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.

Mostly Cloudy

35°F

2°C

Humidity 50%
Wind Speed E 6 mph
Barometer 30.23 in (1025.5 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 25 Mar 7:54 am EDT
Extended Forecast for

Cassandra PA

  • Today

    Today: Mostly cloudy, with a high near 54. Light southeast wind becoming south 5 to 9 mph in the morning.

    High: 54 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. South wind around 9 mph, with gusts as high as 20 mph.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain, mainly after 2pm. Mostly cloudy, with a high near 67. Southwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.

    High: 67 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain before 11pm, then rain and possibly a thunderstorm between 11pm and 2am, then rain after 2am. Low around 40. Southwest wind around 14 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 40 °F

    Rain

  • Friday

    Friday: A chance of rain before 2pm. Mostly cloudy, with a high near 46. Northwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Chance Rain

  • Friday Night

    Friday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 54. Light southeast wind becoming south 5 to 9 mph in the morning.
Tonight
Mostly cloudy, with a low around 45. South wind around 9 mph, with gusts as high as 20 mph.
Thursday
A chance of rain, mainly after 2pm. Mostly cloudy, with a high near 67. Southwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
Thursday Night
Rain before 11pm, then rain and possibly a thunderstorm between 11pm and 2am, then rain after 2am. Low around 40. Southwest wind around 14 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A chance of rain before 2pm. Mostly cloudy, with a high near 46. Northwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Partly sunny, with a high near 56.
Monday Night
A chance of rain. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 63. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cassandra PA
 40.4°N 78.62°W (Elev. 2211 ft)
Last Update:
8:06 am EDT Mar 25, 2026
Forecast Valid:
8am EDT Mar 25, 2026-6pm EDT Mar 31, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation