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

39°F

4°C

Humidity 93%
Wind Speed SE 7 mph
Barometer 29.80 in
Dewpoint 37°F (3°C)
Visibility 7.00 mi
Wind Chill34°F (1°C)
Last update 10 Jan 6:35 pm EST
Extended Forecast for

3 Miles S Kersey PA

  • Tonight

    Tonight: Rain, mainly before 11pm. Low around 27. South wind 8 to 14 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 27 °F

    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: Snow showers likely, mainly between 10am and 4pm. Mostly cloudy, with a high near 30. Breezy, with a west wind 13 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 30 °F

    Snow Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: A chance of snow showers, mainly before 10pm. Mostly cloudy, with a low around 23. Breezy, with a west wind 16 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 40%.

    Low: 23 °F

    Chance Snow
    Showers and
    Breezy

  • Monday

    Monday: Partly sunny, with a high near 32. West wind 14 to 16 mph, with gusts as high as 30 mph.

    High: 32 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 26. West wind 10 to 14 mph, with gusts as high as 26 mph.

    Low: 26 °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. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.

    Low: 33 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain and snow likely. Mostly cloudy, with a high near 38. Chance of precipitation is 70%.

    High: 38 °F

    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: A chance of snow. Mostly cloudy, with a low around 17. Chance of precipitation is 40%.

    Low: 17 °F

    Chance Snow

Detailed Forecast

Tonight
Rain, mainly before 11pm. Low around 27. South wind 8 to 14 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Snow showers likely, mainly between 10am and 4pm. Mostly cloudy, with a high near 30. Breezy, with a west wind 13 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Sunday Night
A chance of snow showers, mainly before 10pm. Mostly cloudy, with a low around 23. Breezy, with a west wind 16 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 32. West wind 14 to 16 mph, with gusts as high as 30 mph.
Monday Night
Mostly cloudy, with a low around 26. West wind 10 to 14 mph, with gusts as high as 26 mph.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Wednesday
Rain and snow likely. Mostly cloudy, with a high near 38. Chance of precipitation is 70%.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 17. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 22.
Thursday Night
Mostly cloudy, with a low around 13.
Friday
A chance of snow showers. Mostly cloudy, with a high near 27. Chance of precipitation is 30%.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 20. Chance of precipitation is 40%.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 28. Chance of precipitation is 50%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Kersey PA
 41.28°N 78.6°W (Elev. 2067 ft)
Last Update:
5:06 pm EST Jan 10, 2026
Forecast Valid:
6pm EST Jan 10, 2026-6pm EST Jan 17, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation