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.

Fair

43°F

6°C

Humidity 65%
Wind Speed S 16 mph
Barometer 30.05 in (1018.1 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 9 Jan 2:54 am EST
Extended Forecast for

Portage PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 42. South wind around 10 mph, with gusts as high as 22 mph.

    Low: 42 °F

    Mostly Cloudy

  • Friday

    Friday: Periods of rain, mainly before 2pm. High near 55. South wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain, mainly before 7pm. Cloudy, with a low around 36. West wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Chance Rain
    then Cloudy

  • Saturday

    Saturday: Rain. High near 44. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 44 °F

    Rain Likely
    then Rain

  • Saturday Night

    Saturday Night: Rain before 1am, then a slight chance of showers after 1am. Low around 29. South wind 6 to 11 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 29 °F

    Rain

  • Sunday

    Sunday: A chance of snow showers. Mostly cloudy, with a high near 32. Breezy. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Chance Snow
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 23. Breezy.

    Low: 23 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 42. South wind around 10 mph, with gusts as high as 22 mph.
Friday
Periods of rain, mainly before 2pm. High near 55. South wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A chance of rain, mainly before 7pm. Cloudy, with a low around 36. West wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. High near 44. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain before 1am, then a slight chance of showers after 1am. Low around 29. South wind 6 to 11 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 32. Breezy. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly cloudy, with a low around 23. Breezy.
Monday
Partly sunny, with a high near 33.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
A chance of rain. Mostly cloudy, with a high near 40. Chance of precipitation is 50%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.
Thursday
A chance of snow. Mostly cloudy, with a high near 30. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Portage PA
 40.39°N 78.68°W (Elev. 1621 ft)
Last Update:
2:06 am EST Jan 9, 2026
Forecast Valid:
3am EST Jan 9, 2026-6pm EST Jan 15, 2026
 
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Additional Resources

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Chance of Precipitation