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Hazardous Weather Conditions
Current conditions at
St Marys Municipal Airport (KOYM)
Lat: 41.41°NLon: 78.5°WElev: 1934ft.
Overcast
32°F
0°C
| Humidity | 75% |
| Wind Speed | SW 8 G 18 mph |
| Barometer | 29.93 in |
| Dewpoint | 25°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 25°F (-4°C) |
| Last update | 22 Jan 5:15 am EST |
Extended Forecast for
4 Miles NW Sinnamahoning PA
Winter Storm Watch January 24, 10:00pm until January 26, 01:00pm
Winter Weather Advisory January 22, 05:35am until January 22, 10:00am
NOW until 10:00am Thu
Winter Weather Advisory
Overnight
Low: 26 °F
Slight Chance
Snow ShowersThursday
High: 31 °F
Chance Snow
Showers then
Mostly SunnyThursday Night
Low: 14 °F
Partly Cloudy
Friday
High: 20 °F
Partly Sunny
Friday Night
Low: 0 °F
Mostly Cloudy
Saturday
High: 12 °F
Partly Sunny
Saturday Night
Low: 6 °F
Chance Snow
then Snow
LikelySunday
High: 15 °F
Snow
Detailed Forecast
Overnight
A slight chance of snow showers. Mostly cloudy, with a low around 26. West wind around 15 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Thursday
A chance of snow showers, mainly before 9am. Mostly sunny, with a high near 31. West wind 15 to 17 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 14. West wind around 11 mph, with gusts as high as 25 mph.
Friday
Partly sunny, with a high near 20. Wind chill values as low as -10. West wind around 14 mph, with gusts as high as 31 mph.
Friday Night
Mostly cloudy, with a low around 0. Northwest wind 7 to 11 mph, with gusts as high as 25 mph.
Saturday
Partly sunny, with a high near 12.
Saturday Night
Snow likely, mainly after 1am. Mostly cloudy, with a low around 6. Chance of precipitation is 70%.
Sunday
Snow. High near 15. Chance of precipitation is 90%.
Sunday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 9. Chance of precipitation is 70%.
Monday
A chance of snow showers before 1pm. Mostly cloudy, with a high near 17. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 3.
Tuesday
Partly sunny, with a high near 18.
Tuesday Night
Mostly cloudy, with a low around 6.
Wednesday
A chance of snow showers. Mostly cloudy, with a high near 22. Chance of precipitation is 30%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles NW Sinnamahoning PA
41.44°N 78.1°W (Elev. 1818 ft)
41.44°N 78.1°W (Elev. 1818 ft)
2:41 am EST Jan 22, 2026
5am EST Jan 22, 2026-6pm EST Jan 28, 2026
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