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.

Fair

56°F

13°C

Humidity 90%
Wind Speed SE 7 mph
Barometer 30.21 in (1022.9 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 6 Mar 7:54 pm EST
Extended Forecast for

Cassandra PA

  • Tonight

    Tonight: A slight chance of rain between 11pm and 1am. Patchy fog before 5am. Otherwise, mostly cloudy, with a low around 48. South wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 48 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Saturday

    Saturday: A chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 68. Southwest wind 9 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Chance
    Showers and
    Patchy Fog
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 1am, then showers likely between 1am and 4am, then showers likely and possibly a thunderstorm after 4am. Low around 49. Southwest wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 55. West wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 55 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. Southwest wind around 9 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 49.

    Low: 49 °F

    Clear

  • Tuesday

    Tuesday: A chance of showers after 1pm. Mostly sunny, with a high near 68. Chance of precipitation is 40%.

    High: 68 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.

    Low: 55 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Tonight
A slight chance of rain between 11pm and 1am. Patchy fog before 5am. Otherwise, mostly cloudy, with a low around 48. South wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Saturday
A chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 68. Southwest wind 9 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm before 1am, then showers likely between 1am and 4am, then showers likely and possibly a thunderstorm after 4am. Low around 49. Southwest wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 55. West wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 41. Southwest wind around 9 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 64.
Monday Night
Clear, with a low around 49.
Tuesday
A chance of showers after 1pm. Mostly sunny, with a high near 68. Chance of precipitation is 40%.
Tuesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Wednesday
Showers. High near 64. Chance of precipitation is 90%.
Wednesday Night
Rain and snow showers likely. Cloudy, with a low around 33. Chance of precipitation is 70%.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
A chance of showers. Partly sunny, with a high near 47. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Cassandra PA
 40.4°N 78.62°W (Elev. 2211 ft)
Last Update:
7:06 pm EST Mar 6, 2026
Forecast Valid:
8pm EST Mar 6, 2026-6pm EDT Mar 13, 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