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

71°F

22°C

Humidity 46%
Wind Speed S 15 G 23 mph
Barometer 30.02 in (1015.6 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 4 Nov 12:54 pm EST
Extended Forecast for

Westmont PA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 73. South wind around 10 mph, with gusts as high as 21 mph.

    High: 73 °F

    Partly Sunny

  • Tonight

    Tonight: Showers, mainly after 9pm. Low around 59. South wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 59 °F

    Showers
    Likely then
    Showers

  • Thursday

    Thursday: A chance of showers, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 68. Southwest wind 5 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. Southwest wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers after 1pm. Partly sunny, with a high near 60. Calm wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 20%.

    High: 60 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly before 1am. Mostly cloudy, with a low around 39. Chance of precipitation is 40%.

    Low: 39 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 60%.

    High: 47 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers before 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.

    Low: 36 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 73. South wind around 10 mph, with gusts as high as 21 mph.
Tonight
Showers, mainly after 9pm. Low around 59. South wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A chance of showers, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 68. Southwest wind 5 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Partly cloudy, with a low around 48. Southwest wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers after 1pm. Partly sunny, with a high near 60. Calm wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 20%.
Friday Night
A chance of showers, mainly before 1am. Mostly cloudy, with a low around 39. Chance of precipitation is 40%.
Saturday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 60%.
Saturday Night
A chance of showers before 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 54.
Monday Night
Mostly clear, with a low around 36.
Tuesday
Sunny, with a high near 58.
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:
1:20 pm EST Nov 4, 2026
Forecast Valid:
1pm EST Nov 4, 2026-6pm EST Nov 10, 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