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

Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Overcast

61°F

16°C

Humidity 93%
Wind Speed S 14 G 23 mph
Barometer 29.83 in (1009.4 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 11 Mar 10:54 am EDT
Extended Forecast for

South Fork PA

  • Today

    Today: Showers and possibly a thunderstorm before 3pm, then showers and thunderstorms likely after 3pm. Some of the storms could be severe. High near 74. Southwest wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 74 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Rain showers before 5am, then a chance of rain and snow showers. Some thunder is also possible. Low around 32. Southwest wind 15 to 17 mph becoming west after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 32 °F

    Severe
    Thunderstorms
    then
    Rain/Snow

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 40. Northwest wind around 17 mph, with gusts as high as 40 mph.

    High: 40 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. West wind 3 to 8 mph. Winds could gust as high as 20 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of rain after 2pm. Mostly cloudy, with a high near 52. Breezy, with a south wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 20%.

    High: 52 °F

    Mostly Cloudy
    then Slight
    Chance Rain
    and Breezy

  • Friday Night

    Friday Night: A slight chance of rain before 11pm, then a slight chance of snow between 11pm and 2am. Partly cloudy, with a low around 29. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 57. Breezy.

    High: 57 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

Detailed Forecast

Today
Showers and possibly a thunderstorm before 3pm, then showers and thunderstorms likely after 3pm. Some of the storms could be severe. High near 74. Southwest wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Rain showers before 5am, then a chance of rain and snow showers. Some thunder is also possible. Low around 32. Southwest wind 15 to 17 mph becoming west after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 40. Northwest wind around 17 mph, with gusts as high as 40 mph.
Thursday Night
Mostly clear, with a low around 29. West wind 3 to 8 mph. Winds could gust as high as 20 mph.
Friday
A slight chance of rain after 2pm. Mostly cloudy, with a high near 52. Breezy, with a south wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of rain before 11pm, then a slight chance of snow between 11pm and 2am. Partly cloudy, with a low around 29. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Mostly cloudy, with a high near 57. Breezy.
Sunday Night
Showers, mainly after 2am. Low around 36. Breezy. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 49. Breezy. Chance of precipitation is 80%.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 19. Breezy. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 30.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Fork PA
 40.35°N 78.78°W (Elev. 1683 ft)
Last Update:
10:36 am EDT Mar 11, 2026
Forecast Valid:
11am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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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