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Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

3 Miles E Sinnamahoning PA

  • Tonight

    Tonight: Mostly clear, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 48. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 48 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 34. South wind around 6 mph.

    Low: 34 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 49. West wind around 7 mph.

    High: 49 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of snow showers after 1am. Mostly cloudy, with a low around 26. Northwest wind around 6 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    Low: 26 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of snow after 1am. Partly cloudy, with a low around 14. Chance of precipitation is 30%.

    Low: 14 °F

    Mostly Clear
    then Chance
    Snow

  • Monday

    Monday: A chance of snow before 1pm. Partly sunny, with a high near 29. Chance of precipitation is 40%.

    High: 29 °F

    Chance Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 21. Calm wind.
Friday
Sunny, with a high near 48. Calm wind becoming southwest 5 to 7 mph in the morning.
Friday Night
Mostly clear, with a low around 34. South wind around 6 mph.
Saturday
Partly sunny, with a high near 49. West wind around 7 mph.
Saturday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 26. Northwest wind around 6 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Sunday
Mostly sunny, with a high near 32.
Sunday Night
A chance of snow after 1am. Partly cloudy, with a low around 14. Chance of precipitation is 30%.
Monday
A chance of snow before 1pm. Partly sunny, with a high near 29. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Mostly cloudy, with a high near 37.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 46. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
Thursday
A chance of rain. Mostly cloudy, with a high near 48. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Sinnamahoning PA
 41.38°N 78°W (Elev. 1988 ft)
Last Update:
7:05 pm EST Feb 26, 2026
Forecast Valid:
7pm EST Feb 26, 2026-6pm EST Mar 5, 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