Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fair

27°F

-3°C

Humidity 36%
Wind Speed S 6 mph
Barometer 30.20 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 9 Dec 11:15 am EST
Extended Forecast for

Coatesville PA

  • Today

    Today: Mostly sunny, with a high near 32. South wind around 5 mph.

    High: 32 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Southwest wind 5 to 10 mph.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain, snow, and freezing rain before 10am, then rain likely.  Mostly cloudy, with a high near 41. South wind 10 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%. Little or no ice accumulation expected.  New snow accumulation of less than a half inch possible.

    High: 41 °F

    Chance Wintry
    Mix then Rain
    Likely

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 10pm.  Cloudy, then gradually becoming partly cloudy, with a low around 28. Southwest wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 36. West wind around 15 mph, with gusts as high as 30 mph.

    High: 36 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of snow.  Mostly cloudy, with a low around 25. Chance of precipitation is 40%.

    Low: 25 °F

    Chance Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 37.

    High: 37 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 32. South wind around 5 mph.
Tonight
Mostly cloudy, with a low around 27. Southwest wind 5 to 10 mph.
Wednesday
A chance of rain, snow, and freezing rain before 10am, then rain likely. Mostly cloudy, with a high near 41. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Wednesday Night
A slight chance of rain before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 28. Southwest wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 36. West wind around 15 mph, with gusts as high as 30 mph.
Thursday Night
Partly cloudy, with a low around 24.
Friday
Mostly sunny, with a high near 36.
Friday Night
A chance of snow. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.
Saturday
Mostly cloudy, with a high near 37.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 31.
Sunday Night
Mostly clear, with a low around 14.
Monday
Mostly sunny, with a high near 27.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Coatesville PA
 39.99°N 75.82°W (Elev. 400 ft)
5:46 am EST Dec 9, 2025
11am EST Dec 9, 2025-6pm EST Dec 15, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database