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Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

30°F

-1°C

Humidity 80%
Wind Speed W 10 G 21 mph
Barometer 29.50 in
Dewpoint 25°F (-4°C)
Visibility 4.00 mi
Wind Chill21°F (-6°C)
Last update 31 Dec 10:55 pm EST
Extended Forecast for

9 Miles NW Emporium PA

Winter Weather Advisory December 31, 10:59pm until January 1, 04:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 31, 10:59pm until January 1, 04:00pm

    NOW until 4:00pm Thu

    Winter Weather Advisory

  • Tonight

    Low: 9 °F

    Snow Showers
    then Snow
    Showers
    Likely

  • New Year's Day

    New Year's Day: A chance of snow showers, mainly between noon and 1pm. Partly sunny, with a high near 17. Wind chill values as low as -5. West wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 17 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A chance of snow showers. Mostly cloudy, with a low around 10. Wind chill values as low as zero. West wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 10 °F

    Chance Snow
    Showers

  • Friday

    Friday: A slight chance of snow showers before 1pm. Mostly cloudy, with a high near 23. Wind chill values as low as zero. West wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 23 °F

    Slight Chance
    Snow Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 13. West wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 13 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 26.

    High: 26 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of snow showers before 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 30%.

    Low: 15 °F

    Chance Snow
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 25.

    High: 25 °F

    Partly Sunny

Detailed Forecast

Tonight
Snow showers, mainly before 1am. Low around 9. Wind chill values as low as -5. Northwest wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.
New Year's Day
A chance of snow showers, mainly between noon and 1pm. Partly sunny, with a high near 17. Wind chill values as low as -5. West wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 10. Wind chill values as low as zero. West wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Friday
A slight chance of snow showers before 1pm. Mostly cloudy, with a high near 23. Wind chill values as low as zero. West wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 13. West wind 6 to 8 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, with a high near 26.
Saturday Night
A chance of snow showers before 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 25.
Sunday Night
Mostly cloudy, with a low around 13.
Monday
A chance of snow showers after 1pm. Mostly cloudy, with a high near 29. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Mostly cloudy, with a high near 35.
Tuesday Night
A chance of freezing rain. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 38. 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:
8:41 pm EST Dec 31, 2025
Forecast Valid:
10pm EST Dec 31, 2025-6pm EST Jan 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation