National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
News Headlines

Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Fog/Mist

1°F

-17°C

Humidity 87%
Wind Speed NW 10 mph
Barometer 29.91 in (1018.3 mb)
Dewpoint -2°F (-19°C)
Visibility 4.00 mi
Wind Chill-15°F (-26°C)
Last update 1 Feb 3:54 am EST
Extended Forecast for

Portage PA

Extreme Cold Warning until February 1, 01:00pm
Click here for hazard details and duration
Extreme Cold Warning
  •  
    Extreme Cold Warning until February 1, 01:00pm

    NOW until 1:00pm Sun

    Extreme Cold Warning

  • Overnight

    Low: -1 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 14. Wind chill values as low as -15. West wind 10 to 15 mph, with gusts as high as 29 mph.

    High: 14 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 4. Wind chill values as low as -10. West wind around 11 mph, with gusts as high as 26 mph.

    Low: 4 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 21. Wind chill values as low as -10. West wind 7 to 9 mph, with gusts as high as 20 mph.

    High: 21 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 13. West wind around 5 mph.

    Low: 13 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow showers after 1pm. Mostly cloudy, with a high near 27. Chance of precipitation is 20%.

    High: 27 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 8.

    Low: 8 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 21.

    High: 21 °F

    Partly Sunny

Detailed Forecast

Overnight
Mostly cloudy, with a low around -1. Wind chill values as low as -15. West wind around 8 mph.
Sunday
Mostly cloudy, with a high near 14. Wind chill values as low as -15. West wind 10 to 15 mph, with gusts as high as 29 mph.
Sunday Night
Mostly cloudy, with a low around 4. Wind chill values as low as -10. West wind around 11 mph, with gusts as high as 26 mph.
Monday
Mostly sunny, with a high near 21. Wind chill values as low as -10. West wind 7 to 9 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 13. West wind around 5 mph.
Tuesday
A slight chance of snow showers after 1pm. Mostly cloudy, with a high near 27. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 8.
Wednesday
Partly sunny, with a high near 21.
Wednesday Night
Mostly cloudy, with a low around 2.
Thursday
Partly sunny, with a high near 19.
Thursday Night
Mostly cloudy, with a low around 12.
Friday
Snow showers. High near 28. Chance of precipitation is 80%.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 5. Chance of precipitation is 50%.
Saturday
Partly sunny, with a high near 11.
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:
2:41 am EST Feb 1, 2026
Forecast Valid:
4am EST Feb 1, 2026-6pm EST Feb 7, 2026
 
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