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.

Overcast

21°F

-6°C

Humidity 68%
Wind Speed W 18 G 28 mph
Barometer 29.77 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 30 Dec 8:35 am EST
Extended Forecast for

9 Miles NW Emporium PA

Wind Advisory December 30, 08:44am until December 30, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory December 30, 08:44am until December 30, 12:00pm

    NOW until 12:00pm Tue

    Wind Advisory

  • Today

    High: 21 °F

    Snow Showers
    Likely and
    Areas Blowing
    Snow

  • Tonight

    Tonight: Snow showers likely, mainly between 3am and 4am. Areas of blowing snow before 9pm. Mostly cloudy, with a low around 15. West wind 10 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 15 °F

    Snow Showers
    Likely and
    Areas Blowing
    Snow

  • Wednesday

    Wednesday: Snow showers, mainly after 1pm. High near 24. Southwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 24 °F

    Chance Snow
    Showers then
    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow showers, mainly before 1am. Low around 11. Wind chill values as low as zero. West wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 11 °F

    Snow Showers

  • New Year's Day

    New Year's Day: A chance of snow showers. Partly sunny, with a high near 17. West wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 17 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 10. Chance of precipitation is 30%.

    Low: 10 °F

    Chance Snow
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 24.

    High: 24 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

Detailed Forecast

Today
Snow showers likely, mainly before noon. Areas of blowing snow. Cloudy, with a high near 21. Wind chill values as low as zero. West wind 15 to 18 mph, with gusts as high as 39 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow showers likely, mainly between 3am and 4am. Areas of blowing snow before 9pm. Mostly cloudy, with a low around 15. West wind 10 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
Snow showers, mainly after 1pm. High near 24. Southwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Snow showers, mainly before 1am. Low around 11. Wind chill values as low as zero. West wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
New Year's Day
A chance of snow showers. Partly sunny, with a high near 17. West wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Thursday Night
A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 10. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 24.
Friday Night
Mostly cloudy, with a low around 14.
Saturday
Mostly cloudy, with a high near 24.
Saturday Night
Mostly cloudy, with a low around 12.
Sunday
Mostly cloudy, with a high near 27.
Sunday Night
Mostly cloudy, with a low around 17.
Monday
A chance of snow showers. Mostly cloudy, with a high near 30. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NW Emporium PA
 41.59°N 78.37°W (Elev. 1942 ft)
Last Update:
7:05 am EST Dec 30, 2025
Forecast Valid:
8am EST Dec 30, 2025-6pm EST Jan 5, 2026
 
Forecast Discussion
 
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