Flash Flood Risk in the Mid-Atlantic; Storms in the High Plains; Critical Fire Weather Threats in the West

Heavy rain and thunderstorms will pose a flash flood risk for the Mid-Atlantic. Severe thunderstorms are possible through Friday from the northern and central Plains to the Upper Midwest. Elevated and critical fire weather conditions with isolated dry thunderstorm potential across a large part of the West. Above average temperatures are expected in the Southern Plains and Northeast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

En Español

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fair

73°F

23°C

Humidity	94%
Wind Speed	Calm
Barometer	30.08 in
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Last update	12 Aug 8:35 pm EDT

More Information:

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

Extended Forecast for

Avondale PA

Tonight

Chance
T-storms and
Patchy Fog
Low: 71 °F
Thursday

Heavy Rain
and Patchy
Fog
High: 82 °F
Thursday
Night

Chance
Showers
Low: 70 °F
Friday

Chance
Showers then
Chance
T-storms
High: 85 °F
Friday
Night

Chance
T-storms then
Chance
Showers
Low: 67 °F
Saturday

Chance
Showers
High: 83 °F
Saturday
Night

Mostly Cloudy
Low: 67 °F
Sunday

Chance
Showers
High: 78 °F
Sunday
Night

Chance
Showers
Low: 67 °F

Detailed Forecast

Tonight

A chance of showers and thunderstorms, mainly after 1am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 11am. Some of the storms could produce heavy rain. Patchy fog before 9am. Otherwise, cloudy, with a high near 82. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. East wind around 5 mph becoming calm. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

A chance of showers, with thunderstorms also possible after 8am. Mostly cloudy, with a high near 85. Northeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 67. Northeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

A slight chance of showers, then a chance of showers and thunderstorms after 8am. Mostly cloudy, with a high near 83. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Mostly cloudy, with a low around 67.

Sunday

A chance of showers. Mostly cloudy, with a high near 78. Chance of precipitation is 30%.

Sunday Night

A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

Monday

A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 40%.

Monday Night

A chance of showers. Partly cloudy, with a low around 67. Chance of precipitation is 30%.

Tuesday

A chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 30%.