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Hazardous Weather Conditions
Current conditions at
St Marys Municipal Airport (KOYM)
Lat: 41.41°NLon: 78.5°WElev: 1934ft.
Partly Cloudy
5°F
-15°C
| Humidity | 66% |
| Wind Speed | SW 14 G 20 mph |
| Barometer | 29.98 in |
| Dewpoint | -4°F (-20°C) |
| Visibility | 10.00 mi |
| Wind Chill | -12°F (-24°C) |
| Last update | 27 Jan 5:55 am EST |
Extended Forecast for
4 Miles NW Sinnamahoning PA
Cold Weather Advisory January 27, 07:00pm until January 28, 10:00am
Cold Weather Advisory January 27, 06:11am until January 27, 01:00pm
NOW until 1:00pm Tue
Cold Weather Advisory
Today
High: 12 °F
Partly Sunny
then Slight
Chance Snow
ShowersTonight

Low: 1 °F
Mostly Cloudy
Wednesday

High: 12 °F
Partly Sunny
Wednesday Night

Low: -1 °F
Mostly Cloudy
Thursday

High: 13 °F
Partly Sunny
Thursday Night

Low: -7 °F
Partly Cloudy
Friday

High: 11 °F
Mostly Sunny
Friday Night

Low: -6 °F
Mostly Cloudy
Detailed Forecast
Today
Intermittent flurries before 1pm, then a slight chance of snow showers between 1pm and 2pm, then intermittent flurries after 2pm. Mostly cloudy, with a high near 12. Wind chill values as low as -10. Southwest wind 10 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 1. Wind chill values as low as -10. West wind around 10 mph, with gusts as high as 24 mph.
Wednesday
Partly sunny, with a high near 12. Wind chill values as low as -15. West wind 7 to 9 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around -1. Wind chill values as low as -15. West wind around 8 mph.
Thursday
Partly sunny, with a high near 13. West wind 8 to 10 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around -7.
Friday
Mostly sunny, with a high near 11.
Friday Night
Mostly cloudy, with a low around -6.
Saturday
Partly sunny, with a high near 16.
Saturday Night
Mostly cloudy, with a low around 0.
Sunday
Partly sunny, with a high near 20.
Sunday Night
Partly cloudy, with a low around 5.
Monday
Mostly sunny, with a high near 24.
Additional Forecasts and Information
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ABOUT 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)
6:07 am EST Jan 27, 2026
6am EST Jan 27, 2026-6pm EST Feb 2, 2026



