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.

Light Snow Fog/Mist

19°F

-7°C

Humidity 92%
Wind Speed W 12 mph
Barometer 29.97 in (1018.0 mb)
Dewpoint 17°F (-8°C)
Visibility 6.00 mi
Wind Chill6°F (-14°C)
Last update 18 Jan 7:54 am EST
Extended Forecast for

Johnstown PA

  • Today

    Today: Mostly cloudy, with a high near 23. Light and variable wind becoming west 5 to 7 mph in the morning.

    High: 23 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 15. Southwest wind around 6 mph.

    Low: 15 °F

    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: A chance of snow, mainly between 8am and 1pm. Mostly cloudy, with a high near 24. West wind 7 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.

    High: 24 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 3. Wind chill values as low as -10. West wind 11 to 13 mph, with gusts as high as 31 mph.

    Low: 3 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 15. West wind 11 to 14 mph, with gusts as high as 28 mph.

    High: 15 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 6.

    Low: 6 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of snow after 1pm. Partly sunny, with a high near 35. Chance of precipitation is 30%.

    High: 35 °F

    Partly Sunny
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: A chance of snow. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.

    Low: 21 °F

    Chance Snow

  • Thursday

    Thursday: A chance of snow before 1pm. Partly sunny, with a high near 28. Chance of precipitation is 30%.

    High: 28 °F

    Chance Snow

Detailed Forecast

Today
Mostly cloudy, with a high near 23. Light and variable wind becoming west 5 to 7 mph in the morning.
Tonight
Mostly cloudy, with a low around 15. Southwest wind around 6 mph.
M.L.King Day
A chance of snow, mainly between 8am and 1pm. Mostly cloudy, with a high near 24. West wind 7 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 3. Wind chill values as low as -10. West wind 11 to 13 mph, with gusts as high as 31 mph.
Tuesday
Mostly sunny, with a high near 15. West wind 11 to 14 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly clear, with a low around 6.
Wednesday
A chance of snow after 1pm. Partly sunny, with a high near 35. Chance of precipitation is 30%.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.
Thursday
A chance of snow before 1pm. Partly sunny, with a high near 28. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 11.
Friday
Partly sunny, with a high near 32.
Friday Night
A chance of snow. Mostly cloudy, with a low around 22. Chance of precipitation is 40%.
Saturday
A chance of snow. Mostly cloudy, with a high near 32. 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:
8:01 am EST Jan 18, 2026
Forecast Valid:
8am EST Jan 18, 2026-6pm EST Jan 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation