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Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Fair

3°F

-16°C

Humidity 78%
Wind Speed W 5 mph
Barometer 30.13 in
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-7°F (-22°C)
Last update 30 Jan 1:35 am EST
Extended Forecast for

3 Miles E Sinnamahoning PA

Cold Weather Advisory January 30, 07:00pm until January 31, 10:00am
Cold Weather Advisory January 30, 01:44am until January 30, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
Cold Weather Advisory
  •  
    Cold Weather Advisory January 30, 01:44am until January 30, 10:00am

    NOW until 10:00am Fri

    Cold Weather Advisory

  • Overnight

    Low: -3 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 12. Wind chill values as low as -15. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 12 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -3. Wind chill values as low as -15. Northwest wind 5 to 7 mph.

    Low: -3 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 17. Wind chill values as low as -15. Northwest wind 6 to 8 mph.

    High: 17 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 1. North wind 7 to 9 mph, with gusts as high as 21 mph.

    Low: 1 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 3.

    Low: 3 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

Detailed Forecast

Overnight
Partly cloudy, with a low around -3. Wind chill values as low as -10. Northwest wind around 7 mph.
Friday
Mostly sunny, with a high near 12. Wind chill values as low as -15. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around -3. Wind chill values as low as -15. Northwest wind 5 to 7 mph.
Saturday
Mostly sunny, with a high near 17. Wind chill values as low as -15. Northwest wind 6 to 8 mph.
Saturday Night
Partly cloudy, with a low around 1. North wind 7 to 9 mph, with gusts as high as 21 mph.
Sunday
Mostly sunny, with a high near 21.
Sunday Night
Mostly clear, with a low around 3.
Monday
Mostly sunny, with a high near 25.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
Mostly cloudy, with a high near 27.
Tuesday Night
Mostly cloudy, with a low around 11.
Wednesday
A chance of snow. Partly sunny, with a high near 27. Chance of precipitation is 30%.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 11. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 27.
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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:
1:31 am EST Jan 30, 2026
Forecast Valid:
1am EST Jan 30, 2026-6pm EST Feb 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation