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Hazardous Weather Conditions
Current conditions at
St Marys Municipal Airport (KOYM)
Lat: 41.41°NLon: 78.5°WElev: 1934ft.
Overcast
30°F
-1°C
| Humidity | 93% |
| Wind Speed | S 6 mph |
| Barometer | 29.98 in |
| Dewpoint | 28°F (-2°C) |
| Visibility | 7.00 mi |
| Wind Chill | 24°F (-4°C) |
| Last update | 21 Jan 6:15 pm EST |
Extended Forecast for
4 Miles NW Sinnamahoning PA
Winter Weather Advisory January 21, 06:28pm until January 22, 10:00am
NOW until 10:00am Thu
Winter Weather Advisory
Tonight
Low: 26 °F
Wintry Mix
then Chance
Wintry MixThursday
High: 30 °F
Partly Sunny
Thursday Night
Low: 14 °F
Partly Cloudy
Friday
High: 20 °F
Partly Sunny
Friday Night
Low: 0 °F
Mostly Cloudy
Saturday
High: 11 °F
Partly Sunny
Saturday Night
Low: 5 °F
Chance Snow
then Snow
LikelySunday
High: 14 °F
Snow
Detailed Forecast
Tonight
Snow and freezing rain before 1am, then a chance of drizzle, snow, and freezing rain between 1am and 4am. Low around 26. Southwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. Total nighttime snow accumulation of less than one inch possible.
Thursday
Partly sunny, with a high near 30. West wind around 14 mph, with gusts as high as 31 mph.
Thursday Night
Partly cloudy, with a low around 14. West wind around 10 mph, with gusts as high as 24 mph.
Friday
Partly sunny, with a high near 20. Wind chill values as low as -5. West wind 11 to 14 mph, with gusts as high as 30 mph.
Friday Night
Mostly cloudy, with a low around 0. Northwest wind 7 to 11 mph, with gusts as high as 24 mph.
Saturday
Partly sunny, with a high near 11.
Saturday Night
Snow likely, mainly after 1am. Mostly cloudy, with a low around 5. Chance of precipitation is 70%.
Sunday
Snow. High near 14. Chance of precipitation is 80%.
Sunday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 9. Chance of precipitation is 60%.
Monday
A chance of snow before 1pm. Mostly cloudy, with a high near 17. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 2.
Tuesday
Mostly sunny, with a high near 16.
Tuesday Night
Mostly cloudy, with a low around 6.
Wednesday
A chance of snow. Mostly cloudy, with a high near 20. 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)
2:26 pm EST Jan 21, 2026
6pm EST Jan 21, 2026-6pm EST Jan 28, 2026
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