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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

3 Miles S Kersey PA

  • Tonight

    Tonight: Showers, mainly before midnight. Low around 28. West wind 14 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 28 °F

    Showers

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 35. Northwest wind around 16 mph, with gusts as high as 33 mph.

    High: 35 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26. West wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 26 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow before 11am, then a chance of rain and snow between 11am and 5pm, then a chance of rain after 5pm. Mostly cloudy, with a high near 46. Breezy, with a south wind 10 to 20 mph, with gusts as high as 41 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 46 °F

    Chance
    Rain/Snow and
    Breezy

  • Friday Night

    Friday Night: A chance of rain before 11pm, then a slight chance of snow between 11pm and 2am. Mostly cloudy, with a low around 27. West wind around 17 mph, with gusts as high as 37 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 27 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of snow showers after 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.

    Low: 27 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Sunday

    Sunday: A chance of rain and snow showers before 2pm. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.

    High: 51 °F

    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Showers, mainly after 2am. Low around 39. Breezy. Chance of precipitation is 80%.

    Low: 39 °F

    Breezy.
    Chance
    Showers then
    Showers

Detailed Forecast

Tonight
Showers, mainly before midnight. Low around 28. West wind 14 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 35. Northwest wind around 16 mph, with gusts as high as 33 mph.
Thursday Night
Partly cloudy, with a low around 26. West wind 6 to 10 mph, with gusts as high as 21 mph.
Friday
A chance of snow before 11am, then a chance of rain and snow between 11am and 5pm, then a chance of rain after 5pm. Mostly cloudy, with a high near 46. Breezy, with a south wind 10 to 20 mph, with gusts as high as 41 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Friday Night
A chance of rain before 11pm, then a slight chance of snow between 11pm and 2am. Mostly cloudy, with a low around 27. West wind around 17 mph, with gusts as high as 37 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 39.
Saturday Night
A chance of snow showers after 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
Sunday
A chance of rain and snow showers before 2pm. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.
Sunday Night
Showers, mainly after 2am. Low around 39. Breezy. Chance of precipitation is 80%.
Monday
Rain, possibly mixed with snow showers before 2pm, then a chance of snow showers. High near 47. Breezy. Chance of precipitation is 80%.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 17. Chance of precipitation is 30%.
Tuesday
A chance of snow showers. Mostly cloudy, with a high near 26. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 15.
Wednesday
Partly sunny, with a high near 33.
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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:
8:16 pm EDT Mar 11, 2026
Forecast Valid:
11pm EDT Mar 11, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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