A major winter storm is expected to impact the area late this weekend.

A major winter storm is expected to begin impacting the area Saturday night, continuing through early Monday afternoon. Significant snow accumulations are possible areawide. Some mixed precipitation is expected across the I-95 corridor southward into the Delmarva. View this briefing for details. Read More >

Hazardous Weather Conditions

Cold Weather Advisory in effect from January 23, 10:00 PM EST until January 24, 10:00 AM EST
Winter Storm Warning in effect from January 24, 07:00 PM EST until January 26, 01:00 PM EST

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Mostly Cloudy

34°F

1°C

Humidity	37%
Wind Speed	Vrbl 7 mph
Barometer	30.12 in
Dewpoint	10°F (-12°C)
Visibility	10.00 mi
Wind Chill	28°F (-2°C)
Last update	23 Jan 1:55 pm EST

More Information:

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

Extended Forecast for

2 Miles SE Downingtown PA

Cold Weather Advisory January 23, 10:00pm until January 24, 10:00am

Winter Storm Warning January 24, 07:00pm until January 26, 01:00pm

Click here for hazard details and duration

Cold Weather Advisory

Winter Storm Warning

This Afternoon
High: 35 °F
Mostly Cloudy
and Breezy
Tonight
Low: 6 °F
Partly Cloudy
and Blustery
then Mostly
Clear
Saturday
High: 18 °F
Partly Sunny
Saturday Night
Low: 12 °F
Slight Chance
Snow then
Snow
Sunday
High: 24 °F
Heavy Snow
then Wintry
Mix
Sunday Night
Low: 19 °F
Wintry Mix
Monday
High: 27 °F
Snow Likely
Monday Night
Low: 5 °F
Partly Cloudy
Tuesday
High: 17 °F
Mostly Sunny

Detailed Forecast

This Afternoon

Mostly cloudy, with a high near 35. Breezy, with a northwest wind 15 to 20 mph.

Tonight

Partly cloudy, with a low around 6. Wind chill values as low as -7. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.

Saturday

Partly sunny, with a high near 18. Wind chill values as low as -9. North wind 5 to 10 mph.

Saturday Night

Snow, mainly after 1am. Low around 12. Calm wind becoming northeast around 5 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Sunday

Snow before 1pm, then snow, freezing rain, and sleet. The snow could be heavy at times. High near 24. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New ice accumulation of 0.1 to 0.2 of an inch possible. New snow and sleet accumulation of 7 to 11 inches possible.

Sunday Night

Snow and sleet before 1am, then freezing rain and sleet likely between 1am and 4am, then snow likely after 4am. Low around 19. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Monday

Snow likely, mainly before 7am. Partly sunny, with a high near 27. Chance of precipitation is 60%.

Monday Night

Partly cloudy, with a low around 5.

Tuesday

Mostly sunny, with a high near 17.

Tuesday Night

Partly cloudy, with a low around 5.

Wednesday

Mostly sunny, with a high near 19.

Wednesday Night

Mostly cloudy, with a low around 5.