Hazardous Weather Conditions
Current conditions at
Johnstown - Cambria County Airport (KJST)
Lat: 40.31°NLon: 78.83°WElev: 2274ft.
Fog/Mist
63°F
17°C
| Humidity | 100% |
| Wind Speed | Calm |
| Barometer | 30.24 in (1022.9 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 0.75 mi |
| Last update | 15 Aug 7:54 am EDT |
Extended Forecast for
Saint Michael-Sidman PA
Today
High: 81 °F
Clearing
Tonight
Low: 66 °F
Mostly Cloudy
then Chance
ShowersSunday
High: 77 °F
Heavy Rain
Sunday Night
Low: 68 °F
Showers
Monday
High: 78 °F
Chance
ShowersMonday Night
Low: 58 °F
Partly Cloudy
Tuesday
High: 76 °F
Sunny
Tuesday Night
Low: 59 °F
Mostly Clear
Wednesday
High: 80 °F
Sunny
Detailed Forecast
Today
Cloudy through mid morning, then clearing, with a high near 81. Light east wind.
Tonight
A chance of showers, with thunderstorms also possible after 5am. Mostly cloudy, with a low around 66. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Some of the storms could produce heavy rainfall. High near 77. Southeast wind 6 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Showers and possibly a thunderstorm. Low around 68. West wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 78. Northwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 80.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Thursday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 73.
Additional Forecasts and Information
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Point Forecast:
Saint Michael-Sidman PA
40.33°N 78.75°W (Elev. 1696 ft)
40.33°N 78.75°W (Elev. 1696 ft)
8:06 am EDT Aug 15, 2026
8am EDT Aug 15, 2026-6pm EDT Aug 21, 2026
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