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Hazardous Weather Conditions
Current conditions at
St Marys Municipal Airport (KOYM)
Lat: 41.41°NLon: 78.5°WElev: 1934ft.
Mostly Cloudy
9°F
-13°C
| Humidity | 66% |
| Wind Speed | W 13 G 17 mph |
| Barometer | 30.25 in |
| Dewpoint | 0°F (-18°C) |
| Visibility | 10.00 mi |
| Wind Chill | -7°F (-22°C) |
| Last update | 20 Jan 10:35 am EST |
Extended Forecast for
3 Miles S Kersey PA
Winter Storm Watch January 21, 12:00pm until January 22, 10:00am
Cold Weather Advisory January 20, 10:57am until January 20, 12:00pm
NOW until 12:00pm Tue

Cold Weather Advisory
Today

High: 11 °F
Partly Sunny
Tonight

Low: 6 °F
Mostly Clear
Wednesday
High: 32 °F
Slight Chance
Snow Showers
then Snow
ShowersWednesday Night

Low: 24 °F
Snow Showers
LikelyThursday

High: 29 °F
Slight Chance
Snow ShowersThursday Night

Low: 9 °F
Partly Cloudy
Friday

High: 15 °F
Mostly Cloudy
Friday Night

Low: -3 °F
Mostly Cloudy
Detailed Forecast
Today
Partly sunny, with a high near 11. Wind chill values as low as -15. West wind 13 to 15 mph, with gusts as high as 28 mph.
Tonight
Mostly clear, with a low around 6. Wind chill values as low as -5. West wind 6 to 9 mph.
Wednesday
Snow showers, mainly after 1pm. High near 32. Wind chill values as low as -5. South wind 7 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 24. Southwest wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Thursday
A slight chance of snow showers before 1pm. Partly sunny, with a high near 29. West wind 14 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 9.
Friday
Mostly cloudy, with a high near 15.
Friday Night
Mostly cloudy, with a low around -3.
Saturday
Mostly cloudy and cold, with a high near 8.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 1. Chance of precipitation is 40%.
Sunday
A chance of snow. Mostly cloudy, with a high near 13. Chance of precipitation is 50%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 1. Chance of precipitation is 30%.
Monday
A chance of snow showers. Partly sunny, with a high near 16. Chance of precipitation is 30%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles S Kersey PA
41.29°N 78.63°W (Elev. 1896 ft)
41.29°N 78.63°W (Elev. 1896 ft)
7:06 am EST Jan 20, 2026
10am EST Jan 20, 2026-6pm EST Jan 26, 2026



