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Fire Weather Issues; Pacific System Moving Inland

Dry fuels, strong winds and dry weather will continue to bring elevated to critical fire weather conditions to the areas of the Plains, Midwest and Southeast today. A Pacific storm system will bring low elevation rain and heavy high elevation mountain snow to California through early week, expanding into the Pacific Northwest, Great Basin, and southern California on Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Mostly Cloudy

37°F

3°C

Humidity 46%
Wind Speed W 18 G 26 mph
Barometer 30.22 in (1025.1 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 20 Apr 12:54 pm EDT
Extended Forecast for

South Fork PA

Freeze Warning April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Warning

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 43. Northwest wind around 11 mph, with gusts as high as 23 mph.

    High: 43 °F

    Partly Sunny

  • Tonight

    Tonight: Widespread frost after 2am. Otherwise, mostly clear, with a low around 26. Northwest wind around 6 mph becoming calm in the evening.

    Low: 26 °F

    Mostly Clear
    then Frost

  • Tuesday

    Tuesday: Widespread frost before 9am. Otherwise, increasing clouds, with a high near 61. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 61 °F

    Frost then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms, then showers likely after 2am. Mostly cloudy, with a low around 49. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 66. West wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 46. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 30%.

    High: 76 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Partly sunny, with a high near 43. Northwest wind around 11 mph, with gusts as high as 23 mph.
Tonight
Widespread frost after 2am. Otherwise, mostly clear, with a low around 26. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Widespread frost before 9am. Otherwise, increasing clouds, with a high near 61. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms, then showers likely after 2am. Mostly cloudy, with a low around 49. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 66. West wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 46. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 51.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Saturday
Showers likely. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Sunday
A chance of showers. Partly sunny, with a high near 63. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Fork PA
 40.37°N 78.8°W (Elev. 1572 ft)
Last Update:
1:51 pm EDT Apr 20, 2026
Forecast Valid:
1pm EDT Apr 20, 2026-6pm EDT Apr 26, 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