Severe Thunderstorms and Heavy Rainfall Across the Midwest into the Great Lakes Region; Significant Heat in the Southwest

Strong to severe storms may produce damaging winds, isolated hail, and a few tornadoes from the Midwest into the lower Great Lakes. These storms may also produce areas of heavy rain and flash flooding. Significant heat will continue across parts of the Desert Southwest into western Texas and north Alaska. Dangerous heat will also build into the Eastern and Central U.S. and continue into next week. Read More >

Current conditions at

Brandywine Regional Airport (KOQN)

Lat: 39.99°NLon: 75.58°WElev: 465ft.

Fair

81°F

27°C

Humidity 74%
Wind Speed W 5 mph
Barometer 29.87 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 18 Jun 7:15 pm EDT
Extended Forecast for

2 Miles NNW West Chester PA

Heat Advisory June 19, 11:00am until June 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 70. Southwest wind around 5 mph.  Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Juneteenth

    Juneteenth: Showers and thunderstorms likely, mainly between 4pm and 5pm.  Sunny, with a high near 90. Southwest wind 5 to 15 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Sunny then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, mainly before 8pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 65. Southwest wind around 10 mph.  Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 82. Northwest wind around 10 mph.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64. West wind around 5 mph becoming calm.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 70. Southwest wind around 5 mph. Chance of precipitation is 20%.
Juneteenth
Showers and thunderstorms likely, mainly between 4pm and 5pm. Sunny, with a high near 90. Southwest wind 5 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 65. Southwest wind around 10 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 82. Northwest wind around 10 mph.
Friday Night
Mostly clear, with a low around 64. West wind around 5 mph becoming calm.
Saturday
Sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
Mostly sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 72.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 73.
Tuesday
Sunny, with a high near 95.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW West Chester PA
 39.99°N 75.62°W (Elev. 400 ft)
6:16 pm EDT Jun 18, 2025
7pm EDT Jun 18, 2025-6pm EDT Jun 25, 2025
 
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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