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.

68°F

20°C

Humidity 76%
Wind Speed SW 8 mph
Barometer 30.13 in (1018.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 20 May 8:54 am EDT
Extended Forecast for

Saint Michael-Sidman PA

  • Today

    Today: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 75. West wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. North wind around 6 mph becoming calm after midnight. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 64. Northeast wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of rain after 2am. Mostly cloudy, with a low around 49. East wind 5 to 7 mph. Chance of precipitation is 20%.

    Low: 49 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: Rain, mainly after 2pm. High near 58. Southeast wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Chance Rain
    then Rain

  • Friday Night

    Friday Night: Rain. Low around 48. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 48 °F

    Rain

  • Saturday

    Saturday: Rain. High near 56. Chance of precipitation is 90%.

    High: 56 °F

    Rain

  • Saturday Night

    Saturday Night: Showers, mainly before 2am. Low around 52. Chance of precipitation is 80%.

    Low: 52 °F

    Showers

  • Sunday

    Sunday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.

    High: 71 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Today
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 75. West wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. North wind around 6 mph becoming calm after midnight. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 64. Northeast wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A slight chance of rain after 2am. Mostly cloudy, with a low around 49. East wind 5 to 7 mph. Chance of precipitation is 20%.
Friday
Rain, mainly after 2pm. High near 58. Southeast wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain. Low around 48. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
Rain. High near 56. Chance of precipitation is 90%.
Saturday Night
Showers, mainly before 2am. Low around 52. Chance of precipitation is 80%.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Memorial Day
Showers likely. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 76. Chance of precipitation is 50%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Michael-Sidman PA
 40.33°N 78.75°W (Elev. 1696 ft)
Last Update:
8:05 am EDT May 20, 2026
Forecast Valid:
9am EDT May 20, 2026-6pm EDT May 26, 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