Current conditions at
Johnstown - Cambria County Airport (KJST)
Lat: 40.31°NLon: 78.83°WElev: 2274ft.
Fog/Mist
56°F
13°C
| Humidity | 97% |
| Wind Speed | S 6 mph |
| Barometer | 30.00 in (1015.7 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 6.00 mi |
| Last update | 16 Oct 12:54 am EDT |
Extended Forecast for
Summerhill PA
Overnight

Low: 56 °F
Showers
LikelyFriday
High: 75 °F
Mostly Sunny
then ShowersFriday Night

Low: 37 °F
Showers
LikelySaturday

High: 48 °F
Becoming
SunnySaturday Night

Low: 30 °F
Frost
Sunday

High: 57 °F
Frost then
SunnySunday Night

Low: 35 °F
Clear then
Areas FrostMonday

High: 63 °F
Areas Frost
then SunnyMonday Night

Low: 39 °F
Mostly Clear
Detailed Forecast
Overnight
A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 56. South wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers before 2pm, then showers and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 75. Southwest wind 11 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 37. West wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 48. North wind around 14 mph, with gusts as high as 25 mph.
Saturday Night
Widespread frost, mainly after 11pm. Otherwise, clear, with a low around 30. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Widespread frost before 9am. Otherwise, sunny, with a high near 57.
Sunday Night
Areas of frost after 4am. Otherwise, clear, with a low around 35.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 63.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 63.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Summerhill PA
40.37°N 78.77°W (Elev. 1542 ft)
40.37°N 78.77°W (Elev. 1542 ft)
8:06 pm EDT Oct 15, 2026
1am EDT Oct 16, 2026-6pm EDT Oct 22, 2026


