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.

Fog

59°F

15°C

Humidity 100%
Wind Speed W 5 mph
Barometer 30.11 in (1019.5 mb)
Dewpoint 59°F (15°C)
Visibility 0.25 mi
Last update 25 May 6:54 am EDT
Extended Forecast for

Cassandra PA

  • Memorial Day

    Memorial Day: A chance of showers before 10am, then isolated showers after 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 72. West wind around 6 mph becoming north in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Chance
    Showers and
    Patchy Fog
    then Isolated
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. Light and variable wind.

    Low: 57 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers after 2pm. Partly sunny, with a high near 75. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 75 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 60. Light south wind.

    Low: 60 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 76. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 76 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

Memorial Day
A chance of showers before 10am, then isolated showers after 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 72. West wind around 6 mph becoming north in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Mostly cloudy, with a low around 57. Light and variable wind.
Tuesday
A slight chance of showers after 2pm. Partly sunny, with a high near 75. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 60. Light south wind.
Wednesday
Mostly cloudy, with a high near 76. Calm wind becoming west 5 to 8 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 49.
Friday
Sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cassandra PA
 40.4°N 78.62°W (Elev. 2211 ft)
Last Update:
6:36 am EDT May 25, 2026
Forecast Valid:
7am EDT May 25, 2026-6pm EDT May 31, 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