Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Hazardous Weather Conditions

Flood Watch in effect from August 27, 12:00 PM EDT until August 28, 04:00 AM EDT

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Overcast

72°F

22°C

Humidity	78%
Wind Speed	Calm
Barometer	30.03 in
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Last update	26 Aug 8:15 pm EDT

More Information:

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

Extended Forecast for

Exton PA

Flood Watch August 27, 12:00pm until August 28, 04:00am

Click here for hazard details and duration

Flood Watch

Tonight
Low: 68 °F
Mostly Cloudy
Thursday
High: 85 °F
Chance
T-storms then
Showers
Likely
Thursday Night
Low: 66 °F
Heavy Rain
then Chance
Showers
Friday
High: 84 °F
Mostly Sunny
Friday Night
Low: 63 °F
Partly Cloudy
Saturday
High: 84 °F
Sunny
Saturday Night
Low: 63 °F
Mostly Clear
Sunday
High: 86 °F
Mostly Sunny
Sunday Night
Low: 68 °F
Partly Cloudy

Detailed Forecast

Tonight

Mostly cloudy, with a low around 68. South wind around 5 mph.

Thursday

A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 85. South wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers and thunderstorms before 3am, then a slight chance of showers after 4am. Some of the storms could produce heavy rainfall. Low around 66. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Friday

Mostly sunny, with a high near 84. Calm wind becoming northwest around 5 mph in the afternoon.

Friday Night

Partly cloudy, with a low around 63. Calm wind becoming north around 5 mph.

Saturday

Sunny, with a high near 84.

Saturday Night

Mostly clear, with a low around 63.

Sunday

Mostly sunny, with a high near 86.

Sunday Night

Partly cloudy, with a low around 68.