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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: A chance of rain and snow showers before 8pm, then a chance of snow showers between 8pm and 4am. Mostly cloudy, with a low around 30. West wind around 14 mph, with gusts as high as 31 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 30 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 36. West wind 8 to 14 mph, with gusts as high as 30 mph.

    High: 36 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of snow after 1am. Mostly cloudy, with a low around 28. West wind around 6 mph becoming south after midnight. Chance of precipitation is 30%.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow. High near 34. Southeast wind around 6 mph becoming northeast in the afternoon. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 34 °F

    Snow

  • Sunday Night

    Sunday Night: Snow. Low around 26. North wind 6 to 9 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 26 °F

    Snow

  • Monday

    Monday: A chance of snow, mainly before 1pm. Mostly cloudy, with a high near 33. Chance of precipitation is 40%.

    High: 33 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow showers. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.

    Low: 24 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
A chance of rain and snow showers before 8pm, then a chance of snow showers between 8pm and 4am. Mostly cloudy, with a low around 30. West wind around 14 mph, with gusts as high as 31 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly cloudy, with a high near 36. West wind 8 to 14 mph, with gusts as high as 30 mph.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 28. West wind around 6 mph becoming south after midnight. Chance of precipitation is 30%.
Sunday
Snow. High near 34. Southeast wind around 6 mph becoming northeast in the afternoon. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Sunday Night
Snow. Low around 26. North wind 6 to 9 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Monday
A chance of snow, mainly before 1pm. Mostly cloudy, with a high near 33. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 18.
Tuesday
Partly sunny, with a high near 27.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.
Wednesday
A chance of snow showers. Mostly cloudy, with a high near 41. Chance of precipitation is 40%.
Wednesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 33. Chance of precipitation is 50%.
Thursday
A chance of rain and snow showers. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 39.
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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 20, 2026
Forecast Valid:
7pm EST Feb 20, 2026-6pm EST Feb 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation