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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

6 Miles ESE Sinnamahoning PA

  • Washington's Birthday

    Washington's Birthday: Patchy fog before 10am. Otherwise, cloudy, with a high near 43. Southwest wind 3 to 6 mph.

    High: 43 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tonight

    Tonight: A slight chance of light rain between 1am and 2am. Cloudy, with a low around 34. South wind around 7 mph. Chance of precipitation is 20%.

    Low: 34 °F

    Mostly Cloudy
    then Slight
    Chance Light
    Rain

  • Tuesday

    Tuesday: Partly sunny, with a high near 48. West wind 3 to 7 mph.

    High: 48 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 36. Light and variable wind becoming southeast around 6 mph after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: Rain. High near 50. Southeast wind 6 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Chance Rain

  • Thursday

    Thursday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.

    Low: 34 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: Rain likely, mainly before 1pm. Mostly cloudy, with a high near 44. Chance of precipitation is 70%.

    High: 44 °F

    Rain Likely

Detailed Forecast

Washington's Birthday
Patchy fog before 10am. Otherwise, cloudy, with a high near 43. Southwest wind 3 to 6 mph.
Tonight
A slight chance of light rain between 1am and 2am. Cloudy, with a low around 34. South wind around 7 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 48. West wind 3 to 7 mph.
Tuesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 36. Light and variable wind becoming southeast around 6 mph after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain. High near 50. Southeast wind 6 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Partly sunny, with a high near 51.
Thursday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Friday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 44. Chance of precipitation is 70%.
Friday Night
A chance of rain and snow before 1am, then a chance of rain. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
Saturday
A chance of snow. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Sunday
A chance of snow. Partly sunny, with a high near 34. Chance of precipitation is 40%.
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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:
8:56 am EST Feb 16, 2026
Forecast Valid:
9am EST Feb 16, 2026-6pm EST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation