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.

Fair

57°F

14°C

Humidity 34%
Wind Speed SW 7 mph
Barometer 30.01 in (1015.6 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 10 Mar 1:54 am EDT
Extended Forecast for

Johnstown-Cambria County Airport PA

  • Overnight

    Overnight: Mostly clear, with a low around 51. Southwest wind around 9 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers after 2pm. Mostly sunny, with a high near 69. Southwest wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 69 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 1am, then a slight chance of showers after 5am. Partly cloudy, with a low around 58. South wind 6 to 8 mph. Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms before 11am, then showers between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. Some of the storms could be severe. High near 71. Southwest wind 11 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 71 °F

    Showers then
    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Rain showers before 5am, then rain and snow showers likely. Some thunder is also possible. Low around 32. West wind 15 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 32 °F

    Severe
    Thunderstorms
    then
    Rain/Snow

  • Thursday

    Thursday: Snow showers likely before 8am. Mostly cloudy, with a high near 39. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Snow Showers
    Likely then
    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: A chance of rain and snow showers after 2pm. Mostly cloudy, with a high near 47. Breezy. Chance of precipitation is 30%.

    High: 47 °F

    Mostly Cloudy
    then Chance
    Rain/Snow and
    Breezy

  • Friday Night

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

    Low: 30 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 51. Southwest wind around 9 mph.
Tuesday
A slight chance of showers after 2pm. Mostly sunny, with a high near 69. Southwest wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers before 1am, then a slight chance of showers after 5am. Partly cloudy, with a low around 58. South wind 6 to 8 mph. Chance of precipitation is 20%.
Wednesday
Showers and thunderstorms before 11am, then showers between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. Some of the storms could be severe. High near 71. Southwest wind 11 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Rain showers before 5am, then rain and snow showers likely. Some thunder is also possible. Low around 32. West wind 15 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Snow showers likely before 8am. Mostly cloudy, with a high near 39. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
Mostly clear, with a low around 26.
Friday
A chance of rain and snow showers after 2pm. Mostly cloudy, with a high near 47. Breezy. Chance of precipitation is 30%.
Friday Night
A chance of rain and snow showers before 8pm. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
A chance of showers. Mostly cloudy, with a high near 58. Chance of precipitation is 30%.
Sunday Night
Showers. Low around 31. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 37. Breezy. Chance of precipitation is 80%.
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown-Cambria County Airport PA
 40.31°N 78.84°W (Elev. 2221 ft)
Last Update:
2:05 am EDT Mar 10, 2026
Forecast Valid:
2am EDT Mar 10, 2026-6pm EDT Mar 16, 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