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Current conditions at
St Marys Municipal Airport (KOYM)
Lat: 41.41°NLon: 78.5°WElev: 1934ft.
Fair
12°F
-11°C
| Humidity | 62% |
| Wind Speed | E 3 mph |
| Barometer | 30.22 in |
| Dewpoint | 1°F (-17°C) |
| Visibility | 10.00 mi |
| Last update | 8 Dec 10:15 pm EST |
Extended Forecast for
3 Miles NW Sinnamahoning PA
Tonight

Low: 7 °F
Mostly Clear
Tuesday
High: 30 °F
Partly Sunny
then Chance
Snow ShowersTuesday Night
Low: 26 °F
Slight Chance
Snow Showers
then Snow
LikelyWednesday

High: 36 °F
Rain/Snow
Wednesday Night

Low: 23 °F
Snow
Thursday

High: 27 °F
Chance Snow
ShowersThursday Night

Low: 19 °F
Chance Snow
ShowersFriday

High: 27 °F
Chance Snow
ShowersFriday Night

Low: 17 °F
Snow Showers
Likely
Detailed Forecast
Tonight
Mostly clear, with a low around 7. Wind chill values as low as zero. Light and variable wind.
Tuesday
A chance of snow showers, mainly between 3pm and 5pm. Increasing clouds, with a high near 30. Wind chill values as low as -5. South wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Tuesday Night
A slight chance of snow showers between 7pm and 1am, then snow likely after 1am. Cloudy, with a low around 26. Southwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday
Snow before 10am, then snow, possibly mixed with rain between 10am and 4pm, then snow after 4pm. High near 36. Southwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow before 1am, then a chance of snow showers after 1am. Low around 23. West wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 27. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 19. Chance of precipitation is 50%.
Friday
A chance of snow showers. Mostly cloudy, with a high near 27. Chance of precipitation is 50%.
Friday Night
Snow showers likely. Mostly cloudy, with a low around 17. Chance of precipitation is 70%.
Saturday
Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 24. Chance of precipitation is 60%.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 12. Chance of precipitation is 50%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 22. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 8.
Monday
A chance of snow showers. Mostly cloudy, with a high near 24. Chance of precipitation is 30%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles NW Sinnamahoning PA
41.41°N 78.11°W (Elev. 2169 ft)
41.41°N 78.11°W (Elev. 2169 ft)
7:05 pm EST Dec 8, 2025
10pm EST Dec 8, 2025-6pm EST Dec 15, 2025


