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

    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.

    Low: 57 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Friday

    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.

    High: 72 °F

    Mostly Sunny
    then Showers

  • Friday Night

    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.

    Low: 38 °F

    Showers
    Likely

  • Saturday

    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.

    High: 47 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 11pm.  Otherwise, clear, with a low around 30. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 30 °F

    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am.  Otherwise, sunny, with a high near 57.

    High: 57 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 35.

    Low: 35 °F

    Clear

  • Monday

    Monday: Areas of frost before 9am.  Otherwise, sunny, with a high near 62.

    High: 62 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39.

    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.
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ABOUT THIS FORECAST

 
Point Forecast:
Twin Rocks PA
 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
 
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Additional Resources

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