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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

Rain Fog/Mist

40°F

4°C

Humidity 100%
Wind Speed E 3 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 40°F (4°C)
Visibility 5.00 mi
Last update 10 Jan 3:54 pm EST
Extended Forecast for

Harleysville PA

  • This Afternoon

    This Afternoon: Rain. High near 43. East wind around 10 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Rain

  • Tonight

    Tonight: Rain, mainly before 1am. Patchy fog after 7pm. Low around 37. East wind around 5 mph becoming calm. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Rain and
    Patchy Fog
    then Slight
    Chance Rain
    and Patchy
    Fog

  • Sunday

    Sunday: Scattered rain and snow showers after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 42. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 42 °F

    Mostly Sunny
    then
    Scattered
    Rain/Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 28 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 41. West wind 10 to 15 mph.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain after 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 30%.

    High: 47 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

This Afternoon
Rain. High near 43. East wind around 10 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain, mainly before 1am. Patchy fog after 7pm. Low around 37. East wind around 5 mph becoming calm. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Scattered rain and snow showers after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 42. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday Night
Partly cloudy, with a low around 28. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Monday
Sunny, with a high near 41. West wind 10 to 15 mph.
Monday Night
Mostly clear, with a low around 28.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
A chance of rain after 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Thursday
Mostly cloudy, with a high near 35.
Thursday Night
Partly cloudy, with a low around 18.
Friday
Mostly sunny, with a high near 33.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 37.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harleysville PA
 40.27°N 75.39°W (Elev. 299 ft)
Last Update:
3:14 pm EST Jan 10, 2026
Forecast Valid:
4pm EST Jan 10, 2026-6pm EST Jan 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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