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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

4 Miles NW Sinnamahoning PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 15. Light south wind.

    Low: 15 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 41. South wind 3 to 8 mph. Winds could gust as high as 20 mph.

    High: 41 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of rain showers before 11pm, then a slight chance of snow showers after 1am. Mostly cloudy, with a low around 26. West wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 26 °F

    Chance
    Showers then
    Slight Chance
    Snow Showers

  • Wednesday

    Wednesday: A slight chance of snow showers. Mostly cloudy, with a high near 30. West wind around 14 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.

    High: 30 °F

    Slight Chance
    Snow Showers

  • Wednesday Night

    Wednesday Night: A slight chance of snow showers before 1am. Mostly cloudy, with a low around 20. West wind 11 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    Low: 20 °F

    Slight Chance
    Snow Showers

  • Thursday

    Thursday: Mostly cloudy, with a high near 27.

    High: 27 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 15. Light south wind.
Tuesday
Mostly cloudy, with a high near 41. South wind 3 to 8 mph. Winds could gust as high as 20 mph.
Tuesday Night
A chance of rain showers before 11pm, then a slight chance of snow showers after 1am. Mostly cloudy, with a low around 26. West wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A slight chance of snow showers. Mostly cloudy, with a high near 30. West wind around 14 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Wednesday Night
A slight chance of snow showers before 1am. Mostly cloudy, with a low around 20. West wind 11 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Thursday
Mostly cloudy, with a high near 27.
Thursday Night
Mostly cloudy, with a low around 15.
Friday
Partly sunny, with a high near 31.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 36.
Saturday Night
Mostly cloudy, with a low around 19.
Sunday
A chance of snow. Mostly cloudy, with a high near 35. Chance of precipitation is 50%.
Sunday Night
Snow likely. Cloudy, with a low around 28. Chance of precipitation is 60%.
Washington's Birthday
A chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Sinnamahoning PA
 41.44°N 78.1°W (Elev. 1818 ft)
Last Update:
12:56 am EST Feb 10, 2026
Forecast Valid:
1am EST Feb 10, 2026-6pm EST Feb 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation