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

82°F

28°C

Humidity 63%
Wind Speed W 13 G 17 mph
Barometer 30.02 in (1014.6 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 17 Aug 1:54 pm EDT
Extended Forecast for

Southmont PA

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 87. West wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 60. Light northwest wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 80. Light and variable wind becoming east around 5 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers, mainly after 2am. Partly cloudy, with a low around 61. Southeast wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, mainly before 8am. Partly sunny, with a high near 78. Southeast wind 5 to 7 mph. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly after 2am. Partly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers after 8am. Partly sunny, with a high near 81. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 87. West wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 60. Light northwest wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 80. Light and variable wind becoming east around 5 mph in the afternoon.
Monday Night
A chance of showers, mainly after 2am. Partly cloudy, with a low around 61. Southeast wind 3 to 5 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers, mainly before 8am. Partly sunny, with a high near 78. Southeast wind 5 to 7 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers, mainly after 2am. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Wednesday
A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Thursday
A chance of showers after 8am. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 62.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Southmont PA
 40.3°N 78.93°W (Elev. 1417 ft)
Last Update:
2:19 pm EDT Aug 17, 2025
Forecast Valid:
2pm EDT Aug 17, 2025-6pm EDT Aug 23, 2025
 
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