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Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Partly Cloudy

5°F

-15°C

Humidity 66%
Wind Speed SW 14 G 20 mph
Barometer 29.98 in
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill-12°F (-24°C)
Last update 27 Jan 5:55 am EST
Extended Forecast for

4 Miles NW Sinnamahoning PA

Cold Weather Advisory January 27, 07:00pm until January 28, 10:00am
Cold Weather Advisory January 27, 06:11am until January 27, 01:00pm
Click here for hazard details and duration
Cold Weather Advisory
Cold Weather Advisory
  •  
    Cold Weather Advisory January 27, 06:11am until January 27, 01:00pm

    NOW until 1:00pm Tue

    Cold Weather Advisory

  • Today

    High: 12 °F

    Partly Sunny
    then Slight
    Chance Snow
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 1. Wind chill values as low as -10. West wind around 10 mph, with gusts as high as 24 mph.

    Low: 1 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 12. Wind chill values as low as -15. West wind 7 to 9 mph, with gusts as high as 20 mph.

    High: 12 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -1. Wind chill values as low as -15. West wind around 8 mph.

    Low: -1 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 13. West wind 8 to 10 mph, with gusts as high as 22 mph.

    High: 13 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -7.

    Low: -7 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 11.

    High: 11 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -6.

    Low: -6 °F

    Mostly Cloudy

Detailed Forecast

Today
Intermittent flurries before 1pm, then a slight chance of snow showers between 1pm and 2pm, then intermittent flurries after 2pm. Mostly cloudy, with a high near 12. Wind chill values as low as -10. Southwest wind 10 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 1. Wind chill values as low as -10. West wind around 10 mph, with gusts as high as 24 mph.
Wednesday
Partly sunny, with a high near 12. Wind chill values as low as -15. West wind 7 to 9 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around -1. Wind chill values as low as -15. West wind around 8 mph.
Thursday
Partly sunny, with a high near 13. West wind 8 to 10 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around -7.
Friday
Mostly sunny, with a high near 11.
Friday Night
Mostly cloudy, with a low around -6.
Saturday
Partly sunny, with a high near 16.
Saturday Night
Mostly cloudy, with a low around 0.
Sunday
Partly sunny, with a high near 20.
Sunday Night
Partly cloudy, with a low around 5.
Monday
Mostly sunny, with a high near 24.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Sinnamahoning PA
 41.44°N 78.1°W (Elev. 1818 ft)
6:07 am EST Jan 27, 2026
6am EST Jan 27, 2026-6pm EST Feb 2, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database