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Hazardous Weather Conditions
Current conditions at
St Marys Municipal Airport (KOYM)
Lat: 41.41°NLon: 78.5°WElev: 1934ft.
Overcast
34°F
1°C
| Humidity | 87% |
| Wind Speed | W 14 G 20 mph |
| Barometer | 29.90 in |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 25°F (-4°C) |
| Last update | 17 Nov 12:15 pm EST |
Extended Forecast for
2 Miles ENE Brockport PA
Lake Effect Snow Warning November 17, 12:31pm until November 17, 01:00pm
NOW until 1:00pm Mon
Lake Effect Snow Warning
This Afternoon
High: 38 °F
Snow Showers
Tonight
Low: 24 °F
Mostly Cloudy
Tuesday
High: 40 °F
Slight Chance
Snow Showers
then Chance
Rain/SnowTuesday Night
Low: 30 °F
Chance
Rain/SnowWednesday
High: 46 °F
Partly Sunny
Wednesday Night
Low: 31 °F
Mostly Cloudy
Thursday
High: 49 °F
Mostly Cloudy
Thursday Night
Low: 39 °F
Chance
Showers then
Showers
Likely
Detailed Forecast
This Afternoon
Snow showers, mainly before 1pm. High near 38. West wind around 15 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.
Tonight
Mostly cloudy, with a low around 24. West wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 21 mph.
Tuesday
A chance of snow showers before 4pm, then a chance of rain showers. Mostly cloudy, with a high near 40. West wind 3 to 6 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of rain showers before 7pm, then a chance of rain and snow showers between 7pm and 4am, then a slight chance of rain showers after 4am. Mostly cloudy, with a low around 30. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Partly sunny, with a high near 46. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
Mostly cloudy, with a high near 49.
Thursday Night
Showers likely, mainly after 1am. Cloudy, with a low around 39. Chance of precipitation is 70%.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.
Friday Night
Showers likely. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Saturday
A chance of showers. Partly sunny, with a high near 46. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Partly cloudy, with a low around 29. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 47.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles ENE Brockport PA
41.29°N 78.69°W (Elev. 1585 ft)
41.29°N 78.69°W (Elev. 1585 ft)
11:11 am EST Nov 17, 2025
12pm EST Nov 17, 2025-6pm EST Nov 23, 2025
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