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.

Overcast

23°F

-5°C

Humidity 81%
Wind Speed SW 12 G 21 mph
Barometer 30.15 in (1024.4 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 12 Jan 8:54 am EST
Extended Forecast for

Cassandra PA

  • Today

    Today: Mostly sunny, with a high near 32. West wind 15 to 17 mph, with gusts as high as 34 mph.

    High: 32 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 28. West wind 13 to 15 mph, with gusts as high as 30 mph.

    Low: 28 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 42. Southwest wind around 10 mph, with gusts as high as 22 mph.

    High: 42 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A slight chance of rain before 10pm, then a chance of rain and snow between 10pm and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 36. Southwest wind 11 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    Low: 36 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Rain. High near 39. Southwest wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 39 °F

    Rain Likely
    then Rain

  • Wednesday Night

    Wednesday Night: Rain and snow, becoming all snow after 1am. Low around 23. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 23 °F

    Rain/Snow

  • Thursday

    Thursday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 27. Chance of precipitation is 60%.

    High: 27 °F

    Snow Likely

  • Thursday Night

    Thursday Night: A chance of snow before 1am. Mostly cloudy, with a low around 14. Chance of precipitation is 30%.

    Low: 14 °F

    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 32. West wind 15 to 17 mph, with gusts as high as 34 mph.
Tonight
Mostly clear, with a low around 28. West wind 13 to 15 mph, with gusts as high as 30 mph.
Tuesday
Increasing clouds, with a high near 42. Southwest wind around 10 mph, with gusts as high as 22 mph.
Tuesday Night
A slight chance of rain before 10pm, then a chance of rain and snow between 10pm and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 36. Southwest wind 11 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Wednesday
Rain. High near 39. Southwest wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain and snow, becoming all snow after 1am. Low around 23. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Thursday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 27. Chance of precipitation is 60%.
Thursday Night
A chance of snow before 1am. Mostly cloudy, with a low around 14. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 22.
Friday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.
Saturday
Snow showers likely. Mostly cloudy, with a high near 29. Chance of precipitation is 60%.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 14. Chance of precipitation is 30%.
Sunday
A chance of snow showers. Partly sunny, with a high near 20. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cassandra PA
 40.4°N 78.62°W (Elev. 2211 ft)
Last Update:
7:34 am EST Jan 12, 2026
Forecast Valid:
9am EST Jan 12, 2026-6pm EST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation