Severe Weather and Heavy Rain from the Mid-South to the Mid-Atlantic; Building Heat in the West

Severe thunderstorms may bring damaging winds, a couple of tornadoes, and heavy rain across portions of the Mid-Atlantic into the Mid-South. Severe storms may produce hail across the northern/central High Plains. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Fire weather concerns continue for Interior Alaska and the Four Corners region. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Mostly Cloudy

83°F

28°C

Humidity 64%
Wind Speed SW 7 G 21 mph
Barometer 29.86 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 22 Jun 4:15 pm EDT
Extended Forecast for

Coatesville PA

Flood Watch June 22, 04:29pm until June 23, 06:00am
Severe T-storm Watch until June 22, 09:00pm
Severe T-storm Warning until June 22, 05:00pm
Click here for hazard details and duration
Flood Watch
Severe T-storm Watch
Severe T-storm Warning
  •  
    Flood Watch June 22, 04:29pm until June 23, 06:00am
    Severe T-storm Watch until June 22, 09:00pm
    Severe T-storm Warning until June 22, 05:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 85 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly before midnight, then a chance of showers and thunderstorms after midnight. Some of the storms could be severe and produce heavy rainfall.  Low around 68. South wind around 5 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms.  Mostly cloudy, with a high near 75. West wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    High: 75 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming clear, with a low around 57. North wind around 10 mph.

    Low: 57 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 81. Northwest wind 5 to 10 mph.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 85. Chance of precipitation is 30%.

    High: 85 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am.  Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Some of the storms could be severe and produce heavy rainfall. High near 85. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm, mainly before midnight, then a chance of showers and thunderstorms after midnight. Some of the storms could be severe and produce heavy rainfall. Low around 68. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 75. West wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Mostly cloudy, then gradually becoming clear, with a low around 57. North wind around 10 mph.
Wednesday
Sunny, with a high near 81. Northwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Friday
A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Saturday
Showers and thunderstorms likely. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 65.
Monday
Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Coatesville PA
 39.99°N 75.82°W (Elev. 400 ft)
4:12 pm EDT Jun 22, 2026
4pm EDT Jun 22, 2026-6pm EDT Jun 29, 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