Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Overcast

66°F

19°C

Humidity 90%
Wind Speed S 5 mph
Barometer 30.03 in (1015.6 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 20 Aug 3:54 am EDT
Extended Forecast for

Johnstown-Cambria County Airport PA

  • Overnight

    Overnight: A chance of showers, with thunderstorms also possible after 5am.  Mostly cloudy, with a low around 62. Light south wind.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms, mainly between 4pm and 5pm.  High near 69. Calm wind becoming northeast around 5 mph in the afternoon.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 69 °F

    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 59. East wind around 6 mph.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 72. East wind 6 to 8 mph.

    High: 72 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 61. Southeast wind around 7 mph.  Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, 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 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers after 8am.  Partly sunny, with a high near 70. Chance of precipitation is 50%.

    High: 70 °F

    Chance
    Showers

  • Sunday Night

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

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers, with thunderstorms also possible after 5am. Mostly cloudy, with a low around 62. Light south wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms, mainly between 4pm and 5pm. High near 69. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Thursday Night
Mostly cloudy, with a low around 59. East wind around 6 mph.
Friday
Partly sunny, then gradually becoming sunny, with a high near 72. East wind 6 to 8 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Southeast wind around 7 mph. Chance of precipitation is 40%.
Saturday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, 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 60. Chance of precipitation is 60%.
Sunday
A chance of showers after 8am. Partly sunny, with a high near 70. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 69.
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 57.
Wednesday
Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown-Cambria County Airport PA
 40.31°N 78.84°W (Elev. 2221 ft)
4:01 am EDT Aug 20, 2026
4am EDT Aug 20, 2026-6pm EDT Aug 26, 2026
 
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Additional Resources

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