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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

7°F

-14°C

Humidity 78%
Wind Speed W 7 mph
Barometer 29.97 in
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 28 Jan 10:15 pm EST
Extended Forecast for

3 Miles NW Sinnamahoning PA

Cold Weather Advisory January 29, 01:00am until January 29, 10:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: A chance of flurries, mainly after 1am. Mostly cloudy, with a low around -1. Wind chill values as low as -20. West wind around 11 mph, with gusts as high as 22 mph.

    Low: -1 °F

    Chance
    Flurries

  • Thursday

    Thursday: A chance of flurries before noon, then a slight chance of snow between noon and 3pm, then a chance of flurries after 3pm. Partly sunny, with a high near 13. Wind chill values as low as -15. West wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 13 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -7. Wind chill values as low as -20. West wind 7 to 9 mph.

    Low: -7 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near 10. Wind chill values as low as -20. Northwest wind around 8 mph.

    High: 10 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around -8. Northwest wind around 7 mph.

    Low: -8 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 12.

    High: 12 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 2.

    Low: 2 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 15.

    High: 15 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 5.

    Low: 5 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of flurries, mainly after 1am. Mostly cloudy, with a low around -1. Wind chill values as low as -20. West wind around 11 mph, with gusts as high as 22 mph.
Thursday
A chance of flurries before noon, then a slight chance of snow between noon and 3pm, then a chance of flurries after 3pm. Partly sunny, with a high near 13. Wind chill values as low as -15. West wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around -7. Wind chill values as low as -20. West wind 7 to 9 mph.
Friday
Mostly sunny and cold, with a high near 10. Wind chill values as low as -20. Northwest wind around 8 mph.
Friday Night
Partly cloudy, with a low around -8. Northwest wind around 7 mph.
Saturday
Partly sunny, with a high near 12.
Saturday Night
Mostly cloudy, with a low around 2.
Sunday
Mostly sunny, with a high near 15.
Sunday Night
Partly cloudy, with a low around 5.
Monday
Mostly sunny, with a high near 24.
Monday Night
Mostly cloudy, with a low around 12.
Tuesday
Partly sunny, with a high near 25.
Tuesday Night
Mostly cloudy, with a low around 8.
Wednesday
Partly sunny, with a high near 27.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Sinnamahoning PA
 41.41°N 78.11°W (Elev. 2169 ft)
Last Update:
10:02 pm EST Jan 28, 2026
Forecast Valid:
10pm EST Jan 28, 2026-6pm EST Feb 4, 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