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.

Partly Cloudy

32°F

0°C

Humidity 47%
Wind Speed Calm
Barometer 30.27 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 1 Dec 2:35 pm EST
Extended Forecast for

8 Miles WSW Galeton PA

Winter Weather Advisory December 2, 01:00am until December 2, 01:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Snow likely, mainly after 4am. Cloudy, with a low around 22. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 2 inches possible.

    Low: 22 °F

    Mostly Cloudy
    then Snow
    Likely

  • Tuesday

    Tuesday: Snow, mainly before 1pm. High near 32. South wind around 6 mph becoming light and variable. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 32 °F

    Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 19. North wind 3 to 6 mph.

    Low: 19 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 32. Calm wind becoming west 5 to 7 mph in the morning.

    High: 32 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of snow showers after 1am. Mostly cloudy, with a low around 23. Southwest wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 23 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Thursday

    Thursday: A chance of snow showers, mainly before 1pm. Partly sunny, with a high near 29. Chance of precipitation is 30%.

    High: 29 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Snow likely, mainly after 4am. Cloudy, with a low around 22. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 2 inches possible.
Tuesday
Snow, mainly before 1pm. High near 32. South wind around 6 mph becoming light and variable. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Tuesday Night
Mostly cloudy, with a low around 19. North wind 3 to 6 mph.
Wednesday
Partly sunny, with a high near 32. Calm wind becoming west 5 to 7 mph in the morning.
Wednesday Night
A slight chance of snow showers after 1am. Mostly cloudy, with a low around 23. Southwest wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Thursday
A chance of snow showers, mainly before 1pm. Partly sunny, with a high near 29. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 8.
Friday
Mostly sunny, with a high near 26.
Friday Night
Mostly cloudy, with a low around 17.
Saturday
Mostly cloudy, with a high near 34.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Sunday
A chance of snow. Mostly cloudy, with a high near 32. Chance of precipitation is 30%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 14. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WSW Galeton PA
 41.69°N 77.77°W (Elev. 1699 ft)
Last Update:
2:26 pm EST Dec 1, 2025
Forecast Valid:
3pm EST Dec 1, 2025-6pm EST Dec 8, 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