Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Overcast

69°F

21°C

Humidity 68%
Wind Speed NW 5 mph
Barometer 30.15 in (1020.1 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 25 May 2:54 pm EDT
Extended Forecast for

3 Miles SE Portage PA

  • Memorial Day

    Memorial Day: A slight chance of showers.  Mostly cloudy, with a high near 68. North wind around 6 mph.  Chance of precipitation is 20%.

    High: 68 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. Light east wind.

    Low: 55 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, mainly between 4pm and 5pm.  Mostly cloudy, with a high near 72. Light and variable wind becoming south 5 to 7 mph in the morning.  Chance of precipitation is 30%.

    High: 72 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 8pm, then a chance of showers after 2am.  Mostly cloudy, with a low around 60. South wind around 6 mph becoming west after midnight.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 2pm.  Mostly cloudy, with a high near 72. West wind 5 to 7 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

Memorial Day
A slight chance of showers. Mostly cloudy, with a high near 68. North wind around 6 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 55. Light east wind.
Tuesday
A chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly cloudy, with a high near 72. Light and variable wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
A slight chance of showers and thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 60. South wind around 6 mph becoming west after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 72. West wind 5 to 7 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 49.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Portage PA
 40.36°N 78.63°W (Elev. 2326 ft)
2:36 pm EDT May 25, 2026
3pm EDT May 25, 2026-6pm EDT Jun 1, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database