National Weather Service

News Headlines

Pennsylvania Flood Awareness Week | March 16-20, 2026

Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

N/A

Humidity	NA
Wind Speed	NA
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	* Not a current observation *

More Information:

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

Extended Forecast for

6 Miles E Sinnamahoning PA

Wind Advisory March 16, 04:29am until March 16, 02:00pm

Winter Weather Advisory March 16, 05:00pm until March 17, 02:00am

Click here for hazard details and duration

Wind Advisory

Winter Weather Advisory

Wind Advisory March 16, 04:29am until March 16, 02:00pm
NOW until 2:00pm Mon
Wind Advisory
Overnight
Low: 52 °F
Showers
Likely
Monday
High: 65 °F
Severe
Thunderstorms
Monday Night
Low: 21 °F
Rain/Snow
then Slight
Chance Snow
Showers
Tuesday
High: 31 °F
Slight Chance
Snow Showers
Tuesday Night
Low: 18 °F
Partly Cloudy
Wednesday
High: 38 °F
Partly Sunny
Wednesday Night
Low: 27 °F
Mostly Cloudy
Thursday
High: 46 °F
Mostly Cloudy
then Chance
Showers

Detailed Forecast

Overnight

Showers likely. Mostly cloudy, with a steady temperature around 52. Southeast wind around 10 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Monday

A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and noon, then showers and possibly a thunderstorm after noon. Some of the storms could be severe. High near 65. South wind 10 to 13 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Monday Night

Snow showers, possibly mixed with rain before 10pm, then a chance of snow showers. The snow could be heavy at times. Low around 21. West wind 11 to 13 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

Tuesday

A slight chance of snow showers. Mostly cloudy, with a high near 31. West wind 11 to 14 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.

Tuesday Night

Partly cloudy, with a low around 18. West wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 23 mph.

Wednesday

Partly sunny, with a high near 38.

Wednesday Night

Mostly cloudy, with a low around 27.

Thursday

A chance of showers after 2pm. Mostly cloudy, with a high near 46. Chance of precipitation is 30%.

Thursday Night

A chance of showers before 2am. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

Friday

Partly sunny, with a high near 51.