Current conditions at
St Marys Municipal Airport (KOYM)
Lat: 41.41°NLon: 78.5°WElev: 1934ft.
Overcast
18°F
-8°C
| Humidity | 73% |
| Wind Speed | W 15 G 23 mph |
| Barometer | 29.66 in |
| Dewpoint | 10°F (-12°C) |
| Visibility | 7.00 mi |
| Wind Chill | 4°F (-16°C) |
| Last update | 15 Jan 11:35 pm EST |
Extended Forecast for
4 Miles NW Sinnamahoning PA
Tonight

Low: 14 °F
Mostly Cloudy
Friday
High: 28 °F
Partly Sunny
then Chance
SnowFriday Night

Low: 25 °F
Chance Snow
Saturday

High: 35 °F
Snow Showers
Saturday Night

Low: 15 °F
Chance Snow
ShowersSunday

High: 21 °F
Partly Sunny
Sunday Night

Low: 13 °F
Mostly Cloudy
M.L.King Day
High: 21 °F
Mostly Cloudy
then Chance
Snow ShowersMonday Night

Low: 1 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly cloudy, with a low around 14. Wind chill values as low as zero. West wind 13 to 15 mph, with gusts as high as 30 mph.
Friday
A chance of snow after 4pm. Partly sunny, with a high near 28. West wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 30%.
Friday Night
A chance of snow, mainly after 1am. 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 showers. High near 35. South wind around 8 mph becoming southwest in the afternoon. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
A chance of snow showers before 1am. Mostly cloudy, with a low around 15. West wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 21.
Sunday Night
Mostly cloudy, with a low around 13.
M.L.King Day
A chance of snow showers after 1pm. Mostly cloudy, with a high near 21. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 1.
Tuesday
Partly sunny and cold, with a high near 10.
Tuesday Night
Mostly cloudy, with a low around 4.
Wednesday
A chance of snow showers. Mostly cloudy, with a high near 24. Chance of precipitation is 30%.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 16. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 26.
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)
7:06 pm EST Jan 15, 2026
11pm EST Jan 15, 2026-6pm EST Jan 22, 2026


