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 80%
Wind Speed SW 6 mph
Barometer 30.04 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 7 Dec 10:15 am EST
Extended Forecast for

2 Miles ENE Brockport PA

  • Today

    Today: A chance of snow, mainly between 1pm and 5pm. Cloudy, with a high near 33. Southwest wind 6 to 9 mph. Chance of precipitation is 30%.

    High: 33 °F

    Cloudy then
    Chance Snow

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 12. West wind 6 to 9 mph becoming north after midnight.

    Low: 12 °F

    Gradual
    Clearing

  • Monday

    Monday: Mostly sunny, with a high near 24. North wind around 6 mph becoming calm in the afternoon.

    High: 24 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 6. Calm wind.

    Low: 6 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of snow after 1pm. Mostly cloudy, with a high near 33. South wind 5 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    High: 33 °F

    Partly Sunny
    then Chance
    Snow

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 1am. Cloudy, with a low around 28. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 28 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: Rain before 1pm, then rain and snow. High near 39. Chance of precipitation is 90%.

    High: 39 °F

    Rain then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow, becoming all snow after 1am. Low around 24. Chance of precipitation is 80%.

    Low: 24 °F

    Rain/Snow

  • Thursday

    Thursday: A chance of snow. Mostly cloudy, with a high near 32. Chance of precipitation is 50%.

    High: 32 °F

    Chance Snow

Detailed Forecast

Today
A chance of snow, mainly between 1pm and 5pm. Cloudy, with a high near 33. Southwest wind 6 to 9 mph. Chance of precipitation is 30%.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 12. West wind 6 to 9 mph becoming north after midnight.
Monday
Mostly sunny, with a high near 24. North wind around 6 mph becoming calm in the afternoon.
Monday Night
Partly cloudy, with a low around 6. Calm wind.
Tuesday
A chance of snow after 1pm. Mostly cloudy, with a high near 33. South wind 5 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Tuesday Night
Snow likely, mainly after 1am. Cloudy, with a low around 28. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday
Rain before 1pm, then rain and snow. High near 39. Chance of precipitation is 90%.
Wednesday Night
Rain and snow, becoming all snow after 1am. Low around 24. Chance of precipitation is 80%.
Thursday
A chance of snow. Mostly cloudy, with a high near 32. Chance of precipitation is 50%.
Thursday Night
Snow likely, mainly after 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
Friday
Snow likely. Mostly cloudy, with a high near 30. Chance of precipitation is 60%.
Friday Night
Snow likely. Mostly cloudy, with a low around 14. Chance of precipitation is 70%.
Saturday
Snow likely. Mostly cloudy, with a high near 22. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Brockport PA
 41.29°N 78.69°W (Elev. 1585 ft)
Last Update:
7:36 am EST Dec 7, 2025
Forecast Valid:
10am EST Dec 7, 2025-6pm EST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation