National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
News Headlines

Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Fair

-6°F

-21°C

Humidity 77%
Wind Speed W 5 mph
Barometer 30.48 in
Dewpoint -11°F (-24°C)
Visibility 10.00 mi
Wind Chill-18°F (-28°C)
Last update 24 Jan 2:35 am EST
Extended Forecast for

2 Miles ENE Brockport PA

Cold Weather Advisory January 24, 02:49am until January 24, 10:00am
Winter Storm Warning January 24, 10:00pm until January 26, 01:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning
  •  
    Cold Weather Advisory January 24, 02:49am until January 24, 10:00am

    NOW until 10:00am Sat

    Cold Weather Advisory

  • Overnight

    Low: -4 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 11. Wind chill values as low as -5. Calm wind.

    High: 11 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow, mainly after 4am. Low around 7. Wind chill values as low as -5. Calm wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 7 °F

    Slight Chance
    Snow then
    Snow

  • Sunday

    Sunday: Snow. The snow could be heavy at times. High near 16. Wind chill values as low as -5. East wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    High: 16 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Low around 12. East wind 5 to 7 mph becoming calm. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 12 °F

    Heavy Snow

  • Monday

    Monday: A chance of snow. Mostly cloudy, with a high near 18. Chance of precipitation is 40%.

    High: 18 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around -2.

    Low: -2 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 12.

    High: 12 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around -4. Wind chill values as low as -15. Northwest wind 3 to 5 mph.
Saturday
Partly sunny, with a high near 11. Wind chill values as low as -5. Calm wind.
Saturday Night
Snow, mainly after 4am. Low around 7. Wind chill values as low as -5. Calm wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Sunday
Snow. The snow could be heavy at times. High near 16. Wind chill values as low as -5. East wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Sunday Night
Snow. The snow could be heavy at times. Low around 12. East wind 5 to 7 mph becoming calm. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Monday
A chance of snow. Mostly cloudy, with a high near 18. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around -2.
Tuesday
Mostly cloudy, with a high near 12.
Tuesday Night
Mostly cloudy, with a low around 5.
Wednesday
A chance of snow showers after 1pm. Mostly cloudy, with a high near 14. Chance of precipitation is 30%.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 1. Chance of precipitation is 40%.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 14. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 2.
Friday
Mostly cloudy, with a high near 15.
Basemap Options
Click map to change the forecast location
Loading map...
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:
1:05 am EST Jan 24, 2026
Forecast Valid:
2am EST Jan 24, 2026-6pm EST Jan 30, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation