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Hazardous Weather Conditions

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

6 Miles ESE Sinnamahoning PA

  • Tonight

    Tonight: A chance of snow showers between 2am and 4am, then snow likely after 4am. Increasing clouds, with a low around 26. Northwest wind around 8 mph becoming northeast after midnight. Chance of precipitation is 60%. Total nighttime snow accumulation of around an inch possible.

    Low: 26 °F

    Partly Cloudy
    then Snow
    Likely

  • Sunday

    Sunday: Snow likely before 7am, then a slight chance of snow showers between 7am and 10am. Partly sunny, with a high near 33. North wind around 9 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 33 °F

    Snow Likely
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 14. North wind 6 to 9 mph.

    Low: 14 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 34. Light and variable wind becoming south around 6 mph in the afternoon.

    High: 34 °F

    Sunny

  • Monday Night

    Monday Night: A chance of snow after 1am, mixing with freezing rain after 4am. Partly cloudy, with a low around 23. Southeast wind 8 to 10 mph. Chance of precipitation is 30%.

    Low: 23 °F

    Mostly Clear
    then Chance
    Wintry Mix

  • Tuesday

    Tuesday: Snow and freezing rain likely, possibly mixed with sleet before 1pm, then rain, possibly mixed with snow. High near 41. Chance of precipitation is 90%. New snow and sleet accumulation of less than a half inch possible.

    High: 41 °F

    Wintry Mix
    Likely then
    Wintry Mix

  • Tuesday Night

    Tuesday Night: Showers, mainly before 1am. Low around 37. Chance of precipitation is 90%.

    Low: 37 °F

    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 50.

    High: 50 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely

Detailed Forecast

Tonight
A chance of snow showers between 2am and 4am, then snow likely after 4am. Increasing clouds, with a low around 26. Northwest wind around 8 mph becoming northeast after midnight. Chance of precipitation is 60%. Total nighttime snow accumulation of around an inch possible.
Sunday
Snow likely before 7am, then a slight chance of snow showers between 7am and 10am. Partly sunny, with a high near 33. North wind around 9 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday Night
Mostly clear, with a low around 14. North wind 6 to 9 mph.
Monday
Sunny, with a high near 34. Light and variable wind becoming south around 6 mph in the afternoon.
Monday Night
A chance of snow after 1am, mixing with freezing rain after 4am. Partly cloudy, with a low around 23. Southeast wind 8 to 10 mph. Chance of precipitation is 30%.
Tuesday
Snow and freezing rain likely, possibly mixed with sleet before 1pm, then rain, possibly mixed with snow. High near 41. Chance of precipitation is 90%. New snow and sleet accumulation of less than a half inch possible.
Tuesday Night
Showers, mainly before 1am. Low around 37. Chance of precipitation is 90%.
Wednesday
Mostly cloudy, with a high near 50.
Wednesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Thursday
Showers likely. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.
Friday
Showers likely. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.
Saturday
Showers likely. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Sinnamahoning PA
 41.35°N 77.94°W (Elev. 1998 ft)
Last Update:
3:41 pm EST Feb 28, 2026
Forecast Valid:
3pm EST Feb 28, 2026-6pm EST Mar 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation