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.

Mostly Cloudy

27°F

-3°C

Humidity 61%
Wind Speed NW 13 mph
Barometer 30.24 in (1026.6 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 23 Mar 9:54 pm EDT
Extended Forecast for

South Fork PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 22. Northwest wind 8 to 14 mph, with gusts as high as 28 mph.

    Low: 22 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 48. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 48 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 58. Calm wind becoming south 5 to 8 mph in the morning.

    High: 58 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 46. South wind around 6 mph.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers after 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 30%.

    High: 68 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers, mainly after 8pm. Low around 40. Chance of precipitation is 90%.

    Low: 40 °F

    Showers

  • Friday

    Friday: A chance of showers before 2pm. Partly sunny, with a high near 48. Chance of precipitation is 40%.

    High: 48 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 22. Northwest wind 8 to 14 mph, with gusts as high as 28 mph.
Tuesday
Sunny, with a high near 48. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 32. Calm wind.
Wednesday
Mostly cloudy, with a high near 58. Calm wind becoming south 5 to 8 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 46. South wind around 6 mph.
Thursday
A chance of showers after 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 30%.
Thursday Night
Showers, mainly after 8pm. Low around 40. Chance of precipitation is 90%.
Friday
A chance of showers before 2pm. Partly sunny, with a high near 48. Chance of precipitation is 40%.
Friday Night
Partly cloudy, with a low around 21.
Saturday
Sunny, with a high near 42.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Fork PA
 40.37°N 78.8°W (Elev. 1572 ft)
Last Update:
10:12 pm EDT Mar 23, 2026
Forecast Valid:
10pm EDT Mar 23, 2026-6pm EDT Mar 30, 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