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

51°F

11°C

Humidity 28%
Wind Speed S 8 mph
Barometer 30.14 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 25 Mar 1:54 pm EDT
Extended Forecast for

Johnstown PA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 61. South wind around 7 mph.

    High: 61 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 48. South wind 3 to 5 mph.

    Low: 48 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers, mainly between noon and 1pm. Partly sunny, with a high near 69. Southwest wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 69 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 45. Southwest wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 45 °F

    Showers
    Likely then
    Showers

  • Friday

    Friday: Showers, mainly before 8am. High near 51. North wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 61. South wind around 7 mph.
Tonight
Partly cloudy, with a low around 48. South wind 3 to 5 mph.
Thursday
A chance of showers, mainly between noon and 1pm. Partly sunny, with a high near 69. Southwest wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 45. Southwest wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Showers, mainly before 8am. High near 51. North wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Partly cloudy, with a low around 24.
Saturday
Sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 39.
Monday
Partly sunny, with a high near 58.
Monday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown PA
 40.32°N 78.93°W (Elev. 1670 ft)
Last Update:
2:21 pm EDT Mar 25, 2026
Forecast Valid:
2pm EDT Mar 25, 2026-6pm EDT Mar 31, 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