Heavy to Excessive Rainfall for the Southwest;

Tropical moisture from Priscilla will bring a multi-day thunderstorm, widespread heavy rainfall and flash flooding event across the Southwest/Four Corners region. Flash flooding will be a concern in burn scars, slot canyons, and urban areas. Widespread storms are expected in central/South Florida with some isolated flash flooding possible. Read More >

Hazardous Weather Conditions

Frost Advisory in effect from October 10, 02:00 AM EDT until October 10, 09:00 AM EDT

Current conditions at

Brandywine Regional Airport (KOQN)

Lat: 39.99°NLon: 75.58°WElev: 465ft.

Fair

50°F

10°C

Humidity	71%
Wind Speed	N 7 mph
Barometer	30.37 in
Dewpoint	41°F (5°C)
Visibility	10.00 mi
Wind Chill	47°F (8°C)
Last update	9 Oct 5:35 am EDT

More Information:

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

Extended Forecast for

3 Miles SE Downingtown PA

Frost Advisory October 10, 02:00am until October 10, 09:00am

Click here for hazard details and duration

Frost Advisory

Today
High: 63 °F
Sunny
Tonight
Low: 36 °F
Clear then
Areas Frost
Friday
High: 64 °F
Areas Frost
then Sunny
Friday Night
Low: 45 °F
Partly Cloudy
Saturday
High: 69 °F
Partly Sunny
then Slight
Chance
Showers
Saturday Night
Low: 53 °F
Chance
Showers
Sunday
High: 62 °F
Showers
Likely and
Breezy
Sunday Night
Low: 49 °F
Showers
Likely and
Breezy
Columbus Day
High: 60 °F
Chance
Showers and
Breezy

Detailed Forecast

Today

Sunny, with a high near 63. North wind 5 to 10 mph.

Tonight

Areas of frost after 5am. Otherwise, clear, with a low around 36. Calm wind.

Friday

Areas of frost before 8am. Otherwise, sunny, with a high near 64. Calm wind becoming southeast around 5 mph in the morning.

Friday Night

Partly cloudy, with a low around 45. South wind around 5 mph becoming calm.

Saturday

A slight chance of showers after 2pm. Partly sunny, with a high near 69. Light northeast wind becoming east 5 to 10 mph in the morning. Chance of precipitation is 20%.

Saturday Night

A chance of showers, mainly after 8pm. Mostly cloudy, with a low around 53. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday

Showers likely. Mostly cloudy, with a high near 62. Breezy. Chance of precipitation is 60%.

Sunday Night

Showers likely. Mostly cloudy, with a low around 49. Breezy. Chance of precipitation is 60%.

Columbus Day

A chance of showers. Mostly cloudy, with a high near 60. Breezy. Chance of precipitation is 50%.

Monday Night

A chance of showers before 2am. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.

Tuesday

Mostly sunny, with a high near 67.

Tuesday Night

Partly cloudy, with a low around 51.