Briefing for Heat, Severe Storm, and Flash Flood Risks through Thursday

Dangerously hot and humid conditions are expected through Wednesday. There is also a threat of isolated severe thunderstorms on Wednesday. Flash flooding from locally heavy rainfall is possible on Thursday. See this briefing for details on these hazards. Read More >

Hazardous Weather Conditions

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fair

81°F

27°C

Humidity	84%
Wind Speed	W 5 mph
Barometer	30.05 in
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	29 Jul 10:15 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Toughkenamon PA

Heat Advisory July 29, 10:35pm until July 30, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory July 29, 10:35pm until July 30, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
Tonight
Low: 73 °F
Mostly Clear
Wednesday
High: 95 °F
Sunny
Wednesday Night
Low: 73 °F
Mostly Clear
then Slight
Chance
Showers
Thursday
High: 89 °F
Chance
Showers then
Heavy Rain
Thursday Night
Low: 66 °F
Heavy Rain
Friday
High: 71 °F
Showers
Likely
Friday Night
Low: 60 °F
Mostly Cloudy
Saturday
High: 78 °F
Sunny

Detailed Forecast

Tonight

Mostly clear, with a low around 73. Calm wind.

Wednesday

Sunny, with a high near 95. Heat index values as high as 101. Calm wind becoming southwest around 5 mph in the afternoon.

Wednesday Night

A slight chance of showers after 2am. Mostly clear, with a low around 73. South wind around 5 mph. Chance of precipitation is 20%.

Thursday

A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 89. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 66. Northeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

Friday

Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 8am. Cloudy, with a high near 71. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night

Mostly cloudy, with a low around 60.

Saturday

Sunny, with a high near 78.

Saturday Night

Mostly clear, with a low around 59.

Sunday

Sunny, with a high near 81.

Sunday Night

Partly cloudy, with a low around 60.

Monday

Mostly sunny, with a high near 82.