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Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Fair

-2°F

-19°C

Humidity 77%
Wind Speed W 3 mph
Barometer 30.57 in
Dewpoint -8°F (-22°C)
Visibility 10.00 mi
Last update 24 Jan 9:15 am EST
Extended Forecast for

5 Miles SSW Cross Fork PA

Cold Weather Advisory January 24, 09:31am until January 24, 10:00am
Winter Storm Warning January 24, 10:00pm until January 26, 01:00pm
Click here for hazard details and duration
...
Winter Storm Warning
  •  
    Cold Weather Advisory January 24, 09:31am until January 24, 10:00am

    NOW until 10:00am Sat

    Cold Weather Advisory

  • Today

    High: 14 °F

    Partly Sunny

  • Tonight

    Tonight: Snow likely, mainly after 5am. Cloudy, with a low around 8. Wind chill values as low as zero. Calm wind becoming southeast around 6 mph after midnight. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 8 °F

    Mostly Cloudy
    then Snow
    Likely

  • Sunday

    Sunday: Snow. The snow could be heavy at times. High near 16. Wind chill values as low as zero. Southeast wind around 7 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    High: 16 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Low around 12. East wind around 6 mph becoming light and variable after midnight. 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, mainly before 1pm. Mostly cloudy, with a high near 20. Northwest wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 20 °F

    Chance Snow

  • Monday Night

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

    Low: 2 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 14.

    High: 14 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 5.

    Low: 5 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 14. Wind chill values as low as -5. Light northwest wind.
Tonight
Snow likely, mainly after 5am. Cloudy, with a low around 8. Wind chill values as low as zero. Calm wind becoming southeast around 6 mph after midnight. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Sunday
Snow. The snow could be heavy at times. High near 16. Wind chill values as low as zero. Southeast wind around 7 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Sunday Night
Snow. The snow could be heavy at times. Low around 12. East wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Monday
A chance of snow, mainly before 1pm. Mostly cloudy, with a high near 20. Northwest wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 2.
Tuesday
Mostly cloudy, with a high near 14.
Tuesday Night
Mostly cloudy, with a low around 5.
Wednesday
Partly sunny, with a high near 17.
Wednesday Night
Mostly cloudy, with a low around 1.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 17. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 3.
Friday
Partly sunny, with a high near 18.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Cross Fork PA
 41.41°N 77.87°W (Elev. 1736 ft)
Last Update:
7:06 am EST Jan 24, 2026
Forecast Valid:
9am EST Jan 24, 2026-6pm EST Jan 30, 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