Areas of Excessive Rainfall from Southwest U.S. Monsoons; Monitoring Tropical Cyclone Formation Which Could Impact the Southeast U.S.

In Arizona and New Mexico, heavy to excessive rainfall from monsoon thunderstorms may bring isolated flash and urban flooding today into Sunday. Tropical wave (AL94) is likely to become a depression by late Friday or over this weekend in the vicinity of the Bahamas. Significant uncertainty remains in the track and intensity, but chances for impacts to the southeast U.S. coast are increasing. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fair

68°F

20°C

Humidity	100%
Wind Speed	NW 7 mph
Barometer	29.83 in
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Last update	25 Sep 9:15 pm EDT

More Information:

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

Extended Forecast for

Thorndale PA

Tonight
Low: 63 °F
Chance
T-storms then
Mostly Cloudy
Friday
High: 79 °F
Decreasing
Clouds
Friday Night
Low: 58 °F
Mostly Cloudy
Saturday
High: 78 °F
Mostly Cloudy
then Slight
Chance
Showers
Saturday Night
Low: 62 °F
Chance
Showers
Sunday
High: 75 °F
Chance
Showers
Sunday Night
Low: 60 °F
Mostly Cloudy
Monday
High: 76 °F
Chance
Showers
Monday Night
Low: 61 °F
Chance
Showers

Detailed Forecast

Tonight

A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 63. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

Mostly cloudy, then gradually becoming sunny, with a high near 79. Northwest wind around 5 mph.

Friday Night

Mostly cloudy, with a low around 58. Calm wind.

Saturday

A slight chance of showers after 2pm. Mostly cloudy, with a high near 78. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 20%.

Saturday Night

A chance of showers, mainly after 8pm. Cloudy, with a low around 62. Calm wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday

A chance of showers, mainly before 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night

Mostly cloudy, with a low around 60.

Monday

A chance of showers. Mostly cloudy, with a high near 76. Chance of precipitation is 30%.

Monday Night

A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.

Tuesday

A chance of showers. Mostly cloudy, with a high near 75. Chance of precipitation is 30%.

Tuesday Night

Mostly cloudy, with a low around 54.

Wednesday

Mostly sunny, with a high near 68.