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

36°F

2°C

Humidity 75%
Wind Speed Calm
Barometer 30.24 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 24 Dec 9:55 pm EST
Extended Forecast for

8 Miles WSW Galeton PA

Winter Storm Watch December 26, 07:00am until December 27, 07:00am
Click here for hazard details and duration
Winter Storm Watch

  • Tonight

    Tonight: A slight chance of snow and freezing rain between midnight and 2am. Mostly cloudy, with a low around 27. Southwest wind 5 to 7 mph. Chance of precipitation is 20%.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance Wintry
    Mix

  • Christmas Day

    Christmas Day: Mostly sunny, with a high near 39. Southwest wind 6 to 13 mph becoming north in the afternoon. Winds could gust as high as 24 mph.

    High: 39 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 17. North wind 5 to 13 mph, with gusts as high as 24 mph.

    Low: 17 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of snow before 1pm, then snow, freezing rain, and sleet. High near 26. Light east wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.

    High: 26 °F

    Chance Snow
    then Wintry
    Mix

  • Friday Night

    Friday Night: Snow, freezing rain, and sleet before 10pm, then snow and freezing rain between 10pm and 1am, then a chance of freezing rain after 1am. Low around 20. Southeast wind 5 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow and sleet accumulation of less than one inch possible.

    Low: 20 °F

    Wintry Mix

  • Saturday

    Saturday: A slight chance of freezing rain and sleet before 1pm. Mostly cloudy, with a high near 33. Chance of precipitation is 20%.

    High: 33 °F

    Slight Chance
    Wintry Mix

  • Saturday Night

    Saturday Night: Cloudy, with a low around 24.

    Low: 24 °F

    Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 38. Chance of precipitation is 70%.

    High: 38 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers. Low around 30. Chance of precipitation is 90%.

    Low: 30 °F

    Showers

Detailed Forecast

Tonight
A slight chance of snow and freezing rain between midnight and 2am. Mostly cloudy, with a low around 27. Southwest wind 5 to 7 mph. Chance of precipitation is 20%.
Christmas Day
Mostly sunny, with a high near 39. Southwest wind 6 to 13 mph becoming north in the afternoon. Winds could gust as high as 24 mph.
Thursday Night
Mostly cloudy, with a low around 17. North wind 5 to 13 mph, with gusts as high as 24 mph.
Friday
A chance of snow before 1pm, then snow, freezing rain, and sleet. High near 26. Light east wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.
Friday Night
Snow, freezing rain, and sleet before 10pm, then snow and freezing rain between 10pm and 1am, then a chance of freezing rain after 1am. Low around 20. Southeast wind 5 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow and sleet accumulation of less than one inch possible.
Saturday
A slight chance of freezing rain and sleet before 1pm. Mostly cloudy, with a high near 33. Chance of precipitation is 20%.
Saturday Night
Cloudy, with a low around 24.
Sunday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 38. Chance of precipitation is 70%.
Sunday Night
Showers. Low around 30. Chance of precipitation is 90%.
Monday
Rain and snow showers likely before 1pm, then a chance of snow showers. Mostly cloudy, with a high near 34. Chance of precipitation is 60%.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 15. Chance of precipitation is 50%.
Tuesday
Mostly cloudy, with a high near 22.
Tuesday Night
Mostly cloudy, with a low around 16.
Wednesday
A chance of snow showers. Mostly cloudy, with a high near 26. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WSW Galeton PA
 41.69°N 77.77°W (Elev. 1699 ft)
Last Update:
8:02 pm EST Dec 24, 2025
Forecast Valid:
10pm EST Dec 24, 2025-6pm EST Dec 31, 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