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.

A Few Clouds

70°F

21°C

Humidity 49%
Wind Speed NE 8 G 20 mph
Barometer 30.06 in (1017.1 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 6 Sep 4:54 pm EDT
Extended Forecast for

Saint Michael-Sidman PA

  • Tonight

    Tonight: Mostly clear, with a low around 52. Northeast wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Clear

  • Labor Day

    Labor Day: Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 76. Light northeast wind.

    High: 76 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 80. Calm wind becoming west around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. Light and variable wind.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 2am. Partly cloudy, with a low around 67. Chance of precipitation is 50%.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly after 8am. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.

    High: 76 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers before 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.

    Low: 56 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 52. Northeast wind around 5 mph becoming calm in the evening.
Labor Day
Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 76. Light northeast wind.
Monday Night
Partly cloudy, with a low around 54. Calm wind.
Tuesday
Sunny, with a high near 80. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 61. Light and variable wind.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
A chance of showers after 2am. Partly cloudy, with a low around 67. Chance of precipitation is 50%.
Thursday
Showers likely, mainly after 8am. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.
Thursday Night
A chance of showers before 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 55.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
A chance of showers. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Michael-Sidman PA
 40.33°N 78.75°W (Elev. 1696 ft)
Last Update:
2:21 pm EDT Sep 6, 2026
Forecast Valid:
5pm EDT Sep 6, 2026-6pm EDT Sep 13, 2026
 
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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