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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

6 Miles ESE Sinnamahoning PA

Wind Advisory March 15, 04:00pm until March 16, 08:00am
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: A chance of snow. Mostly cloudy, with a low around 30. East wind around 8 mph. Chance of precipitation is 40%.

    Low: 30 °F

    Chance Snow

  • Sunday

    Sunday: Mostly cloudy, with a high near 49. South wind 10 to 16 mph, with gusts as high as 39 mph.

    High: 49 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 43. Southeast wind 14 to 16 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers, with thunderstorms also possible after 11am. Some of the storms could be severe. High near 60. South wind around 14 mph becoming southwest in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 60 °F

    Severe
    Thunderstorms

  • Monday Night

    Monday Night: Rain and snow showers, becoming all snow after 11pm. Low around 19. West wind 13 to 15 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 19 °F

    Rain/Snow
    then Snow
    Showers

  • Tuesday

    Tuesday: A chance of snow showers, mainly before 8am. Mostly cloudy, with a high near 27. Chance of precipitation is 30%.

    High: 27 °F

    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of snow. Mostly cloudy, with a low around 30. East wind around 8 mph. Chance of precipitation is 40%.
Sunday
Mostly cloudy, with a high near 49. South wind 10 to 16 mph, with gusts as high as 39 mph.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 43. Southeast wind 14 to 16 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers, with thunderstorms also possible after 11am. Some of the storms could be severe. High near 60. South wind around 14 mph becoming southwest in the afternoon. Winds could gust as high as 33 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 19. West wind 13 to 15 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Tuesday
A chance of snow showers, mainly before 8am. Mostly cloudy, with a high near 27. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 16.
Wednesday
Partly sunny, with a high near 35.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Mostly cloudy, with a high near 44.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
A chance of showers. Partly sunny, with a high near 50. Chance of precipitation is 30%.
Friday Night
Rain and snow showers likely. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Saturday
Rain and snow showers likely. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Sinnamahoning PA
 41.35°N 77.94°W (Elev. 1998 ft)
Last Update:
2:35 am EDT Mar 15, 2026
Forecast Valid:
4am EDT Mar 15, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation