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.

Partly Cloudy

70°F

21°C

Humidity 84%
Wind Speed W 9 mph
Barometer 30.02 in (1015.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 14 Oct 1:54 pm EDT
Extended Forecast for

Summerhill PA

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 74. West wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before 8pm, then isolated showers between 8pm and 9pm. Mostly cloudy, with a low around 51. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Showers
    Likely then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers, mainly after 2pm. Partly sunny, with a high near 65. Southeast wind 3 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, then showers and possibly a thunderstorm after 2am. Low around 56. Southeast wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Showers
    Likely then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 70. Southwest wind 15 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Showers

  • Friday Night

    Friday Night: Showers, mainly before 2am. Low around 36. Breezy. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Showers and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 31.

    Low: 31 °F

    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 59.

    High: 59 °F

    Frost then
    Sunny

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 74. West wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 8pm, then isolated showers between 8pm and 9pm. Mostly cloudy, with a low around 51. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 65. Southeast wind 3 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Showers likely, then showers and possibly a thunderstorm after 2am. Low around 56. Southeast wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and possibly a thunderstorm. High near 70. Southwest wind 15 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers, mainly before 2am. Low around 36. Breezy. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 48.
Saturday Night
Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 31.
Sunday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 37.
Monday
Mostly sunny, with a high near 63.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summerhill PA
 40.37°N 78.77°W (Elev. 1542 ft)
Last Update:
8:06 am EDT Oct 14, 2026
Forecast Valid:
2pm EDT Oct 14, 2026-6pm EDT Oct 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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