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

3 Miles NW Sinnamahoning PA

Wind Advisory March 13, 10:14pm until March 14, 11:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 13, 10:14pm until March 14, 11:00am

    NOW until 11:00am Sat

    Wind Advisory

  • Tonight

    Low: 28 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 39. West wind 11 to 15 mph, with gusts as high as 39 mph.

    High: 39 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: A chance of snow showers after 2am. Increasing clouds, with a low around 28. Northwest wind around 6 mph becoming east after midnight. Chance of precipitation is 30%.

    Low: 28 °F

    Partly Cloudy
    then Chance
    Snow Showers

  • Sunday

    Sunday: A chance of snow showers before 8am. Mostly cloudy, with a high near 48. Southeast wind 11 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.

    High: 48 °F

    Chance Snow
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 44. Southeast wind around 17 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Monday

    Monday: Showers, mainly after 8am. High near 60. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 60 °F

    Showers

  • Monday Night

    Monday Night: Snow showers likely before 2am. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.

    Low: 19 °F

    Snow Showers
    Likely

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 25.

    High: 25 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of snow showers before 11pm. Mostly cloudy, with a low around 28. West wind 16 to 18 mph, with gusts as high as 44 mph. Chance of precipitation is 20%.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 39. West wind 11 to 15 mph, with gusts as high as 39 mph.
Saturday Night
A chance of snow showers after 2am. Increasing clouds, with a low around 28. Northwest wind around 6 mph becoming east after midnight. Chance of precipitation is 30%.
Sunday
A chance of snow showers before 8am. Mostly cloudy, with a high near 48. Southeast wind 11 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
Sunday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 44. Southeast wind around 17 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers, mainly after 8am. High near 60. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Snow showers likely before 2am. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.
Tuesday
Mostly cloudy, with a high near 25.
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
Partly sunny, with a high near 43.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
Mostly cloudy, with a high near 43.
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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:
10:01 pm EDT Mar 13, 2026
Forecast Valid:
10pm EDT Mar 13, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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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