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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
23°F
-5°C
| Humidity | 46% |
| Wind Speed | S 6 mph |
| Barometer | 30.15 in |
| Dewpoint | 5°F (-15°C) |
| Visibility | 10.00 mi |
| Wind Chill | 16°F (-9°C) |
| Last update | 21 Jan 10:55 am EST |
Extended Forecast for
6 Miles ESE Sinnamahoning PA
Winter Weather Advisory January 21, 12:00pm until January 22, 10:00am
Today
High: 32 °F
Heavy Snow
Tonight
Low: 26 °F
Wintry Mix
then Chance
Wintry MixThursday
High: 32 °F
Slight Chance
Snow ShowersThursday Night
Low: 13 °F
Partly Cloudy
Friday
High: 20 °F
Partly Sunny
Friday Night
Low: 0 °F
Mostly Cloudy
Saturday
High: 11 °F
Partly Sunny
Saturday Night
Low: 4 °F
Chance Snow
Sunday
High: 14 °F
Snow Likely
Detailed Forecast
Today
Snow showers, mainly after 1pm. The snow could be heavy at times. High near 32. South wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Drizzle, snow, freezing rain, and sleet before 1am, then a chance of drizzle, snow showers, and freezing rain between 1am and 4am, then a chance of snow showers after 4am. The snow could be heavy at times. Low around 26. South wind 11 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow and sleet accumulation of less than one inch possible.
Thursday
A slight chance of snow showers before 1pm. Mostly sunny, with a high near 32. West wind 13 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 13. West wind 11 to 13 mph, with gusts as high as 23 mph.
Friday
Partly sunny, with a high near 20. West wind around 14 mph, with gusts as high as 26 mph.
Friday Night
Mostly cloudy, with a low around 0.
Saturday
Partly sunny, with a high near 11.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 4. Chance of precipitation is 50%.
Sunday
Snow likely. Mostly cloudy, with a high near 14. Chance of precipitation is 70%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 6. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 18.
Monday Night
Mostly cloudy, with a low around 5.
Tuesday
Partly sunny, with a high near 19.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
6 Miles ESE Sinnamahoning PA
41.35°N 77.94°W (Elev. 1998 ft)
41.35°N 77.94°W (Elev. 1998 ft)
7:05 am EST Jan 21, 2026
11am EST Jan 21, 2026-6pm EST Jan 27, 2026
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