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Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

34°F

1°C

Humidity 81%
Wind Speed SW 9 mph
Barometer 29.63 in
Dewpoint 28°F (-2°C)
Visibility 7.00 mi
Wind Chill27°F (-3°C)
Last update 10 Dec 3:15 am EST
Extended Forecast for

3 Miles WNW Weedville PA

Winter Weather Advisory December 10, 03:34am until December 12, 04:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 10, 03:34am until December 12, 04:00am

    NOW until 4:00am Fri

    Winter Weather Advisory

  • Overnight

    Low: 26 °F

    Snow

  • Wednesday

    Wednesday: Snow before noon, then rain and snow between noon and 4pm, then a chance of snow after 4pm. High near 36. Southwest wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 36 °F

    Snow then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow, mainly before 10pm, then a chance of snow showers after 10pm. Low around 19. Northwest wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 19 °F

    Snow then
    Chance Snow
    Showers

  • Thursday

    Thursday: Snow showers likely, mainly before 1pm. The snow could be heavy at times. Mostly cloudy, with a high near 24. West wind around 17 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 24 °F

    Heavy Snow

  • Thursday Night

    Thursday Night: A chance of snow showers. Mostly cloudy, with a low around 19. West wind 10 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New snow accumulation of 1 to 2 inches possible.

    Low: 19 °F

    Chance Snow
    Showers

  • Friday

    Friday: A chance of snow showers. Mostly cloudy, with a high near 27. Chance of precipitation is 30%.

    High: 27 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 16. Chance of precipitation is 60%.

    Low: 16 °F

    Snow Showers
    Likely

  • Saturday

    Saturday: A chance of snow showers. Mostly cloudy, with a high near 26. Chance of precipitation is 50%.

    High: 26 °F

    Chance Snow
    Showers

Detailed Forecast

Overnight
Snow, mainly after 4am. Low around 26. Southwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 2 inches possible.
Wednesday
Snow before noon, then rain and snow between noon and 4pm, then a chance of snow after 4pm. High near 36. Southwest wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow, mainly before 10pm, then a chance of snow showers after 10pm. Low around 19. Northwest wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Thursday
Snow showers likely, mainly before 1pm. The snow could be heavy at times. Mostly cloudy, with a high near 24. West wind around 17 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 19. West wind 10 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New snow accumulation of 1 to 2 inches possible.
Friday
A chance of snow showers. Mostly cloudy, with a high near 27. Chance of precipitation is 30%.
Friday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 16. Chance of precipitation is 60%.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 26. Chance of precipitation is 50%.
Saturday Night
Snow showers likely. Mostly cloudy, with a low around 13. Chance of precipitation is 70%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 19. Chance of precipitation is 50%.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 9. Chance of precipitation is 40%.
Monday
Mostly cloudy, with a high near 22.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 11. Chance of precipitation is 40%.
Tuesday
Mostly cloudy, with a high near 27.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Weedville PA
 41.28°N 78.57°W (Elev. 1821 ft)
Last Update:
2:41 am EST Dec 10, 2025
Forecast Valid:
3am EST Dec 10, 2025-6pm EST Dec 16, 2025
 
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