News Headlines
- When does the first frost occur in Central PA? See when the first 36 degree temperatures typically occur.
- A 5th tornado has been determined to have occurred in Central PA (Burnside Twp in northern Centre County) on July 18th, 2026. See details.
- See information on the Cyclone (PA) Tornado of Sept 9th, 2026
Hazardous Weather Conditions
Current conditions at
Johnstown - Cambria County Airport (KJST)
Lat: 40.31°NLon: 78.83°WElev: 2274ft.
Fair
48°F
9°C
| Humidity | 71% |
| Wind Speed | NE 6 mph |
| Barometer | 30.31 in (1026.6 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 45°F (7°C) |
| Last update | 24 Sep 11:54 pm EDT |
Extended Forecast for
2 Miles NNW Cairnbrook PA
Frost Advisory September 25, 01:00am until September 25, 08:00am
Overnight
Low: 39 °F
Patchy Frost
Friday
High: 64 °F
Patchy Frost
then SunnyFriday Night
Low: 44 °F
Mostly Clear
Saturday
High: 63 °F
Partly Sunny
Saturday Night
Low: 48 °F
Mostly Cloudy
Sunday
High: 60 °F
Mostly Cloudy
Sunday Night
Low: 51 °F
Mostly Cloudy
Monday
High: 59 °F
Mostly Cloudy
Monday Night
Low: 52 °F
Mostly Cloudy
Detailed Forecast
Overnight
Patchy frost after 2am. Otherwise, clear, with a low around 39. Light and variable wind.
Friday
Patchy frost before 8am. Otherwise, sunny, with a high near 64. North wind 3 to 8 mph.
Friday Night
Mostly clear, with a low around 44. North wind around 6 mph.
Saturday
Partly sunny, with a high near 63. North wind 5 to 13 mph, with gusts as high as 22 mph.
Saturday Night
Mostly cloudy, with a low around 48. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.
Sunday
Mostly cloudy, with a high near 60.
Sunday Night
Mostly cloudy, with a low around 51.
Monday
Mostly cloudy, with a high near 59.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Partly sunny, with a high near 67.
Wednesday Night
Mostly cloudy, with a low around 55.
Thursday
Partly sunny, with a high near 71.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles NNW Cairnbrook PA
40.16°N 78.84°W (Elev. 2218 ft)
40.16°N 78.84°W (Elev. 2218 ft)
12:07 am EDT Sep 25, 2026
12am EDT Sep 25, 2026-6pm EDT Oct 1, 2026
Additional Resources
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Hourly Weather Forecast
