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Hazardous Weather Conditions
Current conditions at
St Marys Municipal Airport (KOYM)
Lat: 41.41°NLon: 78.5°WElev: 1934ft.
Overcast
5°F
-15°C
| Humidity | 72% |
| Wind Speed | W 9 mph |
| Barometer | 30.09 in |
| Dewpoint | -2°F (-19°C) |
| Visibility | 10.00 mi |
| Wind Chill | -9°F (-23°C) |
| Last update | 20 Jan 1:35 am EST |
Extended Forecast for
4 Miles NW Sinnamahoning PA
Cold Weather Advisory January 20, 01:52am until January 20, 12:00pm
NOW until 12:00pm Tue
Cold Weather Advisory
Overnight
Low: 2 °F
Mostly Cloudy
Tuesday
High: 13 °F
Partly Sunny
Tuesday Night
Low: 7 °F
Mostly Clear
Wednesday
High: 31 °F
Partly Sunny
then Snow
Showers
LikelyWednesday Night
Low: 24 °F
Snow Showers
LikelyThursday
High: 30 °F
Partly Sunny
Thursday Night
Low: 11 °F
Partly Cloudy
Friday
High: 17 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 2. Wind chill values as low as -15. West wind around 11 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 13. Wind chill values as low as -15. West wind 10 to 13 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly clear, with a low around 7. Wind chill values as low as -5. West wind 6 to 8 mph, with gusts as high as 20 mph.
Wednesday
Snow showers likely after 1pm. Mostly cloudy, with a high near 31. Wind chill values as low as zero. South wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 24. Southwest wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Thursday
Partly sunny, with a high near 30.
Thursday Night
Partly cloudy, with a low around 11.
Friday
Mostly cloudy, with a high near 17.
Friday Night
Mostly cloudy, with a low around -1.
Saturday
Partly sunny and cold, with a high near 10.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 2. Chance of precipitation is 40%.
Sunday
A chance of snow. Mostly cloudy, with a high near 14. Chance of precipitation is 40%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 2. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 17.
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)
1:06 am EST Jan 20, 2026
1am EST Jan 20, 2026-6pm EST Jan 26, 2026
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