Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fair

73°F

23°C

Humidity 62%
Wind Speed E 5 mph
Barometer 30.24 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 24 Jul 9:55 am EDT
Extended Forecast for

2 Miles WSW Unionville PA

  • Today

    Today: Mostly sunny, with a high near 82. Southeast wind around 5 mph.

    High: 82 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. South wind around 5 mph becoming calm  in the evening.

    Low: 58 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 82. East wind around 5 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60. Southeast wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 84. Calm wind becoming north around 5 mph.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 85. Chance of precipitation is 40%.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 66. Chance of precipitation is 50%.

    Low: 66 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 84. Chance of precipitation is 70%.

    High: 84 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 82. Southeast wind around 5 mph.
Tonight
Mostly cloudy, with a low around 58. South wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 82. East wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 60. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 84. Calm wind becoming north around 5 mph.
Sunday Night
Partly cloudy, with a low around 64.
Monday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Unionville PA
 39.89°N 75.78°W (Elev. 449 ft)
5:07 am EDT Jul 24, 2026
10am EDT Jul 24, 2026-6pm EDT Jul 30, 2026
 
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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