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

Critical fire weather conditions persist across portions of the Northwest, Northern Rockies and Great Basin. Severe thunderstorms with large hail and a few strong gusts are possible across parts of the northern and central Plains. Heavy rainfall brings a flash flooding risk to the Mid-Atlantic. Heat builds in the Southwest into California this week. Read More >

Hazardous Weather Conditions

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Current conditions at

Brandywine Regional Airport (KOQN)

Lat: 39.99°NLon: 75.58°WElev: 465ft.

Fair

81°F

27°C

Humidity	79%
Wind Speed	Calm
Barometer	30.04 in
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	86°F (30°C)
Last update	12 Aug 8:35 am EDT

More Information:

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

Extended Forecast for

West Chester PA

Flash Flood Watch August 12, 11:00am until August 12, 11:00pm

Click here for hazard details and duration

Flash Flood Watch

Today

Heavy Rain
High: 89 °F
Tonight

Heavy Rain
Low: 72 °F
Thursday

Showers
Likely
High: 84 °F
Thursday
Night

Chance
Showers
Low: 70 °F
Friday

Chance
Showers then
Chance
T-storms
High: 84 °F
Friday
Night

Chance
T-storms then
Chance
Showers
Low: 69 °F
Saturday

Partly Sunny
then Chance
Showers
High: 81 °F
Saturday
Night

Chance
Showers then
Mostly Cloudy
Low: 67 °F
Sunday

Chance
Showers
High: 79 °F

Detailed Forecast

Today

Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 89. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

Tonight

Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms after 7pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Thursday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. East wind around 5 mph. Chance of precipitation is 70%. 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 50%. 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 84. East 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 69. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

A chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.

Saturday Night

A chance of showers before 8pm. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

Sunday

A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 40%.

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 82. Chance of precipitation is 40%.

Monday Night

Partly cloudy, with a low around 67.