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Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

10°F

-12°C

Humidity 79%
Wind Speed W 7 mph
Barometer 29.92 in
Dewpoint 5°F (-15°C)
Visibility 7.00 mi
Wind Chill-1°F (-18°C)
Last update 27 Jan 6:15 pm EST
Extended Forecast for

2 Miles ENE Brockport PA

Cold Weather Advisory January 27, 07:00pm until January 28, 10:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Snow showers likely, mainly before 10pm, then a chance of flurries after 1am. Mostly cloudy, with a low around -1. Wind chill values as low as -10. West wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Low: -1 °F

    Snow Showers
    Likely then
    Chance Snow
    Showers

  • Wednesday

    Wednesday: Partly sunny and cold, with a high near 10. Wind chill values as low as -15. West wind 6 to 9 mph.

    High: 10 °F

    Cold

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -1. Wind chill values as low as -10. West wind around 6 mph.

    Low: -1 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 12. Wind chill values as low as -15. West wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 12 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -8. West wind around 5 mph becoming calm in the evening.

    Low: -8 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 11.

    High: 11 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -11.

    Low: -11 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 14.

    High: 14 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around -1.

    Low: -1 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Snow showers likely, mainly before 10pm, then a chance of flurries after 1am. Mostly cloudy, with a low around -1. Wind chill values as low as -10. West wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Partly sunny and cold, with a high near 10. Wind chill values as low as -15. West wind 6 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around -1. Wind chill values as low as -10. West wind around 6 mph.
Thursday
Partly sunny, with a high near 12. Wind chill values as low as -15. West wind 6 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around -8. West wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 11.
Friday Night
Mostly cloudy, with a low around -11.
Saturday
Partly sunny, with a high near 14.
Saturday Night
Mostly cloudy, with a low around -1.
Sunday
Partly sunny, with a high near 19.
Sunday Night
Mostly cloudy, with a low around 4.
Monday
Partly sunny, with a high near 23.
Monday Night
Mostly cloudy, with a low around 9.
Tuesday
Partly sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Brockport PA
 41.29°N 78.69°W (Elev. 1585 ft)
Last Update:
3:56 pm EST Jan 27, 2026
Forecast Valid:
6pm EST Jan 27, 2026-6pm EST Feb 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation