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Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Partly Cloudy

5°F

-15°C

Humidity 78%
Wind Speed W 6 mph
Barometer 30.08 in
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill-6°F (-21°C)
Last update 28 Jan 9:35 am EST
Extended Forecast for

4 Miles NW Sinnamahoning PA

Cold Weather Advisory January 29, 01:00am until January 29, 10:00am
Cold Weather Advisory January 28, 09:47am until January 28, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
...
  •  
    Cold Weather Advisory January 28, 09:47am until January 28, 10:00am

    NOW until 10:00am Wed

    Cold Weather Advisory

  • Today

    High: 11 °F

    Chance Snow
    Showers

  • Tonight

    Tonight: Flurries with a slight chance of snow showers before 7pm, then flurries after 7pm. Mostly cloudy, with a low around 0. Wind chill values as low as -15. West wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 0 °F

    Slight Chance
    Snow Showers

  • Thursday

    Thursday: Flurries before 1pm, then a slight chance of snow showers after 1pm. Mostly cloudy, with a high near 14. Wind chill values as low as -15. West wind around 9 mph, with gusts as high as 21 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 -15. West wind around 7 mph.

    Low: -5 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 12. Northwest wind 6 to 8 mph.

    High: 12 °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 14.

    High: 14 °F

    Partly Sunny

  • Saturday Night

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

    Low: 3 °F

    Mostly Cloudy

Detailed Forecast

Today
Flurries before 10am, then a chance of snow showers, mainly between 10am and 5pm. Mostly cloudy, with a high near 11. Wind chill values as low as -10. West wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tonight
Flurries with a slight chance of snow showers before 7pm, then flurries after 7pm. Mostly cloudy, with a low around 0. Wind chill values as low as -15. West wind 6 to 8 mph, with gusts as high as 20 mph.
Thursday
Flurries before 1pm, then a slight chance of snow showers after 1pm. Mostly cloudy, with a high near 14. Wind chill values as low as -15. West wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around -5. Wind chill values as low as -15. West wind around 7 mph.
Friday
Mostly sunny, with a high near 12. Northwest wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around -8.
Saturday
Partly sunny, with a high near 14.
Saturday Night
Mostly cloudy, with a low around 3.
Sunday
Mostly sunny, with a high near 20.
Sunday Night
Partly cloudy, with a low around 6.
Monday
Partly sunny, with a high near 26.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
Partly sunny, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Sinnamahoning PA
 41.44°N 78.1°W (Elev. 1818 ft)
Last Update:
7:11 am EST Jan 28, 2026
Forecast Valid:
9am EST Jan 28, 2026-6pm EST Feb 3, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation