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.

Overcast

32°F

0°C

Humidity 87%
Wind Speed N 7 mph
Barometer 29.81 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 10 Nov 5:55 am EST
Extended Forecast for

Penfield PA

  • Today

    Today: A chance of snow showers, mainly before 9am. Mostly cloudy, with a high near 38. Northwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 38 °F

    Chance Snow
    Showers

  • Tonight

    Tonight: Snow showers, mainly after 2am. Low around 22. West wind 8 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 22 °F

    Chance Snow
    Showers then
    Snow Showers

  • Veterans Day

    Veterans Day: Snow showers, mainly before 1pm. High near 38. West wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 38 °F

    Snow Showers

  • Tuesday Night

    Tuesday Night: A chance of snow showers. Mostly cloudy, with a low around 26. Southwest wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Chance Snow
    Showers

  • Wednesday

    Wednesday: A slight chance of snow showers before 10am, then a chance of rain showers. Mostly cloudy, with a high near 44. West wind 14 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Slight Chance
    Rain/Snow
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Rain showers likely before 1am, then a chance of rain and snow showers between 1am and 4am, then a chance of snow showers after 4am. Cloudy, with a low around 33. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 33 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of snow showers before 7am. Partly sunny, with a high near 45. Chance of precipitation is 30%.

    High: 45 °F

    Chance Snow
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

Detailed Forecast

Today
A chance of snow showers, mainly before 9am. Mostly cloudy, with a high near 38. Northwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Tonight
Snow showers, mainly after 2am. Low around 22. West wind 8 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Veterans Day
Snow showers, mainly before 1pm. High near 38. West wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 26. Southwest wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Wednesday
A slight chance of snow showers before 10am, then a chance of rain showers. Mostly cloudy, with a high near 44. West wind 14 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain showers likely before 1am, then a chance of rain and snow showers between 1am and 4am, then a chance of snow showers after 4am. Cloudy, with a low around 33. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
A chance of snow showers before 7am. Partly sunny, with a high near 45. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Partly sunny, with a high near 50.
Friday Night
A chance of showers after 1am. Partly cloudy, with a low around 27. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly cloudy, with a high near 52. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Penfield PA
 41.22°N 78.58°W (Elev. 1306 ft)
Last Update:
3:15 am EST Nov 10, 2025
Forecast Valid:
6am EST Nov 10, 2025-6pm EST Nov 16, 2025
 
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Additional Resources

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Chance of Precipitation