Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Light Rain Fog/Mist Thunderstorm in Vicinity

71°F

22°C

Humidity 100%
Wind Speed W 7 mph
Barometer 30.00 in
Dewpoint 71°F (22°C)
Visibility 5.00 mi
Last update 27 Aug 4:35 pm EDT
Extended Forecast for

Oxford PASimilar City Names

Flood Watch until August 28, 04:00am
Severe T-storm Watch August 27, 04:52pm until August 27, 08:00pm
Click here for hazard details and duration
Flood Watch
Severe T-storm Watch
  •  
    Flood Watch until August 28, 04:00am
    Severe T-storm Watch August 27, 04:52pm until August 27, 08:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 83 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 11pm.  Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Showers
    Likely

  • Friday

    Friday: A slight chance of showers and thunderstorms after 3pm.  Partly sunny, with a high near 82. Calm wind becoming north around 5 mph.  Chance of precipitation is 20%.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 63. Calm wind becoming north around 5 mph.

    Low: 63 °F

    Decreasing
    Clouds

  • Saturday

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

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 83. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 82. Calm wind becoming north around 5 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 63. Calm wind becoming north around 5 mph.
Saturday
Sunny, with a high near 82. North wind around 5 mph.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Mostly sunny, with a high near 87.
Monday Night
Mostly cloudy, with a low around 70.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 87. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
Thursday
A chance of showers. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Oxford PASimilar City Names
 39.78°N 75.97°W (Elev. 495 ft)
4:08 pm EDT Aug 27, 2026
4pm EDT Aug 27, 2026-6pm EDT Sep 3, 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