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

  • Overnight

    Overnight: A chance of snow. Cloudy, with a low around 29. East wind around 6 mph. Chance of precipitation is 40%.

    Low: 29 °F

    Chance Snow

  • Sunday

    Sunday: A chance of snow before 7am. Mostly cloudy, with a high near 49. Southeast wind 13 to 17 mph, with gusts as high as 41 mph. Chance of precipitation is 30%.

    High: 49 °F

    Chance Snow
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 43. Southeast wind 16 to 18 mph, with gusts as high as 41 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers, with thunderstorms also possible after 11am. Some of the storms could be severe. High near 58. South wind around 15 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: 58 °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 37 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 18 °F

    Rain/Snow
    then Snow
    Showers

  • Tuesday

    Tuesday: A chance of snow showers, mainly before 2pm. Mostly cloudy, with a high near 25. Chance of precipitation is 30%.

    High: 25 °F

    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 34.

    High: 34 °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. Cloudy, with a low around 29. East wind around 6 mph. Chance of precipitation is 40%.
Sunday
A chance of snow before 7am. Mostly cloudy, with a high near 49. Southeast wind 13 to 17 mph, with gusts as high as 41 mph. Chance of precipitation is 30%.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 43. Southeast wind 16 to 18 mph, with gusts as high as 41 mph. Chance of precipitation is 60%. 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 58. South wind around 15 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 18. West wind 15 to 17 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 2pm. Mostly cloudy, with a high near 25. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 16.
Wednesday
Partly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Mostly cloudy, with a high near 43.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
A chance of showers. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Friday Night
Rain and snow showers likely. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Saturday
Rain and snow showers likely. Mostly cloudy, with a high near 43. Chance of precipitation is 60%.
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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:
2:35 am EDT Mar 15, 2026
Forecast Valid:
3am EDT Mar 15, 2026-6pm EDT Mar 21, 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