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.

Mostly Cloudy

57°F

14°C

Humidity 83%
Wind Speed NW 7 mph
Barometer 29.87 in (1010.4 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 19 Jun 6:54 am EDT
Extended Forecast for

Cassandra PA

  • Juneteenth

    Juneteenth: Scattered showers between 4pm and 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 70. West wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 70 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 54. West wind 9 to 14 mph, with gusts as high as 25 mph.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Isolated showers and thunderstorms between 2pm and 3pm. Mostly sunny, with a high near 69. West wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 69 °F

    Sunny then
    Isolated
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55. West wind 5 to 9 mph.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 73. West wind 7 to 9 mph.

    High: 73 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 58. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 71. Chance of precipitation is 90%.

    High: 71 °F

    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

Detailed Forecast

Juneteenth
Scattered showers between 4pm and 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 70. West wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Tonight
Mostly clear, with a low around 54. West wind 9 to 14 mph, with gusts as high as 25 mph.
Saturday
Isolated showers and thunderstorms between 2pm and 3pm. Mostly sunny, with a high near 69. West wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 55. West wind 5 to 9 mph.
Sunday
Mostly sunny, with a high near 73. West wind 7 to 9 mph.
Sunday Night
A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 58. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers, with thunderstorms also possible after 2pm. High near 71. Chance of precipitation is 90%.
Monday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Tuesday
Partly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Mostly sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 74. Chance of precipitation is 50%.
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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:
7:11 am EDT Jun 19, 2026
Forecast Valid:
7am EDT Jun 19, 2026-6pm EDT Jun 25, 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