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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: Partly cloudy, with a low around 34. South wind around 6 mph.

    Low: 34 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 50. Southwest wind around 7 mph becoming west in the afternoon.

    High: 50 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of rain and snow between 1am and 4am, then a chance of snow after 4am. Increasing clouds, with a low around 29. Light and variable wind becoming north around 5 mph after midnight. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Partly Cloudy
    then Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of snow before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 34. Northwest wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 34 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 13. Northwest wind 5 to 7 mph.

    Low: 13 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of snow. Partly sunny, with a high near 31. Chance of precipitation is 20%.

    High: 31 °F

    Slight Chance
    Snow

  • Monday Night

    Monday Night: A chance of snow and freezing rain after 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.

    Low: 19 °F

    Partly Cloudy
    then Chance
    Wintry Mix

  • Tuesday

    Tuesday: Rain, snow, and freezing rain likely, mainly after 1pm. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.

    High: 38 °F

    Wintry Mix
    Likely

  • Tuesday Night

    Tuesday Night: Rain or freezing rain likely before 1am, then a chance of rain. Cloudy, with a low around 32. Chance of precipitation is 60%.

    Low: 32 °F

    Rain/Freezing
    Rain Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 34. South wind around 6 mph.
Saturday
Partly sunny, with a high near 50. Southwest wind around 7 mph becoming west in the afternoon.
Saturday Night
A chance of rain and snow between 1am and 4am, then a chance of snow after 4am. Increasing clouds, with a low around 29. Light and variable wind becoming north around 5 mph after midnight. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Sunday
A chance of snow before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 34. Northwest wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 13. Northwest wind 5 to 7 mph.
Monday
A slight chance of snow. Partly sunny, with a high near 31. Chance of precipitation is 20%.
Monday Night
A chance of snow and freezing rain after 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.
Tuesday
Rain, snow, and freezing rain likely, mainly after 1pm. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.
Tuesday Night
Rain or freezing rain likely before 1am, then a chance of rain. Cloudy, with a low around 32. Chance of precipitation is 60%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 50%.
Thursday
Rain likely. Mostly cloudy, with a high near 51. Chance of precipitation is 60%.
Thursday Night
Rain likely. Cloudy, with a low around 42. Chance of precipitation is 70%.
Friday
Rain likely. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.
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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:
7:06 pm EST Feb 27, 2026
Forecast Valid:
9pm EST Feb 27, 2026-6pm EST Mar 6, 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