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

Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies; Heavy Rain in Guam

A storm system moving over the Rockies today will bring marginal risks for excessive rainfall and severe thunderstorms from parts of New Mexico into western South Dakota. Heavy snow expected from northwestern Wyoming into southern Montana. Ongoing heavy showers and thunderstorms from Invest 96W could result in localized flash flooding, particularly in central or southern Guam early this morning. Read More >

Current conditions at

Brandywine Regional Airport (KOQN)

Lat: 39.99°NLon: 75.58°WElev: 465ft.

Fair

63°F

17°C

Humidity 52%
Wind Speed NW 9 mph
Barometer 29.96 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 15 Oct 6:15 pm EDT
Extended Forecast for

4 Miles W West Chester PA

  • Tonight

    Tonight: Clear, with a low around 40. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 59. North wind 10 to 15 mph.

    High: 59 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 38. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 61. North wind 5 to 10 mph.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 39. Northwest wind around 5 mph becoming calm.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Showers likely after 8pm. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.

    Low: 50 °F

    Showers
    Likely

Detailed Forecast

Tonight
Clear, with a low around 40. North wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 59. North wind 10 to 15 mph.
Thursday Night
Clear, with a low around 38. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 61. North wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 39. Northwest wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Partly sunny, with a high near 71.
Sunday Night
Showers likely after 8pm. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Monday
A chance of showers. Partly sunny, with a high near 62. Chance of precipitation is 40%.
Monday Night
A chance of showers. Partly cloudy, with a low around 46. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W West Chester PA
 39.95°N 75.68°W (Elev. 299 ft)
Last Update:
4:09 pm EDT Oct 15, 2025
Forecast Valid:
6pm EDT Oct 15, 2025-6pm EDT Oct 22, 2025
 
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