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.

Overcast

46°F

8°C

Humidity 34%
Wind Speed W 6 mph
Barometer 29.95 in (1015.7 mb)
Dewpoint 19°F (-7°C)
Visibility NA
Wind Chill43°F (6°C)
Last update 14 Nov 6:54 pm EST
Extended Forecast for

Portage PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. Southwest wind 3 to 5 mph.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Rain likely, mainly after 3pm. Cloudy, with a high near 58. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Slight Chance
    Rain then
    Rain Likely

  • Saturday Night

    Saturday Night: Rain, mainly before 1am. Low around 40. West wind 15 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Rain

  • Sunday

    Sunday: A slight chance of showers before 1pm. Partly sunny, with a high near 43. Breezy, with a west wind 20 to 23 mph, with gusts as high as 41 mph. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 29. Breezy, with a west wind 17 to 20 mph, with gusts as high as 36 mph.

    Low: 29 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Monday

    Monday: Partly sunny, with a high near 39. Breezy.

    High: 39 °F

    Partly Sunny
    and Breezy

  • Monday Night

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

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow before 1pm, then a chance of rain. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.

    High: 40 °F

    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 40. Southwest wind 3 to 5 mph.
Saturday
Rain likely, mainly after 3pm. Cloudy, with a high near 58. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Rain, mainly before 1am. Low around 40. West wind 15 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A slight chance of showers before 1pm. Partly sunny, with a high near 43. Breezy, with a west wind 20 to 23 mph, with gusts as high as 41 mph. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 29. Breezy, with a west wind 17 to 20 mph, with gusts as high as 36 mph.
Monday
Partly sunny, with a high near 39. Breezy.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
A chance of rain and snow before 1pm, then a chance of rain. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.
Tuesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
A chance of rain. Mostly cloudy, with a high near 49. Chance of precipitation is 30%.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 37. Chance of precipitation is 50%.
Friday
A chance of rain. Mostly cloudy, with a high near 49. Chance of precipitation is 50%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portage PA
 40.39°N 78.68°W (Elev. 1621 ft)
Last Update:
7:05 pm EST Nov 14, 2025
Forecast Valid:
7pm EST Nov 14, 2025-6pm EST Nov 21, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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