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

65°F

18°C

Humidity 66%
Wind Speed Calm
Barometer 30.08 in (1018.2 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 6 Sep 7:54 pm EDT
Extended Forecast for

Cassandra PA

  • Tonight

    Tonight: Mostly clear, with a low around 52. Light east wind.

    Low: 52 °F

    Mostly Clear

  • Labor Day

    Labor Day: Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 75. Light east wind.

    High: 75 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. Light south wind.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 2am. Partly cloudy, with a low around 66. Chance of precipitation is 50%.

    Low: 66 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly after 8am. Mostly cloudy, with a high near 75. Chance of precipitation is 70%.

    High: 75 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers before 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 52. Light east wind.
Labor Day
Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 75. Light east wind.
Monday Night
Partly cloudy, with a low around 53. Calm wind.
Tuesday
Sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 61. Light south wind.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
A chance of showers after 2am. Partly cloudy, with a low around 66. Chance of precipitation is 50%.
Thursday
Showers likely, mainly after 8am. Mostly cloudy, with a high near 75. Chance of precipitation is 70%.
Thursday Night
A chance of showers before 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 54.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cassandra PA
 40.4°N 78.65°W (Elev. 1699 ft)
Last Update:
7:46 pm EDT Sep 6, 2026
Forecast Valid:
8pm EDT Sep 6, 2026-6pm EDT Sep 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