Hazardous Weather Conditions
Current conditions at
Johnstown - Cambria County Airport (KJST)
Lat: 40.31°NLon: 78.83°WElev: 2274ft.
Overcast
69°F
21°C
| Humidity | 96% |
| Wind Speed | S 7 mph |
| Barometer | 30.08 in (1017.1 mb) |
| Dewpoint | 68°F (20°C) |
| Visibility | 9.00 mi |
| Last update | 16 Aug 8:54 am EDT |
Extended Forecast for
Twin Rocks PA
Flood Watch until August 16, 10:00pm
NOW until 10:00pm Sun
Flood Watch
Today
High: 76 °F
Showers then
T-stormsTonight
Low: 68 °F
T-storms then
Showers
LikelyMonday
High: 77 °F
Showers
LikelyMonday Night
Low: 59 °F
Partly Cloudy
Tuesday
High: 75 °F
Mostly Sunny
Tuesday Night
Low: 59 °F
Mostly Clear
Wednesday
High: 77 °F
Mostly Sunny
then Chance
T-stormsWednesday Night
Low: 60 °F
Showers
Likely
Detailed Forecast
Today
Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. High near 76. South wind 6 to 8 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 2am, then a chance of showers after 2am. Low around 68. West wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 77. West wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Partly cloudy, with a low around 59. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 75. Northwest wind 3 to 7 mph.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely after 8pm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Thursday
A chance of showers before 8am. Partly sunny, with a high near 73. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Partly sunny, with a high near 74.
Friday Night
Mostly cloudy, with a low around 58.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 75. Chance of precipitation is 40%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Twin Rocks PA
40.53°N 78.84°W (Elev. 1900 ft)
40.53°N 78.84°W (Elev. 1900 ft)
8:05 am EDT Aug 16, 2026
9am EDT Aug 16, 2026-6pm EDT Aug 22, 2026
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