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

16°F

-9°C

Humidity 86%
Wind Speed SW 10 mph
Barometer 29.69 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 2 Jan 3:55 am EST
Extended Forecast for

3 Miles S Kersey PA

  • Overnight

    Overnight: A slight chance of snow showers. Cloudy, with a low around 12. Wind chill values as low as zero. West wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 12 °F

    Slight Chance
    Snow Showers

  • Friday

    Friday: A slight chance of snow showers before 8am. Mostly cloudy, with a high near 22. Wind chill values as low as zero. West wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 22 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 14. West wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 14 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 24. West wind 5 to 7 mph.

    High: 24 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of snow showers. Mostly cloudy, with a low around 18. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 40%.

    Low: 18 °F

    Chance Snow
    Showers

  • Sunday

    Sunday: Mostly cloudy, with a high near 26.

    High: 26 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 13.

    Low: 13 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of snow before 1pm. Mostly cloudy, with a high near 31. Chance of precipitation is 30%.

    High: 31 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of snow showers. Cloudy, with a low around 12. Wind chill values as low as zero. West wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Friday
A slight chance of snow showers before 8am. Mostly cloudy, with a high near 22. Wind chill values as low as zero. West wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 14. West wind 8 to 10 mph, with gusts as high as 21 mph.
Saturday
Mostly cloudy, with a high near 24. West wind 5 to 7 mph.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 18. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 40%.
Sunday
Mostly cloudy, with a high near 26.
Sunday Night
Mostly cloudy, with a low around 13.
Monday
A chance of snow before 1pm. Mostly cloudy, with a high near 31. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
A chance of rain after 1pm. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 34. Chance of precipitation is 50%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 41. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
Mostly cloudy, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Kersey PA
 41.29°N 78.63°W (Elev. 1896 ft)
Last Update:
1:19 am EST Jan 2, 2026
Forecast Valid:
4am EST Jan 2, 2026-6pm EST Jan 8, 2026
 
Forecast Discussion
 
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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