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

28°F

-2°C

Humidity 74%
Wind Speed W 12 mph
Barometer 30.14 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 12 Jan 5:55 am EST
Extended Forecast for

2 Miles ENE Brockport PA

  • Today

    Today: Mostly cloudy, with a high near 34. West wind 11 to 15 mph, with gusts as high as 31 mph.

    High: 34 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 27. Southwest wind 8 to 10 mph, with gusts as high as 22 mph.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 41. Southwest wind 7 to 10 mph, with gusts as high as 22 mph.

    High: 41 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 36. Southwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday

    Wednesday: Rain. High near 39. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 39 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain and snow, becoming all snow after 10pm. Low around 21. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 21 °F

    Rain/Snow
    then Snow

  • Thursday

    Thursday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 25. Chance of precipitation is 60%.

    High: 25 °F

    Snow Likely

  • Thursday Night

    Thursday Night: A chance of snow before 1am. Mostly cloudy, with a low around 13. Chance of precipitation is 30%.

    Low: 13 °F

    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 34. West wind 11 to 15 mph, with gusts as high as 31 mph.
Tonight
Partly cloudy, with a low around 27. Southwest wind 8 to 10 mph, with gusts as high as 22 mph.
Tuesday
Partly sunny, with a high near 41. Southwest wind 7 to 10 mph, with gusts as high as 22 mph.
Tuesday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 36. Southwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain. High near 39. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain and snow, becoming all snow after 10pm. Low around 21. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Thursday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 25. Chance of precipitation is 60%.
Thursday Night
A chance of snow before 1am. Mostly cloudy, with a low around 13. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 26.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.
Saturday
Snow showers likely. Mostly cloudy, with a high near 30. Chance of precipitation is 60%.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 14. Chance of precipitation is 40%.
Sunday
A chance of snow showers. Partly sunny, with a high near 21. Chance of precipitation is 40%.
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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:
3:12 am EST Jan 12, 2026
Forecast Valid:
6am EST Jan 12, 2026-6pm EST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation