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.

Overcast

15°F

-9°C

Humidity 77%
Wind Speed W 7 mph
Barometer 29.81 in (1013.2 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 3 Jan 12:54 am EST
Extended Forecast for

South Fork PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 14. West wind around 6 mph.

    Low: 14 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 25. West wind 3 to 6 mph.

    High: 25 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A slight chance of snow showers between midnight and 3am. Mostly cloudy, with a low around 18. Light west wind. Chance of precipitation is 20%.

    Low: 18 °F

    Slight Chance
    Snow Showers

  • Sunday

    Sunday: Mostly cloudy, with a high near 26. West wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 26 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 16. West wind around 6 mph becoming calm in the evening.

    Low: 16 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers after 1pm. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.

    High: 46 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 40%.

    Low: 37 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 14. West wind around 6 mph.
Saturday
Mostly cloudy, with a high near 25. West wind 3 to 6 mph.
Saturday Night
A slight chance of snow showers between midnight and 3am. Mostly cloudy, with a low around 18. Light west wind. Chance of precipitation is 20%.
Sunday
Mostly cloudy, with a high near 26. West wind 6 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 16. West wind around 6 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 36.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
A chance of showers after 1pm. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.
Tuesday Night
A chance of showers before 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 40%.
Wednesday
A chance of showers before 1pm. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
A chance of showers. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 50%.
Friday
Showers likely. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Fork PA
 40.35°N 78.78°W (Elev. 1683 ft)
Last Update:
1:05 am EST Jan 3, 2026
Forecast Valid:
1am EST Jan 3, 2026-6pm EST Jan 9, 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