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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

2 Miles ENE Brockport PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 65. Southwest wind around 11 mph, with gusts as high as 22 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 47. Southwest wind around 5 mph.

    Low: 47 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 66. Southwest wind 5 to 9 mph.

    High: 66 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 56. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms before 11am, then showers between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. Some of the storms could be severe. High near 69. South wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 69 °F

    Showers then
    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Rain showers before 5am, then a chance of rain and snow showers. Some thunder is also possible. Low around 30. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Severe
    Thunderstorms
    then
    Rain/Snow

  • Thursday

    Thursday: A chance of snow showers before 8am. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.

    High: 38 °F

    Chance Snow
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow showers before 2pm, then rain and snow showers likely. Mostly cloudy, with a high near 46. Chance of precipitation is 60%.

    High: 46 °F

    Chance Snow
    Showers then
    Rain/Snow
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 65. Southwest wind around 11 mph, with gusts as high as 22 mph.
Tonight
Increasing clouds, with a low around 47. Southwest wind around 5 mph.
Tuesday
Partly sunny, with a high near 66. Southwest wind 5 to 9 mph.
Tuesday Night
A chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 56. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and thunderstorms before 11am, then showers between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. Some of the storms could be severe. High near 69. South wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Rain showers before 5am, then a chance of rain and snow showers. Some thunder is also possible. Low around 30. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow showers before 8am. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 25.
Friday
A chance of snow showers before 2pm, then rain and snow showers likely. Mostly cloudy, with a high near 46. Chance of precipitation is 60%.
Friday Night
Rain and snow showers likely, mainly before 8pm. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.
Saturday
Partly sunny, with a high near 42.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Sunday
Rain and snow showers likely. Mostly cloudy, with a high near 52. Chance of precipitation is 60%.
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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:
12:21 pm EDT Mar 9, 2026
Forecast Valid:
12pm EDT Mar 9, 2026-6pm EDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation