Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

66°F

19°C

Humidity	100%
Wind Speed	E 3 mph
Barometer	30.04 in
Dewpoint	66°F (19°C)
Visibility	7.00 mi
Last update	22 Aug 3:55 am EDT

More Information:

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

Extended Forecast for

Downingtown PA

Overnight
Low: 64 °F
Slight Chance
Showers and
Patchy Fog
Saturday
High: 76 °F
Chance
Showers and
Patchy Fog
Saturday Night
Low: 65 °F
Showers
Likely and
Patchy Fog
Sunday
High: 80 °F
Patchy Fog
then Mostly
Sunny
Sunday Night
Low: 60 °F
Mostly Clear
Monday
High: 77 °F
Sunny
Monday Night
Low: 58 °F
Mostly Clear
Tuesday
High: 79 °F
Sunny
Tuesday Night
Low: 60 °F
Mostly Clear

Detailed Forecast

Overnight

A slight chance of showers after 5am. Patchy fog. Otherwise, cloudy, with a low around 64. Calm wind. Chance of precipitation is 20%.

Saturday

A chance of showers, mainly after 8am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 76. Southeast wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Saturday Night

Showers and thunderstorms likely. Patchy fog. Otherwise, mostly cloudy, with a low around 65. East wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

Patchy fog before 11am. Otherwise, mostly sunny, with a high near 80. West wind 5 to 10 mph.

Sunday Night

Mostly clear, with a low around 60. West wind around 5 mph becoming calm in the evening.

Monday

Sunny, with a high near 77.

Monday Night

Mostly clear, with a low around 58.

Tuesday

Sunny, with a high near 79.

Tuesday Night

Mostly clear, with a low around 60.