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

Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Overcast

31°F

-1°C

Humidity 92%
Wind Speed NW 7 mph
Barometer 30.00 in (1017.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 27 Dec 12:54 pm EST
Extended Forecast for

Westmont PA

High Wind Watch December 29, 10:00am until December 30, 01:00pm
Click here for hazard details and duration
High Wind Watch

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 37. Light northwest wind.

    High: 37 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. Light southeast wind.

    Low: 28 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain likely, mainly before 3pm. Mostly cloudy, with a high near 54. South wind 5 to 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Chance Rain
    then Rain
    Likely

  • Sunday Night

    Sunday Night: Rain, mainly after 1am. Low around 45. South wind 6 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Chance Rain
    then Rain

  • Monday

    Monday: Rain showers likely before 10am, then rain and snow showers likely between 10am and 4pm, then a chance of snow showers after 4pm. Mostly cloudy, with a high near 51. Breezy, with a southwest wind 16 to 24 mph, with gusts as high as 50 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 51 °F

    Rain/Snow
    Likely and
    Breezy

  • Monday Night

    Monday Night: Snow showers likely. Mostly cloudy, with a low around 18. Windy. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 18 °F

    Snow Showers
    Likely and
    Windy

  • Tuesday

    Tuesday: A chance of snow showers before 1pm. Mostly cloudy, with a high near 24. Breezy. Chance of precipitation is 40%.

    High: 24 °F

    Chance Snow
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow showers after 1pm. Mostly cloudy, with a high near 29. Chance of precipitation is 30%.

    High: 29 °F

    Mostly Cloudy
    then Chance
    Snow Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 37. Light northwest wind.
Tonight
Mostly cloudy, with a low around 28. Light southeast wind.
Sunday
Rain likely, mainly before 3pm. Mostly cloudy, with a high near 54. South wind 5 to 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Rain, mainly after 1am. Low around 45. South wind 6 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain showers likely before 10am, then rain and snow showers likely between 10am and 4pm, then a chance of snow showers after 4pm. Mostly cloudy, with a high near 51. Breezy, with a southwest wind 16 to 24 mph, with gusts as high as 50 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
Snow showers likely. Mostly cloudy, with a low around 18. Windy. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Tuesday
A chance of snow showers before 1pm. Mostly cloudy, with a high near 24. Breezy. Chance of precipitation is 40%.
Tuesday Night
Mostly cloudy, with a low around 17.
Wednesday
A chance of snow showers after 1pm. Mostly cloudy, with a high near 29. Chance of precipitation is 30%.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 21. Chance of precipitation is 50%.
New Year's Day
A chance of snow showers. Mostly cloudy, with a high near 28. Chance of precipitation is 50%.
Thursday Night
Mostly cloudy, with a low around 13.
Friday
Partly sunny, with a high near 25.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont PA
 40.32°N 78.96°W (Elev. 1729 ft)
Last Update:
12:11 pm EST Dec 27, 2025
Forecast Valid:
12pm EST Dec 27, 2025-6pm EST Jan 2, 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