And T-Storms Likely then Mostly Cloudy

Lo 69 °F		 NWS forecast: Showers and thunderstorms likely before 11pm. Some of the storms could be severe. Mostly cloudy, with a low around 69. West wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.