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

67°F

19°C

Humidity 97%
Wind Speed S 6 mph
Barometer 30.11 in (1018.3 mb)
Dewpoint 66°F (19°C)
Visibility 7.00 mi
Last update 8 Jul 7:54 am EDT
Extended Forecast for

Cassandra PA

  • Today

    Today: Scattered showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 79. Southeast wind 3 to 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Scattered
    Showers

  • Tonight

    Tonight: Isolated showers and thunderstorms before 9pm. Mostly cloudy, with a low around 65. Light south wind. Chance of precipitation is 20%.

    Low: 65 °F

    Isolated
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: Scattered showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Scattered
    Showers then
    Scattered
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65. West wind around 5 mph.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 78. West wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers
    Likely then
    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms before 11pm, then a chance of showers. Low around 62. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Showers then
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

Today
Scattered showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 79. Southeast wind 3 to 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Isolated showers and thunderstorms before 9pm. Mostly cloudy, with a low around 65. Light south wind. Chance of precipitation is 20%.
Thursday
Scattered showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Partly cloudy, with a low around 65. West wind around 5 mph.
Friday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 78. West wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms before 11pm, then a chance of showers. Low around 62. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 62.
Tuesday
Sunny, with a high near 82.
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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:
6:11 am EDT Jul 8, 2026
Forecast Valid:
8am EDT Jul 8, 2026-6pm EDT Jul 14, 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