National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 possible across southeastern PA, southern NJ, and the Delmarva. View this briefing for details. Read More >

Hazardous Weather Conditions

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fair

44°F

7°C

Humidity 41%
Wind Speed W 12 mph
Barometer 30.02 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 22 Jan 12:15 pm EST
Extended Forecast for

Coatesville PA

Winter Storm Watch January 24, 07:00pm until January 26, 01:00pm
Click here for hazard details and duration
Winter Storm Watch

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 42. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 42 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 22. West wind 5 to 10 mph.

    Low: 22 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 36. West wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 36 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 6. Wind chill values as low as -8. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 6 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 16. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 16 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow, mainly after 1am. The snow could be heavy at times. Low around 10. Chance of precipitation is 90%.

    Low: 10 °F

    Chance Snow
    then Heavy
    Snow

  • Sunday

    Sunday: Snow. High near 20. Chance of precipitation is 100%.

    High: 20 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before 1am. Mostly cloudy, with a low around 17. Chance of precipitation is 60%.

    Low: 17 °F

    Snow Likely

  • Monday

    Monday: A chance of snow before 1pm. Partly sunny, with a high near 23. Chance of precipitation is 30%.

    High: 23 °F

    Chance Snow

Detailed Forecast

This Afternoon
Partly sunny, with a high near 42. West wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 22. West wind 5 to 10 mph.
Friday
Partly sunny, with a high near 36. West wind 5 to 15 mph, with gusts as high as 30 mph.
Friday Night
Partly cloudy, with a low around 6. Wind chill values as low as -8. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday
Partly sunny, with a high near 16. North wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Snow, mainly after 1am. The snow could be heavy at times. Low around 10. Chance of precipitation is 90%.
Sunday
Snow. High near 20. Chance of precipitation is 100%.
Sunday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 17. Chance of precipitation is 60%.
Monday
A chance of snow before 1pm. Partly sunny, with a high near 23. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 3.
Tuesday
Sunny, with a high near 21.
Tuesday Night
Partly cloudy, with a low around 7.
Wednesday
Partly sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Coatesville PA
 39.99°N 75.85°W (Elev. 597 ft)
Last Update:
4:11 am EST Jan 22, 2026
Forecast Valid:
12pm EST Jan 22, 2026-6pm EST Jan 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation