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

Hazardous Weather Conditions

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

Fog/Mist

36°F

2°C

Humidity 97%
Wind Speed Calm
Barometer 29.86 in (1011.2 mb)
Dewpoint 35°F (2°C)
Visibility 1.75 mi
Last update 18 Feb 10:54 am EST
Extended Forecast for

Collegeville PA

  • Today

    Today: Rain likely, mainly after 4pm. Patchy fog before 4pm. Otherwise, cloudy, with a high near 45. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Rain Likely
    and Patchy
    Fog

  • Tonight

    Tonight: A chance of rain, mainly before 8pm. Patchy fog. Otherwise, cloudy, with a low around 36. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Chance Rain
    and Patchy
    Fog then
    Patchy Fog

  • Thursday

    Thursday: A chance of rain after 1pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 42. East wind around 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Patchy Fog
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 35. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 35 °F

    Rain

  • Friday

    Friday: Rain, mainly before 1pm. High near 45. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Rain

  • Friday Night

    Friday Night: A slight chance of rain before 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain and snow after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Partly Cloudy
    then Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain and snow before 1pm, then snow likely. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.

    High: 38 °F

    Rain/Snow
    Likely

Detailed Forecast

Today
Rain likely, mainly after 4pm. Patchy fog before 4pm. Otherwise, cloudy, with a high near 45. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of rain, mainly before 8pm. Patchy fog. Otherwise, cloudy, with a low around 36. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of rain after 1pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 42. East wind around 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain. Low around 35. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain, mainly before 1pm. High near 45. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A slight chance of rain before 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
A chance of rain and snow after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Sunday
A chance of rain and snow before 1pm, then snow likely. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
Monday
A chance of snow. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Mostly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Collegeville PA
 40.17°N 75.46°W (Elev. 98 ft)
Last Update:
7:34 am EST Feb 18, 2026
Forecast Valid:
11am EST Feb 18, 2026-6pm EST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation