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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 E Sinnamahoning PA

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

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 50. South wind around 15 mph, with gusts as high as 38 mph.

    High: 50 °F

    Partly Sunny

  • Tonight

    Tonight: Showers likely, mainly after 2am. Mostly cloudy, with a low around 44. Southeast wind 11 to 14 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.

    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 10 to 13 mph becoming southwest in the afternoon. Winds could gust 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 11 to 13 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 14 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.

    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

This Afternoon
Partly sunny, with a high near 50. South wind around 15 mph, with gusts as high as 38 mph.
Tonight
Showers likely, mainly after 2am. Mostly cloudy, with a low around 44. Southeast wind 11 to 14 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 10 to 13 mph becoming southwest in the afternoon. Winds could gust 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 11 to 13 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 14 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 16.
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. 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%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Sinnamahoning PA
 41.38°N 78°W (Elev. 1988 ft)
Last Update:
2:21 pm EDT Mar 15, 2026
Forecast Valid:
2pm EDT Mar 15, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation