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

62°F

17°C

Humidity 25%
Wind Speed W 8 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 9 Mar 6:54 pm EDT
Extended Forecast for

Portage PA

  • Tonight

    Tonight: Mostly clear, with a low around 50. Southwest wind around 8 mph.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers before 4pm, then a slight chance of showers after 5pm. Partly sunny, with a high near 69. Southwest wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 69 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 7pm, then a chance of showers after 2am. Partly cloudy, with a low around 58. Southwest wind around 7 mph. Chance of precipitation is 30%.

    Low: 58 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 2pm. Some of the storms could be severe. High near 71. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers then
    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Rain showers before 5am, then rain and snow showers likely. Some thunder is also possible. Low around 33. Breezy, with a southwest wind 18 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 33 °F

    Breezy.
    Showers then
    Rain/Snow

  • Thursday

    Thursday: Rain and snow showers likely before 8am, then a chance of snow showers between 8am and 2pm. Mostly cloudy, with a high near 38. Breezy. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Breezy.
    Rain/Snow
    Likely then
    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: A chance of snow showers before 2pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 46. Chance of precipitation is 50%.

    High: 46 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain and snow showers before 2am. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.

    Low: 29 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 50. Southwest wind around 8 mph.
Tuesday
A slight chance of showers before 4pm, then a slight chance of showers after 5pm. Partly sunny, with a high near 69. Southwest wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers before 7pm, then a chance of showers after 2am. Partly cloudy, with a low around 58. Southwest wind around 7 mph. Chance of precipitation is 30%.
Wednesday
Showers, with thunderstorms also possible after 2pm. Some of the storms could be severe. High near 71. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Rain showers before 5am, then rain and snow showers likely. Some thunder is also possible. Low around 33. Breezy, with a southwest wind 18 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Rain and snow showers likely before 8am, then a chance of snow showers between 8am and 2pm. Mostly cloudy, with a high near 38. Breezy. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
Mostly clear, with a low around 26.
Friday
A chance of snow showers before 2pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 46. Chance of precipitation is 50%.
Friday Night
A chance of rain and snow showers before 2am. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 44.
Saturday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly cloudy, with a high near 58. Chance of precipitation is 40%.
Sunday Night
Rain and snow showers. Low around 30. Breezy. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 37. Breezy. Chance of precipitation is 80%.
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ABOUT THIS FORECAST

 
Point Forecast:
Portage PA
 40.36°N 78.66°W (Elev. 2103 ft)
Last Update:
2:26 pm EDT Mar 9, 2026
Forecast Valid:
7pm EDT Mar 9, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation