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

44°F

7°C

Humidity 65%
Wind Speed SE 7 mph
Barometer 30.14 in (1022.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 8 Jan 5:54 pm EST
Extended Forecast for

Portage PA

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 39. Southeast wind 7 to 13 mph, with gusts as high as 26 mph.

    Low: 39 °F

    Decreasing
    Clouds

  • Friday

    Friday: Rain, mainly before 5pm. High near 54. South wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain before 10pm, then a chance of showers, mainly between 10pm and 1am. Cloudy, with a low around 38. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance Rain

  • Saturday

    Saturday: Rain. High near 45. East wind 3 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Rain

  • Saturday Night

    Saturday Night: Rain showers likely before 1am, then a slight chance of rain and snow showers between 1am and 4am, then a slight chance of snow showers after 4am. Cloudy, with a low around 31. South wind 7 to 14 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 31 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Sunday

    Sunday: A chance of snow showers. Mostly cloudy, with a high near 34. Breezy. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Chance Snow
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22. Breezy.

    Low: 22 °F

    Mostly Cloudy
    and Breezy

  • Monday

    Monday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 39. Southeast wind 7 to 13 mph, with gusts as high as 26 mph.
Friday
Rain, mainly before 5pm. High near 54. South wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A chance of rain before 10pm, then a chance of showers, mainly between 10pm and 1am. Cloudy, with a low around 38. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. High near 45. East wind 3 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain showers likely before 1am, then a slight chance of rain and snow showers between 1am and 4am, then a slight chance of snow showers after 4am. Cloudy, with a low around 31. South wind 7 to 14 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 34. Breezy. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly cloudy, with a low around 22. Breezy.
Monday
Partly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
A chance of rain and snow showers. Cloudy, with a high near 37. Chance of precipitation is 50%.
Wednesday Night
A chance of rain and snow showers. Cloudy, with a low around 23. Chance of precipitation is 50%.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 27. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portage PA
 40.38°N 78.66°W (Elev. 2096 ft)
Last Update:
1:05 pm EST Jan 8, 2026
Forecast Valid:
6pm EST Jan 8, 2026-6pm EST Jan 15, 2026
 
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Additional Resources

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Chance of Precipitation