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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 NW Sinnamahoning PA

  • Tonight

    Tonight: Mostly clear, with a low around 21. Light and variable wind becoming southwest around 5 mph after midnight.

    Low: 21 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 45. Southwest wind 5 to 8 mph.

    High: 45 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 34. South wind around 9 mph.

    Low: 34 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 48. Southwest wind 7 to 9 mph becoming west in the afternoon.

    High: 48 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 25. North wind around 8 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Slight Chance
    Snow Showers
    then Chance
    Snow Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of snow after 1am. Partly cloudy, with a low around 13. Chance of precipitation is 30%.

    Low: 13 °F

    Mostly Clear
    then Chance
    Snow

  • Monday

    Monday: A chance of snow before 1pm. Partly sunny, with a high near 28. Chance of precipitation is 30%.

    High: 28 °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. Light and variable wind becoming southwest around 5 mph after midnight.
Friday
Sunny, with a high near 45. Southwest wind 5 to 8 mph.
Friday Night
Increasing clouds, with a low around 34. South wind around 9 mph.
Saturday
Partly sunny, with a high near 48. Southwest wind 7 to 9 mph becoming west in the afternoon.
Saturday Night
A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 25. North wind around 8 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Sunday
Mostly sunny, with a high near 30.
Sunday Night
A chance of snow after 1am. Partly cloudy, with a low around 13. Chance of precipitation is 30%.
Monday
A chance of snow before 1pm. Partly sunny, with a high near 28. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Mostly cloudy, with a high near 36.
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 44. 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 47. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Sinnamahoning PA
 41.41°N 78.11°W (Elev. 2169 ft)
Last Update:
7:05 pm EST Feb 26, 2026
Forecast Valid:
10pm EST Feb 26, 2026-6pm EST Mar 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation