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

58°F

14°C

Humidity 87%
Wind Speed SW 7 mph
Barometer 29.97 in (1013.8 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 11 Mar 1:54 am EDT
Extended Forecast for

Johnstown-Cambria County Airport PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 59. South wind around 6 mph.

    Low: 59 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Some of the storms could be severe. High near 72. Southwest wind 9 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 72 °F

    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Rain showers before 5am, then rain and snow showers likely. Some thunder is also possible. Low around 31. Breezy, with a west wind 18 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Breezy.
    Severe
    Thunderstorms
    then
    Rain/Snow

  • Thursday

    Thursday: Snow showers likely, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 39. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Breezy. Snow
    Showers
    Likely then
    Slight Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. Northwest wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers after 2pm. Mostly cloudy, with a high near 50. Breezy. Chance of precipitation is 30%.

    High: 50 °F

    Mostly Cloudy
    then Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers before 8pm. Partly cloudy, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 59. South wind around 6 mph.
Wednesday
Showers and possibly a thunderstorm. Some of the storms could be severe. High near 72. Southwest wind 9 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Rain showers before 5am, then rain and snow showers likely. Some thunder is also possible. Low around 31. Breezy, with a west wind 18 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Thursday
Snow showers likely, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 39. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
Mostly clear, with a low around 29. Northwest wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Friday
A chance of showers after 2pm. Mostly cloudy, with a high near 50. Breezy. Chance of precipitation is 30%.
Friday Night
A chance of showers before 8pm. Partly cloudy, with a low around 30. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
A chance of showers after 2pm. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.
Sunday Night
Showers. Low around 34. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 45. Chance of precipitation is 80%.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 17. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown-Cambria County Airport PA
 40.33°N 78.84°W (Elev. 2116 ft)
Last Update:
2:06 am EDT Mar 11, 2026
Forecast Valid:
2am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation