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

19°F

-7°C

Humidity 73%
Wind Speed W 15 G 28 mph
Barometer 29.48 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 15 Jan 6:15 am EST
Extended Forecast for

3 Miles S Kersey PA

  • Today

    Today: Snow likely, mainly before 3pm. Cloudy, with a high near 19. Wind chill values as low as zero. West wind 16 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than one inch possible.

    High: 19 °F

    Snow Likely

  • Tonight

    Tonight: A chance of snow, mainly before 7pm. Mostly cloudy, with a low around 12. Wind chill values as low as -5. West wind 14 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.

    Low: 12 °F

    Chance Snow
    then Mostly
    Cloudy

  • Friday

    Friday: A chance of snow after 1pm. Mostly cloudy, with a high near 28. Wind chill values as low as zero. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    High: 28 °F

    Partly Sunny
    then Chance
    Snow

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 25. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Chance Snow

  • Saturday

    Saturday: Snow. High near 33. South wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 33 °F

    Snow

  • Saturday Night

    Saturday Night: A chance of snow, mainly before 1am. Mostly cloudy, with a low around 13. Chance of precipitation is 40%.

    Low: 13 °F

    Chance Snow

  • Sunday

    Sunday: Partly sunny, with a high near 19.

    High: 19 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 10.

    Low: 10 °F

    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: A chance of snow after 1pm. Mostly cloudy, with a high near 18. Chance of precipitation is 30%.

    High: 18 °F

    Partly Sunny
    then Chance
    Snow

Detailed Forecast

Today
Snow likely, mainly before 3pm. Cloudy, with a high near 19. Wind chill values as low as zero. West wind 16 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than one inch possible.
Tonight
A chance of snow, mainly before 7pm. Mostly cloudy, with a low around 12. Wind chill values as low as -5. West wind 14 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
Friday
A chance of snow after 1pm. Mostly cloudy, with a high near 28. Wind chill values as low as zero. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Friday Night
A chance of snow. Mostly cloudy, with a low around 25. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Saturday
Snow. High near 33. South wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
A chance of snow, mainly before 1am. Mostly cloudy, with a low around 13. Chance of precipitation is 40%.
Sunday
Partly sunny, with a high near 19.
Sunday Night
Mostly cloudy, with a low around 10.
M.L.King Day
A chance of snow after 1pm. Mostly cloudy, with a high near 18. Chance of precipitation is 30%.
Monday Night
A chance of snow before 1am. Mostly cloudy, with a low around 2. Chance of precipitation is 30%.
Tuesday
Partly sunny and cold, with a high near 10.
Tuesday Night
Mostly cloudy, with a low around 3.
Wednesday
A chance of snow. Partly sunny, with a high near 20. Chance of precipitation is 30%.
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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:
5:46 am EST Jan 15, 2026
Forecast Valid:
6am EST Jan 15, 2026-6pm EST Jan 21, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation