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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: Increasing clouds, with a low around 26. West wind around 6 mph becoming calm in the evening.

    Low: 26 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of snow, mainly after 4pm. Cloudy, with a high near 37. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 37 °F

    Cloudy then
    Chance Snow

  • Sunday Night

    Sunday Night: A chance of snow before 7pm. Mostly cloudy, with a low around 27. South wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 27 °F

    Chance Snow
    then Mostly
    Cloudy

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 45. Southwest wind 3 to 6 mph.

    High: 45 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. Southwest wind around 6 mph.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers likely. Mostly cloudy, with a high near 45. Chance of precipitation is 70%.

    High: 45 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 39. Chance of precipitation is 50%.

    Low: 39 °F

    Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 26. West wind around 6 mph becoming calm in the evening.
Sunday
A chance of snow, mainly after 4pm. Cloudy, with a high near 37. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
A chance of snow before 7pm. Mostly cloudy, with a low around 27. South wind 3 to 6 mph. Chance of precipitation is 30%.
Washington's Birthday
Partly sunny, with a high near 45. Southwest wind 3 to 6 mph.
Monday Night
Mostly cloudy, with a low around 30. Southwest wind around 6 mph.
Tuesday
Partly sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Showers likely. Mostly cloudy, with a high near 45. Chance of precipitation is 70%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 39. Chance of precipitation is 50%.
Thursday
A chance of showers. Partly sunny, with a high near 48. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 33. Chance of precipitation is 50%.
Friday
A chance of showers. Mostly cloudy, with a high near 44. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Saturday
A chance of snow showers. Partly sunny, with a high near 37. Chance of precipitation is 30%.
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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:
4:56 pm EST Feb 14, 2026
Forecast Valid:
5pm EST Feb 14, 2026-6pm EST Feb 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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