Current conditions at
Johnstown - Cambria County Airport (KJST)
Lat: 40.31°NLon: 78.83°WElev: 2274ft.
Overcast
58°F
14°C
| Humidity | 81% |
| Wind Speed | SE 7 mph |
| Barometer | 30.14 in (1020.6 mb) |
| Dewpoint | 52°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 15 Oct 2:54 pm EDT |
Extended Forecast for
Twin Rocks PA
Tonight
Low: 57 °F
Slight Chance
T-storms then
Showers
LikelyFriday
High: 72 °F
Mostly Sunny
then ShowersFriday Night

Low: 38 °F
Showers
LikelySaturday

High: 47 °F
Becoming
SunnySaturday Night

Low: 30 °F
Frost
Sunday

High: 57 °F
Frost then
SunnySunday Night

Low: 35 °F
Clear
Monday

High: 62 °F
Areas Frost
then SunnyMonday Night

Low: 39 °F
Mostly Clear
Detailed Forecast
Tonight
A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 57. South wind 8 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 72. Southwest wind 13 to 17 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. 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 38. West wind around 14 mph, with gusts as high as 29 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 47. North wind 11 to 14 mph, with gusts as high as 26 mph.
Saturday Night
Widespread frost, mainly after 11pm. Otherwise, clear, with a low around 30. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 57.
Sunday Night
Clear, with a low around 35.
Monday
Areas of frost before 9am. Otherwise, sunny, with a high near 62.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 62.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Twin Rocks PA
40.51°N 78.87°W (Elev. 1831 ft)
40.51°N 78.87°W (Elev. 1831 ft)
2:21 pm EDT Oct 15, 2026
3pm EDT Oct 15, 2026-6pm EDT Oct 22, 2026


