Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

Overcast

67°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 30.08 in (1018.0 mb)
Dewpoint 67°F (19°C)
Visibility NA
Last update 29 Jun 5:54 am EDT
Extended Forecast for

Malvern PA

Extreme Heat Watch July 1, 12:00pm until July 4, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch
  • Today

    Today: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 87. Calm wind becoming northeast around 5 mph.

    High: 87 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 65. South wind around 5 mph.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Light southwest wind becoming south 5 to 10 mph in the morning.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 2am.  Mostly clear, with a low around 70. South wind 5 to 10 mph.  Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 95. Southwest wind 5 to 10 mph.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 87. Calm wind becoming northeast around 5 mph.
Tonight
Mostly clear, with a low around 65. South wind around 5 mph.
Tuesday
Sunny, with a high near 88. Light southwest wind becoming south 5 to 10 mph in the morning.
Tuesday Night
A slight chance of showers and thunderstorms before 2am. Mostly clear, with a low around 70. South wind 5 to 10 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 95. Southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny and hot, with a high near 100.
Thursday Night
Mostly clear, with a low around 78.
Friday
Sunny and hot, with a high near 101.
Friday Night
Partly cloudy, with a low around 77.
Independence Day
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Malvern PA
 40.04°N 75.52°W (Elev. 358 ft)
4:07 am EDT Jun 29, 2026
6am EDT Jun 29, 2026-6pm EDT Jul 5, 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