Hazardous Weather Conditions
Current conditions at
Johnstown - Cambria County Airport (KJST)
Lat: 40.31°NLon: 78.83°WElev: 2274ft.69°F
21°C
| Humidity | 90% |
| Wind Speed | SW 6 mph |
| Barometer | 30.14 in (1018.8 mb) |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 2 Sep 4:54 am EDT |
Extended Forecast for
3 Miles ESE Nanty Glo PA
Overnight

Low: 68 °F
Slight Chance
T-stormsWednesday
High: 85 °F
Chance
Showers then
Severe
ThunderstormsWednesday Night

Low: 68 °F
Severe
ThunderstormsThursday

High: 83 °F
Severe
ThunderstormsThursday Night
Low: 67 °F
Severe
Thunderstorms
then Showers
LikelyFriday
High: 78 °F
Chance
Showers then
Showers
LikelyFriday Night
Low: 60 °F
Showers
Likely then
Partly CloudySaturday

High: 75 °F
Mostly Sunny
Saturday Night

Low: 54 °F
Mostly Clear
Detailed Forecast
Overnight
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Light southwest wind. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 5pm. Some of the storms could be severe. Mostly sunny, with a high near 85. Light and variable wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms, mainly before 4am. Some of the storms could be severe. Mostly cloudy, with a low around 68. Southwest wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms after 4pm. Some of the storms could be severe. Partly sunny, with a high near 83. West wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Some of the storms could be severe. Mostly cloudy, with a low around 67. West wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 54.
Labor Day
Mostly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Partly sunny, with a high near 76.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles ESE Nanty Glo PA
40.44°N 78.79°W (Elev. 1998 ft)
40.44°N 78.79°W (Elev. 1998 ft)
3:41 am EDT Sep 2, 2026
5am EDT Sep 2, 2026-6pm EDT Sep 8, 2026



