Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Overcast

53°F

12°C

Humidity 100%
Wind Speed S 8 mph
Barometer 30.10 in (1019.5 mb)
Dewpoint 53°F (12°C)
Visibility 8.00 mi
Wind Chill50°F (10°C)
Last update 15 Oct 6:54 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 5am, then a chance of showers and thunderstorms after 5am.  Mostly cloudy, with a low around 57. Southeast wind 9 to 11 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 14 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

    Chance
    Showers then
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before midnight.  Mostly cloudy, with a low around 38. West wind 13 to 15 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 46. North wind around 14 mph, with gusts as high as 26 mph.

    High: 46 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 11pm.  Otherwise, clear, with a low around 31. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 31 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 9am.  Otherwise, sunny, with a high near 56.

    High: 56 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 36.

    Low: 36 °F

    Clear

  • Monday

    Monday: Areas of frost before 8am.  Otherwise, sunny, with a high near 61.

    High: 61 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 57. Southeast wind 9 to 11 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 14 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 13 to 15 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 46. North wind around 14 mph, with gusts as high as 26 mph.
Saturday Night
Widespread frost, mainly after 11pm. Otherwise, clear, with a low around 31. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Widespread frost before 9am. Otherwise, sunny, with a high near 56.
Sunday Night
Clear, with a low around 36.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 61.
Monday Night
Mostly clear, with a low around 40.
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 41.
Thursday
Sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Twin Rocks PA
 40.53°N 78.84°W (Elev. 1900 ft)
2:21 pm EDT Oct 15, 2026
7pm EDT Oct 15, 2026-6pm EDT Oct 22, 2026
 
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