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.

Partly Cloudy

71°F

22°C

Humidity 76%
Wind Speed W 9 mph
Barometer 30.02 in (1015.6 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 19 Aug 5:54 pm EDT
Extended Forecast for

Cassandra PA

  • Tonight

    Tonight: A chance of rain, mainly after 3am. Mostly cloudy, with a low around 62. West wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Periods of rain and thunderstorms before 2pm, then rain likely and possibly a thunderstorm between 2pm and 5pm, then a chance of rain and thunderstorms after 5pm. High near 70. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 70 °F

    Rain

  • Thursday Night

    Thursday Night: A chance of rain and thunderstorms, mainly before 7pm. Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 56. Light northeast wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Chance Rain
    and Patchy
    Fog then
    Patchy Fog

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 73. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.

    High: 73 °F

    Patchy Fog
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Southeast wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers after 8am. Partly sunny, with a high near 71. Chance of precipitation is 40%.

    High: 71 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of rain, mainly after 3am. Mostly cloudy, with a low around 62. West wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Periods of rain and thunderstorms before 2pm, then rain likely and possibly a thunderstorm between 2pm and 5pm, then a chance of rain and thunderstorms after 5pm. High near 70. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A chance of rain and thunderstorms, mainly before 7pm. Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 56. Light northeast wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 73. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Southeast wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Sunday
A chance of showers after 8am. Partly sunny, with a high near 71. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
A chance of showers. Partly sunny, with a high near 75. 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:
3:03 pm EDT Aug 19, 2026
Forecast Valid:
5pm EDT Aug 19, 2026-6pm EDT Aug 26, 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