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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

  • Today

    Today: A chance of rain, mainly after 5pm. Cloudy, with a high near 39. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 39 °F

    Cloudy then
    Chance Rain

  • Tonight

    Tonight: A chance of rain, mainly before 7pm. Cloudy, with a low around 31. South wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Chance Rain
    then Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly cloudy, with a high near 44. Southwest wind around 6 mph.

    High: 44 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. Southwest wind around 6 mph.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 46. West wind 3 to 6 mph.

    High: 46 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 20%.

    Low: 34 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Rain. High near 42. Chance of precipitation is 90%.

    High: 42 °F

    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 50%.

    Low: 37 °F

    Chance Rain

  • Thursday

    Thursday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

Detailed Forecast

Today
A chance of rain, mainly after 5pm. Cloudy, with a high near 39. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%.
Tonight
A chance of rain, mainly before 7pm. Cloudy, with a low around 31. South wind 3 to 6 mph. Chance of precipitation is 30%.
Washington's Birthday
Mostly cloudy, with a high near 44. Southwest wind around 6 mph.
Monday Night
Mostly cloudy, with a low around 33. Southwest wind around 6 mph.
Tuesday
Partly sunny, with a high near 46. West wind 3 to 6 mph.
Tuesday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 20%.
Wednesday
Rain. High near 42. Chance of precipitation is 90%.
Wednesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 50%.
Thursday
Partly sunny, with a high near 47.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 34. Chance of precipitation is 50%.
Friday
Rain likely. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Saturday
A chance of snow. Mostly cloudy, with a high near 37. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Sinnamahoning PA
 41.41°N 78.11°W (Elev. 2169 ft)
Last Update:
2:31 am EST Feb 15, 2026
Forecast Valid:
5am EST Feb 15, 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

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation