Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

Fair

64°F

18°C

Humidity 75%
Wind Speed Calm
Barometer 30.23 in (1023.2 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 29 Aug 8:54 pm EDT
Extended Forecast for

Malvern PA

  • Tonight

    Tonight: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers between 1pm and 5pm, then a chance of showers and thunderstorms after 5pm.  Patchy fog between 7am and 8am.  Otherwise, mostly sunny, with a high near 85. Southwest wind 5 to 10 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Patchy Fog
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 68. South wind around 5 mph.  Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers after 2pm.  Partly sunny, with a high near 85. North wind around 5 mph becoming northwest in the afternoon.  Chance of precipitation is 20%.

    High: 85 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly between 8pm and 2am.  Mostly cloudy, with a low around 70. West wind around 5 mph becoming calm.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 70 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 88. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 72. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Partly sunny, with a high near 89.

    High: 89 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms between 8pm and 2am.  Mostly cloudy, with a low around 71. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 62. Calm wind.
Sunday
A slight chance of showers between 1pm and 5pm, then a chance of showers and thunderstorms after 5pm. Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 85. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A slight chance of showers after 2pm. Partly sunny, with a high near 85. North wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 20%.
Monday Night
A chance of showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 70. West wind around 5 mph becoming calm. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 89.
Wednesday Night
A chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Thursday
A chance of showers after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Malvern PA
 40.02°N 75.55°W (Elev. 499 ft)
4:09 pm EDT Aug 29, 2026
9pm EDT Aug 29, 2026-6pm EDT Sep 5, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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