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

32°F

0°C

Humidity 64%
Wind Speed SW 10 G 18 mph
Barometer 29.77 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 9 Dec 8:15 pm EST
Extended Forecast for

6 Miles NW Westport PA

Winter Weather Advisory December 10, 01:00am until December 10, 10:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Snow likely, mainly after 4am. Mostly cloudy, with a low around 24. South wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 24 °F

    Mostly Cloudy
    then Snow
    Likely

  • Wednesday

    Wednesday: Snow, mainly before 2pm. High near 37. South wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 37 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow showers likely, mainly between 7pm and 1am. Mostly cloudy, with a low around 21. West wind 9 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Snow Showers
    Likely

  • Thursday

    Thursday: A chance of snow showers. Mostly cloudy, with a high near 26. West wind around 16 mph, with gusts as high as 31 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 26 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A chance of snow showers. Mostly cloudy, with a low around 20. West wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 20 °F

    Chance Snow
    Showers

  • Friday

    Friday: A chance of snow, mainly after 1pm. Mostly cloudy, with a high near 29. Chance of precipitation is 30%.

    High: 29 °F

    Chance Snow

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 18. Chance of precipitation is 50%.

    Low: 18 °F

    Chance Snow

  • Saturday

    Saturday: A chance of snow. Mostly cloudy, with a high near 29. Chance of precipitation is 40%.

    High: 29 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Snow likely. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.

    Low: 18 °F

    Snow Likely

Detailed Forecast

Tonight
Snow likely, mainly after 4am. Mostly cloudy, with a low around 24. South wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Snow, mainly before 2pm. High near 37. South wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow showers likely, mainly between 7pm and 1am. Mostly cloudy, with a low around 21. West wind 9 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 26. West wind around 16 mph, with gusts as high as 31 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 20. West wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Friday
A chance of snow, mainly after 1pm. Mostly cloudy, with a high near 29. Chance of precipitation is 30%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 18. Chance of precipitation is 50%.
Saturday
A chance of snow. Mostly cloudy, with a high near 29. Chance of precipitation is 40%.
Saturday Night
Snow likely. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.
Sunday
A chance of snow. Mostly cloudy, with a high near 24. Chance of precipitation is 50%.
Sunday Night
Mostly cloudy, with a low around 10.
Monday
Partly sunny, with a high near 24.
Monday Night
A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 27.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NW Westport PA
 41.37°N 77.91°W (Elev. 2093 ft)
Last Update:
7:06 pm EST Dec 9, 2025
Forecast Valid:
8pm EST Dec 9, 2025-6pm EST Dec 16, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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