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

36°F

2°C

Humidity 100%
Wind Speed Calm
Barometer 29.66 in (1004.4 mb)
Dewpoint 36°F (2°C)
Visibility 0.25 mi
Last update 7 Jan 1:54 am EST
Extended Forecast for

3 Miles NNE Saint Peters PA

Dense Fog Advisory until January 7, 08:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until January 7, 08:00am

    NOW until 8:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 35 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Wednesday

    Wednesday: Partly sunny, with a high near 48. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 48 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 48. West wind around 5 mph becoming calm in the afternoon.

    High: 48 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 36. Calm wind becoming southeast around 5 mph after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely. Cloudy, with a high near 55. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely, mainly after 1am. Cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers. High near 55. Chance of precipitation is 90%.

    High: 55 °F

    Showers

Detailed Forecast

Overnight
A slight chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 35. Calm wind becoming west around 5 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 48. West wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly cloudy, with a low around 33. West wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 48. West wind around 5 mph becoming calm in the afternoon.
Thursday Night
Mostly cloudy, with a low around 36. Calm wind becoming southeast around 5 mph after midnight.
Friday
Showers likely. Cloudy, with a high near 55. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers likely, mainly after 1am. Cloudy, with a low around 48. Chance of precipitation is 60%.
Saturday
Showers. High near 55. Chance of precipitation is 90%.
Saturday Night
Showers likely, mainly before 1am. Cloudy, with a low around 39. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Saint Peters PA
 40.2°N 75.78°W (Elev. 499 ft)
Last Update:
12:23 am EST Jan 7, 2026
Forecast Valid:
2am EST Jan 7, 2026-6pm EST Jan 13, 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