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.

Mostly Cloudy

70°F

21°C

Humidity 51%
Wind Speed W 9 G 20 mph
Barometer 30.00 in (1015.0 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 10 Mar 2:54 pm EDT
Extended Forecast for

Portage PA

  • Tonight

    Tonight: Partly cloudy, with a low around 58. South wind 3 to 6 mph.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10am. Some of the storms could be severe. High near 74. South wind 6 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 74 °F

    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Rain showers before 5am, then rain and snow showers likely. Some thunder is also possible. Low around 32. West wind 15 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Severe
    Thunderstorms
    then
    Rain/Snow

  • Thursday

    Thursday: Snow showers likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 40. Breezy, with a northwest wind 17 to 21 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Snow Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. West wind 5 to 8 mph, with gusts as high as 20 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of rain and snow showers before 2pm, then a chance of rain showers. Mostly cloudy, with a high near 50. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of showers before 2am. Partly cloudy, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 58. South wind 3 to 6 mph.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10am. Some of the storms could be severe. High near 74. South wind 6 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Rain showers before 5am, then rain and snow showers likely. Some thunder is also possible. Low around 32. West wind 15 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Thursday
Snow showers likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 40. Breezy, with a northwest wind 17 to 21 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
Mostly clear, with a low around 29. West wind 5 to 8 mph, with gusts as high as 20 mph.
Friday
A slight chance of rain and snow showers before 2pm, then a chance of rain showers. Mostly cloudy, with a high near 50. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers before 2am. Partly cloudy, with a low around 30. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
A chance of showers after 2pm. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.
Sunday Night
Showers. Low around 35. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 46. Chance of precipitation is 80%.
Monday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 17. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 28.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portage PA
 40.39°N 78.68°W (Elev. 1621 ft)
Last Update:
2:36 pm EDT Mar 10, 2026
Forecast Valid:
3pm EDT Mar 10, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation