National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

37°F

3°C

Humidity 93%
Wind Speed SE 7 mph
Barometer 29.82 in
Dewpoint 36°F (2°C)
Visibility 4.00 mi
Wind Chill32°F (0°C)
Last update 10 Jan 5:15 pm EST
Extended Forecast for

7 Miles N Sinnamahoning PA

  • This Afternoon

    This Afternoon: Rain. High near 41. Southeast wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.

    High: 41 °F

    Rain

  • Tonight

    Tonight: Rain, mainly before 11pm. Low around 28. South wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 28 °F

    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow showers, mainly after 11am. Increasing clouds, with a high near 34. West wind 8 to 15 mph, with gusts as high as 36 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: A chance of snow showers, mainly before 9pm. Mostly cloudy, with a low around 25. West wind 13 to 16 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.

    Low: 25 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 36. West wind 9 to 11 mph, with gusts as high as 26 mph.

    High: 36 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 41. Chance of precipitation is 60%.

    High: 41 °F

    Rain Likely

Detailed Forecast

This Afternoon
Rain. High near 41. Southeast wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain, mainly before 11pm. Low around 28. South wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A chance of snow showers, mainly after 11am. Increasing clouds, with a high near 34. West wind 8 to 15 mph, with gusts as high as 36 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Sunday Night
A chance of snow showers, mainly before 9pm. Mostly cloudy, with a low around 25. West wind 13 to 16 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 36. West wind 9 to 11 mph, with gusts as high as 26 mph.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Partly sunny, with a high near 42.
Tuesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Wednesday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 41. Chance of precipitation is 60%.
Wednesday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 26.
Thursday Night
Mostly cloudy, with a low around 15.
Friday
A chance of snow showers. Partly sunny, with a high near 31. Chance of precipitation is 30%.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 21. Chance of precipitation is 30%.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles N Sinnamahoning PA
 41.5°N 78.06°W (Elev. 1237 ft)
Last Update:
5:06 pm EST Jan 10, 2026
Forecast Valid:
5pm EST Jan 10, 2026-6pm EST Jan 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation