Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

A Few Clouds

87°F

31°C

Humidity	54%
Wind Speed	NW 10 mph
Barometer	30.01 in
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	91°F (33°C)
Last update	9 Aug 4:15 pm EDT

More Information:

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

Extended Forecast for

Downingtown PA

Tonight
Low: 70 °F
Mostly Clear
Monday
High: 90 °F
Sunny then
Chance
T-storms
Monday Night
Low: 70 °F
Chance
T-storms
Tuesday
High: 87 °F
Mostly Sunny
then Chance
Showers
Tuesday Night
Low: 67 °F
Chance
Showers
Wednesday
High: 85 °F
Mostly Sunny
then Slight
Chance
Showers
Wednesday Night
Low: 66 °F
Showers
Likely
Thursday
High: 85 °F
Chance
Showers then
Mostly Sunny
Thursday Night
Low: 63 °F
Partly Cloudy

Detailed Forecast

Tonight

Mostly clear, with a low around 70. West wind around 5 mph becoming calm in the evening.

Monday

A chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 90. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night

A chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 70. Southwest 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.

Tuesday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Northwest 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.

Tuesday Night

A chance of showers, mainly before 2am. Mostly cloudy, with a low around 67. West wind around 5 mph becoming calm. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday

A slight chance of showers before 8am, then a slight chance of showers after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.

Wednesday Night

Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

Thursday

A chance of showers before 8am. Mostly sunny, with a high near 85. Chance of precipitation is 30%.

Thursday Night

Partly cloudy, with a low around 63.

Friday

Sunny, with a high near 81.

Friday Night

Mostly clear, with a low around 61.