Summer Heat In Multiple Spots

A large dome of high pressure is expected to deliver summer heat with humidity in multiple sections of the country to start off the week. Excessive heat warnings and heat advisories are in effect across the south-central Plains, Mid to Lower Mississippi Valley and from the Mid-Atlantic into the Northeast. This includes the cities of New York, Philadelphia, Dallas, Oklahoma City and Kansas City. Read More >

Hazardous Weather Conditions

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

A Few Clouds

73°F

23°C

Humidity 87%
Wind Speed NE 6 mph
Barometer 30.04 in (1016.9 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 18 Aug 8:54 pm EDT
Extended Forecast for

Collegeville PA

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 11pm. Some of the storms could produce gusty winds and heavy rain.  Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 71. Light south wind.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Heavy Rain
    then Patchy
    Fog

    Low: 71 °F

  • Monday

    Monday: A chance of showers and thunderstorms, mainly after 2pm. Some of the storms could produce heavy rain.  Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 93. Heat index values as high as 100. Calm wind becoming southwest around 6 mph in the afternoon.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Patchy Fog
    then Heavy
    Rain

    High: 93 °F

  • Monday
    Night

    Monday Night: A slight chance of showers and thunderstorms before 2am.  Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 72. West wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Slight Chance
    T-storms and
    Patchy Fog

    Low: 72 °F

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 8am. Some of the storms could produce heavy rain.  Patchy fog before 8am.  Otherwise, partly sunny, with a high near 93. Heat index values as high as 101. Light and variable wind becoming southwest around 6 mph in the afternoon.  Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Heavy Rain
    and Patchy
    Fog

    High: 93 °F

  • Tuesday
    Night

    Tuesday Night: A chance of showers and thunderstorms. Some of the storms could produce heavy rain.  Mostly cloudy, with a low around 72. Light and variable wind.  Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.

    Heavy Rain

    Low: 72 °F

  • Wednesday

    Wednesday: A chance of showers and thunderstorms.  Partly sunny, with a high near 90. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    High: 90 °F

  • Wednesday
    Night

    Wednesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 72. Chance of precipitation is 50%.

    Chance
    T-storms

    Low: 72 °F

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 88. Chance of precipitation is 40%.

    Chance
    Showers then
    Chance
    T-storms

    High: 88 °F

  • Thursday
    Night

    Thursday Night: A chance of thunderstorms before 8pm.  Partly cloudy, with a low around 65. Chance of precipitation is 30%.

    Chance
    T-storms then
    Partly Cloudy

    Low: 65 °F

Detailed Forecast

Tonight
A chance of showers and thunderstorms, mainly before 11pm. Some of the storms could produce gusty winds and heavy rain. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 71. Light south wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers and thunderstorms, mainly after 2pm. Some of the storms could produce heavy rain. Patchy fog before 10am. Otherwise, mostly sunny, with a high near 93. Heat index values as high as 100. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A slight chance of showers and thunderstorms before 2am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 72. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Tuesday
A chance of showers and thunderstorms after 8am. Some of the storms could produce heavy rain. Patchy fog before 8am. Otherwise, partly sunny, with a high near 93. Heat index values as high as 101. Light and variable wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Thursday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Mostly sunny, with a high near 85.
Click Map For Forecast
Point Forecast:
Collegeville PA
 40.19°N 75.46°W (Elev. 200 ft)
6:42 pm EDT Aug 18, 2019
9pm EDT Aug 18, 2019-6pm EDT Aug 25, 2019
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database