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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: @ 12-Jun-2026 1:06pm  
Summary / Temperature Wind Rain Outlook
Mostly cloudy Mostly cloudy
Currently: 89.8, Max: 90.1, Min: 69.3 89.8°F
Warmer 2.2°F than last hour.

Extremely Hot

Feels like: 112°F

  Today Yesterday
High: 90.1°F
12:47pm 		93.4°F
3:52pm
Low: 69.3°F
5:50am 		70.3°F
5:01am
Wind from WSW WSW
2
Gust:
 6 mph
1 Bft - Light air
Today: 11 mph 11:23am
Gust Month: 25.9 mph June 06
Rain Today: 0.01 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0.22 in
This Month: 0.96 in
Yearly Total: 13.66 in
Tonight

Tonight: Chance Showers And Thunderstorms then Mostly Cloudy
Chance Showers And T-Storms then Mostly Cloudy
Humidity & Barometer Almanac Moon
Humidity: 67 % Decreased 6.0% since last hour.
Dew Point: 77.4°F Decreased 0.5°F since last hour.
Barometer: 29.74 inHg  
Baro Trend: Steady
Sunrise: 5:33am
Sunset: 8:34pm
Moonrise: 3:02am
Moonset: 6:07pm
Waning Crescent
Waning Crescent, Moon at 25 days in cycle
9%
Illuminated
UV Index Solar Radiation
   4.6     Medium 
High: 8.2 @ 12:40pm
348 W/m2 (34 %)
High: 1139 @  1:01pm
 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 8am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 92. West wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Davis VP+ forecast: Mostly cloudy and cooler. Precipitation possible within 12 hours, possibly heavy at times. Windy.
 
Tonight

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

Lo 61 °F		 NWS forecast: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 61. Northwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.