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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 W 15 G 25 mph
Barometer 30.01 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 28 Nov 12:55 pm EST
Extended Forecast for

11 Miles WSW Galeton PA

Lake Effect Snow Warning November 28, 01:02pm until November 29, 01:00am
Click here for hazard details and duration
Lake Effect Snow Warning
  •  
    Lake Effect Snow Warning November 28, 01:02pm until November 29, 01:00am

    NOW until 1:00am Sat

    Lake Effect Snow Warning

  • This Afternoon

    High: 31 °F

    Heavy Snow

  • Tonight

    Tonight: Snow showers likely, mainly before 7pm. The snow could be heavy at times. Mostly cloudy, with a low around 22. West wind 9 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 22 °F

    Heavy Snow
    then
    Scattered
    Snow Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 32. West wind 5 to 7 mph becoming calm in the afternoon.

    High: 32 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Snow, mainly after 1am. Low around 25. Light southeast wind becoming south 9 to 14 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 25 °F

    Slight Chance
    Snow then
    Snow

  • Sunday

    Sunday: Snow before 1pm, then rain and snow likely. High near 36. South wind 11 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 36 °F

    Snow then
    Rain/Snow

  • Sunday Night

    Sunday Night: A chance of snow. Mostly cloudy, with a low around 22. Chance of precipitation is 40%.

    Low: 22 °F

    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of snow after 1am. Cloudy, with a low around 19. Chance of precipitation is 40%.

    Low: 19 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

This Afternoon
Frequent snow showers. The snow could be heavy at times. High near 31. West wind around 14 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Snow showers likely, mainly before 7pm. The snow could be heavy at times. Mostly cloudy, with a low around 22. West wind 9 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Saturday
Mostly cloudy, with a high near 32. West wind 5 to 7 mph becoming calm in the afternoon.
Saturday Night
Snow, mainly after 1am. Low around 25. Light southeast wind becoming south 9 to 14 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Sunday
Snow before 1pm, then rain and snow likely. High near 36. South wind 11 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 22. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 28.
Monday Night
A chance of snow after 1am. Cloudy, with a low around 19. Chance of precipitation is 40%.
Tuesday
Snow likely. Mostly cloudy, with a high near 30. Chance of precipitation is 60%.
Tuesday Night
A chance of snow before 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.
Wednesday
Mostly cloudy, with a high near 29.
Wednesday Night
Mostly cloudy, with a low around 20.
Thursday
A chance of snow. Mostly cloudy, with a high near 29. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Galeton PA
 41.65°N 77.83°W (Elev. 2113 ft)
Last Update:
12:56 pm EST Nov 28, 2025
Forecast Valid:
1pm EST Nov 28, 2025-6pm EST Dec 4, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation