National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 ***
Extended Forecast for

4 Miles SE Sinnamahoning PA

Wind Advisory until March 16, 08:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until March 16, 08:00am

    NOW until 8:00am Mon

    Wind Advisory

  • Tonight

    Low: 44 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers and possibly a thunderstorm. Some of the storms could be severe. High near 63. South wind 11 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 63 °F

    Severe
    Thunderstorms

  • Monday Night

    Monday Night: Rain showers, snow showers, and sleet, becoming all snow after 11pm. Low around 19. West wind around 14 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow and sleet accumulation of less than one inch possible.

    Low: 19 °F

    Wintry Mix
    then Snow
    Showers

  • Tuesday

    Tuesday: A slight chance of snow showers. Mostly cloudy, with a high near 26. West wind around 15 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.

    High: 26 °F

    Slight Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 16. West wind 8 to 11 mph, with gusts as high as 25 mph.

    Low: 16 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers likely, mainly after 2am. Mostly cloudy, with a low around 44. Southeast wind 13 to 15 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers and possibly a thunderstorm. Some of the storms could be severe. High near 63. South wind 11 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Rain showers, snow showers, and sleet, becoming all snow after 11pm. Low around 19. West wind around 14 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow and sleet accumulation of less than one inch possible.
Tuesday
A slight chance of snow showers. Mostly cloudy, with a high near 26. West wind around 15 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 16. West wind 8 to 11 mph, with gusts as high as 25 mph.
Wednesday
Partly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Mostly cloudy, with a high near 42.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
A chance of showers after 2pm. Mostly cloudy, with a high near 50. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 35. Chance of precipitation is 50%.
Saturday
A chance of rain and snow showers. Mostly cloudy, with a high near 50. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
Partly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Sinnamahoning PA
 41.34°N 78°W (Elev. 1906 ft)
Last Update:
3:06 pm EDT Mar 15, 2026
Forecast Valid:
6pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation