National Weather Service

News Headlines

Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

32°F

0°C

Humidity	80%
Wind Speed	W 10 mph
Barometer	29.86 in
Dewpoint	27°F (-3°C)
Visibility	10.00 mi
Wind Chill	24°F (-4°C)
Last update	11 Jan 7:15 am EST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

6 Miles ESE Sinnamahoning PA

Today
High: 33 °F
Heavy Snow
Tonight
Low: 25 °F
Isolated Snow
Showers then
Mostly Cloudy
Monday
High: 35 °F
Mostly Sunny
Monday Night
Low: 28 °F
Partly Cloudy
Tuesday
High: 41 °F
Partly Sunny
Tuesday Night
Low: 35 °F
Chance
Showers
Wednesday
High: 39 °F
Showers
Likely
Wednesday Night
Low: 20 °F
Rain/Snow
Likely
Thursday
High: 26 °F
Chance Snow
Showers

Detailed Forecast

Today

Snow showers likely, mainly after 3pm. The snow could be heavy at times. Increasing clouds, with a high near 33. West wind 8 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than one inch possible.

Tonight

Isolated snow showers before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 25. West wind 13 to 16 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.

Monday

Mostly sunny, with a high near 35. West wind around 11 mph, with gusts as high as 24 mph.

Monday Night

Partly cloudy, with a low around 28. West wind 9 to 11 mph, with gusts as high as 21 mph.

Tuesday

Partly sunny, with a high near 41. Southwest wind around 9 mph.

Tuesday Night

A chance of showers, mainly after 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.

Wednesday

Showers likely, mainly after 1pm. Mostly cloudy, with a high near 39. Chance of precipitation is 70%.

Wednesday Night

Rain and snow showers likely before 1am, then a chance of snow showers. Mostly cloudy, with a low around 20. Chance of precipitation is 60%.