National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Overcast

65°F

18°C

Humidity 84%
Wind Speed S 5 mph
Barometer 30.10 in (1018.6 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 16 Jun 11:54 am EDT
Extended Forecast for

Twin Rocks PA

  • This Afternoon

    This Afternoon: A slight chance of showers. Mostly cloudy, with a high near 69. Southeast wind 6 to 8 mph. Chance of precipitation is 20%.

    High: 69 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A chance of showers, mainly after 9pm. Cloudy, with a low around 62. Southeast wind around 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 74. South wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 74 °F

    Chance
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 66. South wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 78. Southwest wind 6 to 8 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Low around 68. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Showers then
    Chance
    T-storms

  • Juneteenth

    Juneteenth: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 77. Chance of precipitation is 80%.

    High: 77 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm. Low around 59. Chance of precipitation is 80%.

    Low: 59 °F

    Showers then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers. Mostly cloudy, with a high near 69. Southeast wind 6 to 8 mph. Chance of precipitation is 20%.
Tonight
A chance of showers, mainly after 9pm. Cloudy, with a low around 62. Southeast wind around 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 74. South wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 66. South wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 78. Southwest wind 6 to 8 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Low around 68. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 77. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm before 8pm. Low around 59. Chance of precipitation is 80%.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Partly sunny, with a high near 81.
Saturday Night
Mostly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Twin Rocks PA
 40.51°N 78.87°W (Elev. 1831 ft)
Last Update:
11:52 am EDT Jun 16, 2025
Forecast Valid:
12pm EDT Jun 16, 2025-6pm EDT Jun 22, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation