National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

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

Winter Weather Advisory until March 17, 05:00pm
Wind Advisory March 16, 06:05pm until March 17, 08:00am
Click here for hazard details and duration
Winter Weather Advisory
Wind Advisory
  •  
    Winter Weather Advisory until March 17, 05:00pm
    Wind Advisory March 16, 06:05pm until March 17, 08:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 17 °F

    Rain/Snow
    then Chance
    Snow and
    Breezy

  • Tuesday

    Tuesday: A slight chance of snow showers. Mostly cloudy, with a high near 25. Wind chill values as low as zero. Breezy, with a west wind 16 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.

    High: 25 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 14. West wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 14 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 32. South wind 6 to 9 mph.

    High: 32 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of snow, mainly after 2am. Mostly cloudy, with a low around 27. South wind around 7 mph. Chance of precipitation is 30%.

    Low: 27 °F

    Chance Snow

  • Thursday

    Thursday: A chance of rain and snow before 2pm, then a slight chance of rain. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.

    High: 43 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 48. Chance of precipitation is 40%.

    High: 48 °F

    Chance Rain

Detailed Forecast

Tonight
Rain and snow, becoming all snow after 7pm. The snow could be heavy at times. Low around 17. Wind chill values as low as zero. Breezy, with a west wind 15 to 20 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 5 inches possible.
Tuesday
A slight chance of snow showers. Mostly cloudy, with a high near 25. Wind chill values as low as zero. Breezy, with a west wind 16 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 14. West wind 7 to 10 mph, with gusts as high as 21 mph.
Wednesday
Partly sunny, with a high near 32. South wind 6 to 9 mph.
Wednesday Night
A chance of snow, mainly after 2am. Mostly cloudy, with a low around 27. South wind around 7 mph. Chance of precipitation is 30%.
Thursday
A chance of rain and snow before 2pm, then a slight chance of rain. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
A chance of rain. Mostly cloudy, with a high near 48. Chance of precipitation is 40%.
Friday Night
Rain likely, mainly before 2am. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Saturday
A chance of rain. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Sunday
A chance of rain. Mostly cloudy, with a high near 49. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Kersey PA
 41.29°N 78.63°W (Elev. 1896 ft)
Last Update:
4:46 pm EDT Mar 16, 2026
Forecast Valid:
6pm EDT Mar 16, 2026-6pm EDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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