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.

Partly Cloudy

45°F

7°C

Humidity 71%
Wind Speed SE 12 G 22 mph
Barometer 29.97 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 9 Jan 6:15 am EST
Extended Forecast for

3 Miles S Kersey PA

  • Today

    Today: Periods of rain, mainly between 10am and 2pm. High near 53. South wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. West wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain and snow before 10am, then rain. High near 40. East wind 5 to 7 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 40 °F

    Chance
    Rain/Snow
    then Rain

  • Saturday Night

    Saturday Night: Rain before 1am, then a slight chance of rain and snow showers. Low around 28. South wind 6 to 14 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 28 °F

    Rain then
    Rain/Snow

  • Sunday

    Sunday: Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 31. Breezy, with a west wind 14 to 20 mph, with gusts as high as 41 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 31 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: A slight chance of snow showers before 1am. Mostly cloudy, with a low around 22. Breezy. Chance of precipitation is 20%.

    Low: 22 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Monday

    Monday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

Detailed Forecast

Today
Periods of rain, mainly between 10am and 2pm. High near 53. South wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Mostly cloudy, with a low around 33. West wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.
Saturday
A chance of rain and snow before 10am, then rain. High near 40. East wind 5 to 7 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Saturday Night
Rain before 1am, then a slight chance of rain and snow showers. Low around 28. South wind 6 to 14 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday
Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 31. Breezy, with a west wind 14 to 20 mph, with gusts as high as 41 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Sunday Night
A slight chance of snow showers before 1am. Mostly cloudy, with a low around 22. Breezy. Chance of precipitation is 20%.
Monday
Partly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Partly sunny, with a high near 39.
Tuesday Night
A chance of rain and snow after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Wednesday
Rain and snow likely. Mostly cloudy, with a high near 37. Chance of precipitation is 60%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. Chance of precipitation is 50%.
Thursday
A chance of snow. Mostly cloudy, with a high near 29. Chance of precipitation is 30%.
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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:
2:06 am EST Jan 9, 2026
Forecast Valid:
6am EST Jan 9, 2026-6pm EST Jan 15, 2026
 
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