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Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

10°F

-12°C

Humidity 79%
Wind Speed W 10 mph
Barometer 29.95 in
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill-4°F (-20°C)
Last update 27 Jan 8:15 pm EST
Extended Forecast for

3 Miles NW Sinnamahoning PA

Cold Weather Advisory until January 28, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until January 28, 10:00am

    NOW until 10:00am Wed

    Cold Weather Advisory

  • Tonight

    Low: 0 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 11. Wind chill values as low as -15. West wind around 9 mph, with gusts as high as 20 mph.

    High: 11 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -1. Wind chill values as low as -15. West wind around 9 mph.

    Low: -1 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 12. Wind chill values as low as -15. West wind around 10 mph, with gusts as high as 22 mph.

    High: 12 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -6. West wind 7 to 9 mph.

    Low: -6 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 11.

    High: 11 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -10.

    Low: -10 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 14.

    High: 14 °F

    Partly Sunny

Detailed Forecast

Tonight
A slight chance of snow showers before 10pm, then a chance of flurries after 10pm. Mostly cloudy, with a low around 0. Wind chill values as low as -15. West wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 11. Wind chill values as low as -15. West wind around 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 9 mph.
Thursday
Partly sunny, with a high near 12. Wind chill values as low as -15. West wind around 10 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around -6. West wind 7 to 9 mph.
Friday
Mostly sunny, with a high near 11.
Friday Night
Partly cloudy, with a low around -10.
Saturday
Partly sunny, with a high near 14.
Saturday Night
Mostly cloudy, with a low around 1.
Sunday
Mostly sunny, with a high near 19.
Sunday Night
Partly cloudy, with a low around 5.
Monday
Partly sunny, with a high near 24.
Monday Night
Mostly cloudy, with a low around 10.
Tuesday
Partly sunny, with a high near 24.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Sinnamahoning PA
 41.41°N 78.11°W (Elev. 2169 ft)
7:06 pm EST Jan 27, 2026
8pm EST Jan 27, 2026-6pm EST Feb 3, 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