Severe Thunderstorms and Heavy Rain from the Plains to the Mid-Atlantic; Ongoing Heat in the South

Severe thunderstorms and showers pose a risk for excessive rain, localized flash flooding, strong gusts and/or large hail across portions of the northern and central Plains, the Lower Missouri to Lower Ohio Valleys, and across the Mid-Atlantic this afternoon and evening. Extreme heat is ongoing over the Desert Southwest and the Southeast U.S.. Read More >

Hazardous Weather Conditions

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fog/Mist

75°F

24°C

Humidity 100%
Wind Speed SE 5 mph
Barometer 29.90 in
Dewpoint 75°F (24°C)
Visibility 4.00 mi
Last update 9 Jul 2:35 pm EDT
Extended Forecast for

West Chester PA

Flood Watch July 9, 02:49pm until July 10, 12:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 9, 02:49pm until July 10, 12:00am

    NOW until 12:00am Fri

    Flood Watch

  • This Afternoon

    High: 82 °F

    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 8pm.  Patchy fog after midnight.  Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 70. South wind around 5 mph becoming west after midnight.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 70 °F

    T-storms
    Likely then
    Patchy Fog

  • Friday

    Friday: A slight chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm.  Patchy fog before 9am.  Otherwise, partly sunny, with a high near 88. West wind 5 to 10 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Patchy Fog
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 69. West wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 11am.  Partly sunny, with a high near 83. North wind around 5 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of thunderstorms before 8pm.  Partly cloudy, with a low around 66. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers and thunderstorms. High near 82. Southwest wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Tonight
Showers and thunderstorms likely, mainly before 8pm. Patchy fog after midnight. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 70. South wind around 5 mph becoming west after midnight. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A slight chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 88. West wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 83. North wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 63.
Monday
Mostly sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
West Chester PA
 39.96°N 75.59°W (Elev. 400 ft)
2:36 pm EDT Jul 9, 2026
2pm EDT Jul 9, 2026-6pm EDT Jul 15, 2026
 
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Additional Resources

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Hourly Weather Forecast

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