Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

39°F

4°C

Humidity 87%
Wind Speed SE 8 mph
Barometer 29.88 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 10 Jan 2:55 pm EST
Extended Forecast for

3 Miles NW Sinnamahoning PA

  • This Afternoon

    This Afternoon: Showers.  High near 38. Southeast wind around 8 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 38 °F

    Showers

  • Tonight

    Tonight: Showers, mainly before 11pm.  Low around 27. South wind 9 to 13 mph becoming west after midnight. Winds could gust as high as 24 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 27 °F

    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow showers, mainly after 11am.  Partly sunny, with a high near 31. West wind 11 to 18 mph, with gusts as high as 38 mph.  Chance of precipitation is 40%.

    High: 31 °F

    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: A chance of snow showers, mainly before 8pm.  Mostly cloudy, with a low around 24. Breezy, with a west wind 16 to 21 mph, with gusts as high as 39 mph.  Chance of precipitation is 30%.

    Low: 24 °F

    Breezy.
    Chance Snow
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 33. West wind around 13 mph, with gusts as high as 28 mph.

    High: 33 °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 40.

    High: 40 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain after 1am.  Mostly cloudy, with a low around 35. Chance of precipitation is 30%.

    Low: 35 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: Rain and snow likely, mainly after 1pm.  Mostly cloudy, with a high near 39. Chance of precipitation is 60%.

    High: 39 °F

    Rain/Snow
    Likely

Detailed Forecast

This Afternoon
Showers. High near 38. Southeast wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers, mainly before 11pm. Low around 27. South wind 9 to 13 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A chance of snow showers, mainly after 11am. Partly sunny, with a high near 31. West wind 11 to 18 mph, with gusts as high as 38 mph. Chance of precipitation is 40%.
Sunday Night
A chance of snow showers, mainly before 8pm. Mostly cloudy, with a low around 24. Breezy, with a west wind 16 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 33. West wind around 13 mph, with gusts as high as 28 mph.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Wednesday
Rain and snow likely, mainly after 1pm. Mostly cloudy, with a high near 39. Chance of precipitation is 60%.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 18. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 23.
Thursday Night
Mostly cloudy, with a low around 14.
Friday
A chance of snow showers. Partly sunny, with a high near 28. 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 30.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Sinnamahoning PA
 41.41°N 78.11°W (Elev. 2169 ft)
1:06 pm EST Jan 10, 2026
3pm EST Jan 10, 2026-6pm EST Jan 17, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database