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Hazardous Weather Conditions

Heat Advisory until May 20, 08:00 PM EDT

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fair

71°F

22°C

Humidity	94%
Wind Speed	W 6 mph
Barometer	30.01 in
Dewpoint	69°F (21°C)
Visibility	9.00 mi
Last update	20 May 3:55 am EDT

More Information:

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

Extended Forecast for

Downingtown PA

Heat Advisory May 20, 04:17am until May 20, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory May 20, 04:17am until May 20, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
Today
High: 91 °F
Sunny then
Showers
Likely
Tonight
Low: 54 °F
Showers then
Chance
Showers
Thursday
High: 65 °F
Showers
Thursday Night
Low: 50 °F
Mostly Cloudy
Friday
High: 64 °F
Chance
Showers then
Showers
Likely
Friday Night
Low: 46 °F
Showers
Saturday
High: 58 °F
Showers
Saturday Night
Low: 48 °F
Showers

Detailed Forecast

Today

A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 91. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers and possibly a thunderstorm before 5am, then a chance of showers. Low around 54. North wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

Thursday

Showers, mainly before 1pm. High near 65. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

Mostly cloudy, with a low around 50. East wind around 5 mph becoming calm.

Friday

Showers likely, mainly after 2pm. Mostly cloudy, with a high near 64. East wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

Showers. Low around 46. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Saturday

Showers. High near 58. Chance of precipitation is 90%.

Saturday Night

Showers. Low around 48. Chance of precipitation is 80%.

Sunday

Showers likely, mainly before 8am. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.

Sunday Night

A chance of showers after 8pm. Cloudy, with a low around 54. Chance of precipitation is 40%.

Memorial Day

A chance of showers. Mostly cloudy, with a high near 74. Chance of precipitation is 30%.