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Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Overcast

55°F

13°C

Humidity 90%
Wind Speed W 10 mph
Barometer 29.88 in (1011.1 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 16 Oct 4:54 pm EDT
Extended Forecast for

Portage PA

Freeze Watch October 18, 01:00am until October 18, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Tonight

    Tonight: A chance of showers, mainly before 11pm. Increasing clouds, with a low around 39. West wind 15 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Chance
    Showers then
    Cloudy

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 45. North wind around 16 mph, with gusts as high as 33 mph.

    High: 45 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost after midnight. Otherwise, clear, with a low around 29. Northwest wind 3 to 8 mph.

    Low: 29 °F

    Clear then
    Frost

  • Sunday

    Sunday: Widespread frost before 9am. Otherwise, sunny, with a high near 53. Calm wind becoming east around 5 mph in the afternoon.

    High: 53 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 3am. Otherwise, mostly clear, with a low around 33. Calm wind.

    Low: 33 °F

    Clear then
    Areas Frost

  • Monday

    Monday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 56.

    High: 56 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers, mainly before 11pm. Increasing clouds, with a low around 39. West wind 15 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 45. North wind around 16 mph, with gusts as high as 33 mph.
Saturday Night
Widespread frost after midnight. Otherwise, clear, with a low around 29. Northwest wind 3 to 8 mph.
Sunday
Widespread frost before 9am. Otherwise, sunny, with a high near 53. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
Areas of frost after 3am. Otherwise, mostly clear, with a low around 33. Calm wind.
Monday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Sunny, with a high near 61.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Mostly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portage PA
 40.36°N 78.66°W (Elev. 2103 ft)
Last Update:
5:31 pm EDT Oct 16, 2026
Forecast Valid:
5pm EDT Oct 16, 2026-6pm EDT Oct 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation