Hazardous Weather Conditions
Current conditions at
Johnstown - Cambria County Airport (KJST)
Lat: 40.31°NLon: 78.83°WElev: 2274ft.
Overcast
70°F
21°C
| Humidity | 93% |
| Wind Speed | S 9 mph |
| Barometer | 30.12 in (1018.5 mb) |
| Dewpoint | 68°F (20°C) |
| Visibility | 8.00 mi |
| Last update | 10 Aug 8:54 am EDT |
Extended Forecast for
Southmont PA
Severe T-storm Watch until August 10, 03:00pm
NOW until 3:00pm Mon
Severe T-storm Watch
Today
High: 82 °F
Chance
Showers then
Severe
ThunderstormsTonight
Low: 66 °F
Severe
Thunderstorms
then Chance
ShowersTuesday
High: 80 °F
Chance
Showers then
Heavy RainTuesday Night

Low: 63 °F
Heavy Rain
and Patchy
FogWednesday

High: 80 °F
Showers
Likely and
Patchy FogWednesday Night

Low: 63 °F
Showers
LikelyThursday

High: 80 °F
Chance
ShowersThursday Night

Low: 60 °F
Chance
Showers
Detailed Forecast
Today
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Some of the storms could be severe and produce heavy rainfall. Mostly cloudy, with a high near 82. West wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms. Some of the storms could be severe and produce heavy rainfall. Mostly cloudy, with a low around 66. Southwest wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers, with thunderstorms also possible after noon. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 80. West wind 5 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 63. Light west wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers likely, with thunderstorms also possible after 2pm. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 80. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Thursday Night
A chance of showers before 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Southmont PA
40.32°N 78.93°W (Elev. 1670 ft)
40.32°N 78.93°W (Elev. 1670 ft)
9:31 am EDT Aug 10, 2026
9am EDT Aug 10, 2026-6pm EDT Aug 16, 2026



