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

Dangerous Heat and Humidity Through Saturday

Dangerously hot and humid conditions are expected to continue through Saturday. Additionally, there will be a threat of thunderstorms through Sunday. View this briefing for details. Read More >

Hazardous Weather Conditions

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

Partly Cloudy

99°F

37°C

Humidity 35%
Wind Speed Vrbl 7 G 20 mph
Barometer 29.94 in (1013.1 mb)
Dewpoint 67°F (19°C)
Visibility NA
Heat Index104°F (40°C)
Last update 3 Jul 5:54 pm EDT
Extended Forecast for

Phoenixville PA

Severe T-storm Watch until July 3, 11:00pm
Extreme Heat Warning July 3, 05:57pm until July 4, 08:00pm
Click here for hazard details and duration
Severe T-storm Watch
Extreme Heat Warning
  •  
    Severe T-storm Watch until July 3, 11:00pm
    Extreme Heat Warning July 3, 05:57pm until July 4, 08:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 102 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 7pm. Some of the storms could be severe. Partly cloudy, with a low around 76. West wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 76 °F

    Severe
    Thunderstorms
    then Partly
    Cloudy

  • Independence Day

    Independence Day: A chance of showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 103. Northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 98 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 1am, then a slight chance of thunderstorms after 4am. Mostly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 89. Calm wind becoming northeast 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.

    High: 89 °F

    Slight Chance
    T-storms then
    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 70. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 70 °F

    Showers

  • Monday

    Monday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 79. Chance of precipitation is 80%.

    High: 79 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.

    Low: 66 °F

    Showers

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms. Some of the storms could be severe. Mostly sunny and hot, with a high near 102. Heat index values as high as 109. West wind around 15 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms, mainly before 7pm. Some of the storms could be severe. Partly cloudy, with a low around 76. West wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Independence Day
A chance of showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 103. Northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms likely, mainly before 1am, then a slight chance of thunderstorms after 4am. Mostly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 89. Calm wind becoming northeast 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.
Sunday Night
Showers and possibly a thunderstorm. Low around 70. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Monday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 79. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.
Tuesday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Phoenixville PA
 40.13°N 75.53°W (Elev. 157 ft)
Last Update:
4:08 pm EDT Jul 3, 2026
Forecast Valid:
5pm EDT Jul 3, 2026-6pm EDT Jul 10, 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