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

23°F

-5°C

Humidity 86%
Wind Speed W 15 G 23 mph
Barometer 29.59 in
Dewpoint 19°F (-7°C)
Visibility 3.00 mi
Wind Chill10°F (-12°C)
Last update 29 Dec 7:55 pm EST
Extended Forecast for

2 Miles WNW Emporium PA

Wind Advisory December 29, 08:02pm until December 30, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory December 29, 08:02pm until December 30, 12:00pm

    NOW until 12:00pm Tue

    Wind Advisory

  • Tonight

    Low: 18 °F

    Snow Showers
    Likely and
    Patchy
    Blowing Snow

  • Tuesday

    Tuesday: A chance of snow showers, mainly before 1pm. Patchy blowing snow before 9am. Mostly cloudy, with a high near 25. Breezy, with a west wind 13 to 22 mph, with gusts as high as 40 mph. Chance of precipitation is 40%.

    High: 25 °F

    Chance Snow
    Showers and
    Patchy
    Blowing Snow

  • Tuesday Night

    Tuesday Night: A chance of snow showers. Mostly cloudy, with a low around 17. West wind around 9 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 17 °F

    Chance Snow
    Showers

  • Wednesday

    Wednesday: Snow showers, mainly after 1pm. High near 28. West wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 28 °F

    Chance Snow
    Showers then
    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow showers, mainly before 1am. Low around 12. West wind around 7 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 12 °F

    Snow Showers

  • New Year's Day

    New Year's Day: A chance of snow showers, mainly before 1pm. Mostly cloudy, with a high near 20. Chance of precipitation is 30%.

    High: 20 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 26.

    High: 26 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Snow showers likely, mainly before 2am. Patchy blowing snow before 2am. Mostly cloudy, with a low around 18. Breezy, with a west wind around 23 mph, with gusts as high as 46 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than one inch possible.
Tuesday
A chance of snow showers, mainly before 1pm. Patchy blowing snow before 9am. Mostly cloudy, with a high near 25. Breezy, with a west wind 13 to 22 mph, with gusts as high as 40 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 17. West wind around 9 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Wednesday
Snow showers, mainly after 1pm. High near 28. West wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Snow showers, mainly before 1am. Low around 12. West wind around 7 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
New Year's Day
A chance of snow showers, mainly before 1pm. Mostly cloudy, with a high near 20. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 12.
Friday
Mostly cloudy, with a high near 26.
Friday Night
Mostly cloudy, with a low around 16.
Saturday
Mostly cloudy, with a high near 30.
Saturday Night
Mostly cloudy, with a low around 14.
Sunday
Partly sunny, with a high near 31.
Sunday Night
Mostly cloudy, with a low around 18.
Monday
A chance of snow showers. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Emporium PA
 41.54°N 78.26°W (Elev. 1398 ft)
Last Update:
7:06 pm EST Dec 29, 2025
Forecast Valid:
8pm EST Dec 29, 2025-6pm EST Jan 5, 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