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

18°F

-8°C

Humidity 62%
Wind Speed W 20 G 39 mph
Barometer 29.77 in (1011.9 mb)
Dewpoint 7°F (-14°C)
Visibility 5.00 mi
Wind Chill2°F (-17°C)
Last update 30 Dec 12:54 pm EST
Extended Forecast for

Johnstown PA

Winter Weather Advisory December 31, 04:00pm until January 1, 10:00am
Wind Advisory December 30, 01:16pm until December 30, 04:00pm
Click here for hazard details and duration
Winter Weather Advisory
Wind Advisory
  •  
    Wind Advisory December 30, 01:16pm until December 30, 04:00pm

    NOW until 4:00pm Tue

    Wind Advisory

  • This Afternoon

    High: 23 °F

    Slight Chance
    Snow Showers

  • Tonight

    Tonight: A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 18. Southwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.

    Low: 18 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Wednesday

    Wednesday: Snow showers likely, mainly after 4pm. Mostly cloudy, with a high near 29. West wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 29 °F

    Snow Showers
    Likely

  • Wednesday Night

    Wednesday Night: Snow showers, mainly before 1am. Low around 14. West wind 13 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 14 °F

    Snow Showers

  • New Year's Day

    New Year's Day: A slight chance of snow showers before 1pm. Partly sunny, with a high near 19. West wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 19 °F

    Slight Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A slight chance of snow showers. Mostly cloudy, with a high near 23. West wind 16 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
Tonight
A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 18. Southwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
Wednesday
Snow showers likely, mainly after 4pm. Mostly cloudy, with a high near 29. West wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Snow showers, mainly before 1am. Low around 14. West wind 13 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
New Year's Day
A slight chance of snow showers before 1pm. Partly sunny, with a high near 19. West wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 12.
Friday
Partly sunny, with a high near 31.
Friday Night
Mostly cloudy, with a low around 16.
Saturday
Mostly cloudy, with a high near 26.
Saturday Night
Mostly cloudy, with a low around 15.
Sunday
Partly sunny, with a high near 31.
Sunday Night
Mostly cloudy, with a low around 20.
Monday
A chance of rain and snow showers. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
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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:
1:05 pm EST Dec 30, 2025
Forecast Valid:
1pm EST Dec 30, 2025-6pm EST Jan 5, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation