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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

3 Miles NW Sinnamahoning PA

Wind Advisory until March 16, 11:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until March 16, 11:00am

    NOW until 11:00am 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 61. South wind around 14 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 61 °F

    Severe
    Thunderstorms

  • Monday Night

    Monday Night: Rain and snow showers, becoming all snow after 11pm. Low around 18. West wind 15 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 18 °F

    Rain/Snow
    then Snow
    Showers

  • Tuesday

    Tuesday: A slight chance of snow showers before 2pm. Mostly cloudy, with a high near 25. West wind 15 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.

    High: 25 °F

    Slight Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 16. West wind 9 to 14 mph, with gusts as high as 25 mph.

    Low: 16 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 34.

    High: 34 °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 41.

    High: 41 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers likely, mainly after 2am. Mostly cloudy, with a low around 44. Southeast wind 15 to 18 mph, with gusts as high as 38 mph. Chance of precipitation is 60%. 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 61. South wind around 14 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Rain and snow showers, becoming all snow after 11pm. Low around 18. West wind 15 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Tuesday
A slight chance of snow showers before 2pm. Mostly cloudy, with a high near 25. West wind 15 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 16. West wind 9 to 14 mph, with gusts as high as 25 mph.
Wednesday
Partly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Mostly cloudy, with a high near 41.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
A chance of showers after 2pm. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 34. Chance of precipitation is 50%.
Saturday
A chance of rain and snow showers. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
Partly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Sinnamahoning PA
 41.41°N 78.11°W (Elev. 2169 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

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation