National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Fair

34°F

1°C

Humidity 93%
Wind Speed Calm
Barometer 29.90 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 15 Nov 2:55 am EST
Extended Forecast for

10 Miles WSW Galeton PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 4pm. High near 53. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 53 °F

    Partly Sunny
    then Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before midnight, then a slight chance of showers between midnight and 2am. Low around 34. Southwest wind 10 to 17 mph becoming northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 34 °F

    Showers then
    Slight Chance
    Showers

  • Sunday

    Sunday: Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 38. West wind around 16 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Snow Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of snow showers. Mostly cloudy, with a low around 26. Northwest wind around 16 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Chance Snow
    Showers

  • Monday

    Monday: A slight chance of snow showers. Mostly cloudy, with a high near 35. Chance of precipitation is 20%.

    High: 35 °F

    Slight Chance
    Snow Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of snow before 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.

    Low: 25 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 30. Calm wind.
Saturday
Showers, with thunderstorms also possible after 4pm. High near 53. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm before midnight, then a slight chance of showers between midnight and 2am. Low around 34. Southwest wind 10 to 17 mph becoming northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 38. West wind around 16 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 26. Northwest wind around 16 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Monday
A slight chance of snow showers. Mostly cloudy, with a high near 35. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
Mostly cloudy, with a high near 38.
Tuesday Night
A chance of snow before 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 41.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
A chance of rain. Mostly cloudy, with a high near 45. Chance of precipitation is 30%.
Thursday Night
Rain likely. Cloudy, with a low around 34. Chance of precipitation is 70%.
Friday
Rain likely. Mostly cloudy, with a high near 47. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles WSW Galeton PA
 41.65°N 77.83°W (Elev. 2113 ft)
Last Update:
3:13 am EST Nov 15, 2025
Forecast Valid:
3am EST Nov 15, 2025-6pm EST Nov 21, 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