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Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

5°F

-15°C

Humidity 85%
Wind Speed W 6 mph
Barometer 30.07 in
Dewpoint 1°F (-17°C)
Visibility 7.00 mi
Wind Chill-6°F (-21°C)
Last update 28 Jan 7:55 am EST
Extended Forecast for

6 Miles ESE Sinnamahoning PA

Cold Weather Advisory January 29, 01:00am until January 29, 10:00am
Cold Weather Advisory January 28, 08:14am until January 28, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
...
  •  
    Cold Weather Advisory January 28, 08:14am until January 28, 10:00am

    NOW until 10:00am Wed

    Cold Weather Advisory

  • Today

    High: 12 °F

    Slight Chance
    Snow Showers

  • Tonight

    Tonight: Flurries. Mostly cloudy, with a low around 0. Wind chill values as low as -15. West wind around 9 mph.

    Low: 0 °F

    Flurries

  • Thursday

    Thursday: Flurries before 1pm, then a slight chance of snow showers after 1pm. Partly sunny, with a high near 14. Wind chill values as low as -15. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 14 °F

    Slight Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -5. Wind chill values as low as -20. West wind 7 to 9 mph.

    Low: -5 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 13. Northwest wind 7 to 9 mph.

    High: 13 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -8.

    Low: -8 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 15.

    High: 15 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 3.

    Low: 3 °F

    Partly Cloudy

Detailed Forecast

Today
Flurries before noon, then a slight chance of snow showers after noon. Mostly cloudy, with a high near 12. Wind chill values as low as -10. West wind 8 to 10 mph. Chance of precipitation is 20%.
Tonight
Flurries. Mostly cloudy, with a low around 0. Wind chill values as low as -15. West wind around 9 mph.
Thursday
Flurries before 1pm, then a slight chance of snow showers after 1pm. Partly sunny, with a high near 14. Wind chill values as low as -15. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around -5. Wind chill values as low as -20. West wind 7 to 9 mph.
Friday
Mostly sunny, with a high near 13. Northwest wind 7 to 9 mph.
Friday Night
Partly cloudy, with a low around -8.
Saturday
Partly sunny, with a high near 15.
Saturday Night
Partly cloudy, with a low around 3.
Sunday
Mostly sunny, with a high near 20.
Sunday Night
Partly cloudy, with a low around 6.
Monday
Mostly sunny, with a high near 27.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
Partly sunny, with a high near 26.
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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:
7:11 am EST Jan 28, 2026
Forecast Valid:
8am EST Jan 28, 2026-6pm EST Feb 3, 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