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.

Light Snow Fog/Mist

27°F

-3°C

Humidity 96%
Wind Speed NA
Barometer 29.94 in (1013.9 mb)
Dewpoint 26°F (-3°C)
Visibility 0.75 mi
Last update 18 Jan 6:54 pm EST
Extended Forecast for

3 Miles NNE Saint Peters PA

Winter Weather Advisory January 18, 07:42pm until January 18, 08:00pm
Click here for hazard details and duration
...
  •  
    Winter Weather Advisory January 18, 07:42pm until January 18, 08:00pm

    NOW until 8:00pm Sun

    Winter Weather Advisory

  • Tonight

    Low: 16 °F

    Slight Chance
    Snow then
    Mostly Clear

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 32. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 32 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 12. Wind chill values as low as zero. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 20. Wind chill values as low as -2. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 20 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 7. West wind around 5 mph becoming calm after midnight.

    Low: 7 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

Detailed Forecast

Tonight
A slight chance of snow before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 16. West wind 5 to 10 mph. Chance of precipitation is 20%.
M.L.King Day
Mostly sunny, with a high near 32. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 12. Wind chill values as low as zero. West wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 20. Wind chill values as low as -2. West wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 7. West wind around 5 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 31.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Partly sunny, with a high near 37.
Thursday Night
Mostly clear, with a low around 15.
Friday
Mostly sunny, with a high near 29.
Friday Night
Partly cloudy, with a low around 17.
Saturday
A chance of snow. Partly sunny, with a high near 27. Chance of precipitation is 30%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 30%.
Sunday
A chance of snow. Partly sunny, with a high near 20. Chance of precipitation is 40%.
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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:
4:12 pm EST Jan 18, 2026
Forecast Valid:
7pm EST Jan 18, 2026-6pm EST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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