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Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Fair

50°F

10°C

Humidity 47%
Wind Speed SW 8 mph
Barometer 29.73 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 10 Feb 3:15 pm EST
Extended Forecast for

4 Miles NW Sinnamahoning PA

  • Tonight

    Tonight: A slight chance of rain before 9pm, then a slight chance of snow and freezing rain after 5am. Mostly cloudy, with a low around 26. West wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 26 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow and freezing rain before 10am, then a chance of snow. Mostly cloudy, with a high near 30. West wind around 14 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.

    High: 30 °F

    Chance Wintry
    Mix then
    Chance Snow

  • Wednesday Night

    Wednesday Night: A chance of snow showers. Cloudy, with a low around 21. Northwest wind 10 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    Low: 21 °F

    Chance Snow
    Showers

  • Thursday

    Thursday: Mostly cloudy, with a high near 27. Northwest wind around 10 mph, with gusts as high as 23 mph.

    High: 27 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 15. Northwest wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 15 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of rain before 9pm, then a slight chance of snow and freezing rain after 5am. Mostly cloudy, with a low around 26. West wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday
A chance of snow and freezing rain before 10am, then a chance of snow. Mostly cloudy, with a high near 30. West wind around 14 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of snow showers. Cloudy, with a low around 21. Northwest wind 10 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Thursday
Mostly cloudy, with a high near 27. Northwest wind around 10 mph, with gusts as high as 23 mph.
Thursday Night
Mostly cloudy, with a low around 15. Northwest wind 6 to 8 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 32.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
Partly sunny, with a high near 37.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
A chance of snow after 1pm. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Washington's Birthday
Partly sunny, with a high near 41.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Sinnamahoning PA
 41.44°N 78.1°W (Elev. 1818 ft)
Last Update:
2:42 pm EST Feb 10, 2026
Forecast Valid:
3pm EST Feb 10, 2026-6pm EST Feb 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation