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

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Fair

40°F

4°C

Humidity 79%
Wind Speed W 6 mph
Barometer 30.05 in (1018.7 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 9 Nov 10:54 pm EST
Extended Forecast for

South Fork PA

  • Tonight

    Tonight: Partly cloudy, with a low around 38. West wind around 6 mph.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 59. West wind 9 to 15 mph, with gusts as high as 30 mph.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 36. West wind 5 to 7 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 60. Calm wind becoming west around 5 mph.

    High: 60 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 42. Calm wind. Chance of precipitation is 30%.

    Low: 42 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain. High near 51. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Rain

  • Thursday Night

    Thursday Night: Rain showers likely before 4am, then rain and snow showers likely. Cloudy, with a low around 33. Chance of precipitation is 70%.

    Low: 33 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Friday

    Friday: Rain and snow showers likely, becoming all snow after 10am. Cloudy, with a high near 40. Chance of precipitation is 60%.

    High: 40 °F

    Rain/Snow
    Likely then
    Snow Showers
    Likely

  • Friday Night

    Friday Night: A chance of snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.

    Low: 29 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 38. West wind around 6 mph.
Tuesday
Sunny, with a high near 59. West wind 9 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 36. West wind 5 to 7 mph becoming calm in the evening.
Veterans Day
Partly sunny, with a high near 60. Calm wind becoming west around 5 mph.
Wednesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 42. Calm wind. Chance of precipitation is 30%.
Thursday
Rain. High near 51. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain showers likely before 4am, then rain and snow showers likely. Cloudy, with a low around 33. Chance of precipitation is 70%.
Friday
Rain and snow showers likely, becoming all snow after 10am. Cloudy, with a high near 40. Chance of precipitation is 60%.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.
Saturday
A chance of snow showers before 1pm. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Partly sunny, with a high near 42.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
Partly sunny, with a high near 50.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Fork PA
 40.37°N 78.8°W (Elev. 1572 ft)
Last Update:
7:06 pm EST Nov 9, 2026
Forecast Valid:
11pm EST Nov 9, 2026-6pm EST Nov 16, 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