National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

A Few Clouds

84°F

29°C

Humidity 55%
Wind Speed Vrbl 5 mph
Barometer 30.13 in (1019.8 mb)
Dewpoint 66°F (19°C)
Visibility NA
Heat Index86°F (30°C)
Last update 29 Jun 12:54 pm EDT
Extended Forecast for

Phoenixville PA

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

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 88. Calm wind becoming east around 5 mph.

    High: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 65. South wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 2am. Partly cloudy, 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 96. Southwest wind 5 to 10 mph.

    High: 96 °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 101.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 88. Calm wind becoming east around 5 mph.
Tonight
Mostly clear, with a low around 65. South wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the morning.
Tuesday Night
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 70. South wind 5 to 10 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 96. Southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny and hot, with a high near 101.
Thursday Night
Mostly clear, with a low around 77.
Friday
Sunny and hot, with a high near 102.
Friday Night
Partly cloudy, with a low around 76.
Independence Day
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 99. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 50%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Phoenixville PA
 40.13°N 75.5°W (Elev. 108 ft)
Last Update:
4:07 am EDT Jun 29, 2026
Forecast Valid:
1pm EDT Jun 29, 2026-6pm EDT Jul 5, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation