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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

6 Miles ESE Sinnamahoning PA

Winter Storm Watch January 24, 10:00pm until January 26, 01:00pm
Cold Weather Advisory January 23, 01:00pm until January 24, 10:00am
Click here for hazard details and duration
Winter Storm Watch
Cold Weather Advisory

  • Today

    Today: Mostly sunny, with a temperature falling to around 7 by 5pm. Wind chill values as low as -10. West wind 14 to 16 mph, with gusts as high as 30 mph.

    High: 17 °F⇓

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around -1. Wind chill values as low as -20. Northwest wind 9 to 15 mph, with gusts as high as 26 mph.

    Low: -1 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 12. Wind chill values as low as -15. Northwest wind 3 to 7 mph.

    High: 12 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow, mainly after 1am. Low around 7. Wind chill values as low as -5. East wind 6 to 9 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 7 °F

    Slight Chance
    Snow then
    Snow

  • Sunday

    Sunday: Snow. The snow could be heavy at times. High near 16. East wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    High: 16 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Low around 12. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 12 °F

    Heavy Snow

  • Monday

    Monday: A chance of snow before 1pm. Mostly cloudy, with a high near 19. Chance of precipitation is 50%.

    High: 19 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 0.

    Low: 0 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 15.

    High: 15 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a temperature falling to around 7 by 5pm. Wind chill values as low as -10. West wind 14 to 16 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around -1. Wind chill values as low as -20. Northwest wind 9 to 15 mph, with gusts as high as 26 mph.
Saturday
Partly sunny, with a high near 12. Wind chill values as low as -15. Northwest wind 3 to 7 mph.
Saturday Night
Snow, mainly after 1am. Low around 7. Wind chill values as low as -5. East wind 6 to 9 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Sunday
Snow. The snow could be heavy at times. High near 16. East wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Sunday Night
Snow. The snow could be heavy at times. Low around 12. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Monday
A chance of snow before 1pm. Mostly cloudy, with a high near 19. Chance of precipitation is 50%.
Monday Night
Mostly cloudy, with a low around 0.
Tuesday
Partly sunny, with a high near 15.
Tuesday Night
Mostly cloudy, with a low around 3.
Wednesday
Partly sunny, with a high near 18.
Wednesday Night
Mostly cloudy, with a low around 0.
Thursday
Mostly cloudy, with a high near 15.
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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:
2:51 am EST Jan 23, 2026
Forecast Valid:
4am EST Jan 23, 2026-6pm EST Jan 29, 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