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.

Partly Cloudy

60°F

16°C

Humidity 72%
Wind Speed SW 5 mph
Barometer 29.97 in (1014.2 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 23 Aug 9:54 pm EDT
Extended Forecast for

3 Miles WNW Alum Bank PA

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 2am, then a slight chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 53. West wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 53 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Partly sunny, with a high near 61. West wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 61 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52. West wind around 9 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66. West wind around 10 mph, with gusts as high as 20 mph.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. Chance of precipitation is 50%.

    High: 74 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.

    Low: 61 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 2am, then a slight chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 53. West wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Monday
Partly sunny, with a high near 61. West wind 11 to 14 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 52. West wind around 9 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 66. West wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
Friday
Mostly sunny, with a high near 71.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Alum Bank PA
 40.21°N 78.68°W (Elev. 2795 ft)
Last Update:
8:11 pm EDT Aug 23, 2026
Forecast Valid:
10pm EDT Aug 23, 2026-6pm EDT Aug 30, 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