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Hazardous Weather Conditions
Current conditions at
St Marys Municipal Airport (KOYM)
Lat: 41.41°NLon: 78.5°WElev: 1934ft.
Overcast
34°F
1°C
| Humidity | 93% |
| Wind Speed | W 17 G 24 mph |
| Barometer | 29.34 in |
| Dewpoint | 32°F (0°C) |
| Visibility | 2.50 mi |
| Wind Chill | 23°F (-5°C) |
| Last update | 15 Jan 1:15 am EST |
Extended Forecast for
4 Miles NW Sinnamahoning PA
Overnight
Low: 17 °F
Rain/Snow
Thursday
High: 21 °F
Snow Likely
Thursday Night
Low: 15 °F
Mostly Cloudy
Friday
High: 28 °F
Partly Sunny
then Chance
SnowFriday Night
Low: 25 °F
Chance Snow
Saturday
High: 34 °F
Snow
Saturday Night
Low: 16 °F
Chance Snow
Sunday
High: 22 °F
Partly Sunny
Sunday Night
Low: 12 °F
Mostly Cloudy
Detailed Forecast
Overnight
Rain before 2am, then snow. Low around 17. West wind 9 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
Thursday
Snow likely, mainly before 8am. Mostly cloudy, with a high near 21. West wind around 14 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
Mostly cloudy, with a low around 15. Wind chill values as low as zero. West wind around 14 mph, with gusts as high as 31 mph.
Friday
A chance of snow after 1pm. Partly sunny, with a high near 28. South wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 25. South wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Saturday
Snow. High near 34. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Saturday Night
A chance of snow before 1am. Mostly cloudy, with a low around 16. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 22.
Sunday Night
Mostly cloudy, with a low around 12.
M.L.King Day
Mostly cloudy, with a high near 20.
Monday Night
Mostly cloudy, with a low around 4.
Tuesday
Partly sunny, with a high near 12.
Tuesday Night
Mostly cloudy, with a low around 4.
Wednesday
Partly sunny, with a high near 21.
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)
1:16 am EST Jan 15, 2026
1am EST Jan 15, 2026-6pm EST Jan 21, 2026
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