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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

4 Miles SE Sinnamahoning PA

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

Wind Advisory March 16, 07:40am until March 16, 02:00pm

Click here for hazard details and duration

Winter Weather Advisory

Wind Advisory

Wind Advisory March 16, 07:40am until March 16, 02:00pm
NOW until 2:00pm Mon
Wind Advisory
Today
High: 63 °F
Severe
Thunderstorms
Tonight
Low: 19 °F
Heavy Snow
then Slight
Chance Snow
Showers
Tuesday
High: 28 °F
Chance Snow
Showers
Tuesday Night
Low: 17 °F
Partly Cloudy
Wednesday
High: 35 °F
Partly Sunny
Wednesday Night
Low: 27 °F
Slight Chance
Snow Showers
Thursday
High: 43 °F
Mostly Cloudy
then Chance
Rain/Snow
Thursday Night
Low: 32 °F
Chance
Rain/Snow

Detailed Forecast

Today

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 63. South wind around 14 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.

Tonight

Snow showers, mainly before 10pm. The snow could be heavy at times. Low around 19. West wind around 16 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Tuesday

A chance of snow showers, mainly before 2pm. Mostly cloudy, with a high near 28. West wind 14 to 17 mph, with gusts as high as 38 mph. Chance of precipitation is 30%.

Tuesday Night

Partly cloudy, with a low around 17. West wind 7 to 11 mph, with gusts as high as 24 mph.

Wednesday

Partly sunny, with a high near 35. South wind around 7 mph.

Wednesday Night

A slight chance of snow showers. Mostly cloudy, with a low around 27. Chance of precipitation is 20%.

Thursday

A chance of rain and snow showers after 2pm. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.

Thursday Night

A chance of rain and snow showers before 2am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

Friday

Partly sunny, with a high near 48.