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

57°F

14°C

Humidity 90%
Wind Speed Calm
Barometer 29.95 in (1013.4 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 20 Jun 10:54 pm EDT
Extended Forecast for

Southmont PA

  • Tonight

    Tonight: A slight chance of showers before midnight. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 54. Calm wind. Chance of precipitation is 20%.

    Low: 54 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 75. West wind 3 to 8 mph.

    High: 75 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: A chance of showers, mainly after 5am. Mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 58 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 74. Southeast wind 6 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 74 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 58. West wind 3 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers, mainly before 8am. Partly sunny, with a high near 74. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 74 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers before midnight. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 54. Calm wind. Chance of precipitation is 20%.
Sunday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 75. West wind 3 to 8 mph.
Sunday Night
A chance of showers, mainly after 5am. Mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 74. Southeast wind 6 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Monday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 58. West wind 3 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers, mainly before 8am. Partly sunny, with a high near 74. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Thursday Night
A chance of thunderstorms. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 40%.
Friday Night
A chance of thunderstorms. Partly cloudy, with a low around 57. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Southmont PA
 40.32°N 78.93°W (Elev. 1670 ft)
Last Update:
8:11 pm EDT Jun 20, 2026
Forecast Valid:
11pm EDT Jun 20, 2026-6pm EDT Jun 27, 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