National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
News Headlines

Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

7°F

-14°C

Humidity 72%
Wind Speed W 7 mph
Barometer 30.09 in
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 20 Jan 12:15 am EST
Extended Forecast for

11 Miles WSW Galeton PA

Cold Weather Advisory January 20, 12:23am until January 20, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 20, 12:23am until January 20, 12:00pm

    NOW until 12:00pm Tue

    Cold Weather Advisory

  • Overnight

    Low: 0 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 11. Wind chill values as low as -20. West wind 11 to 14 mph, with gusts as high as 29 mph.

    High: 11 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 5. Wind chill values as low as -10. West wind 7 to 9 mph, with gusts as high as 20 mph.

    Low: 5 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Snow showers likely after 1pm. Partly sunny, with a high near 28. Wind chill values as low as -10. South wind 8 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 28 °F

    Partly Sunny
    then Snow
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 22. Southwest wind 10 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 22 °F

    Snow Showers
    Likely

  • Thursday

    Thursday: A slight chance of snow showers before 1pm. Partly sunny, with a high near 28. Chance of precipitation is 20%.

    High: 28 °F

    Slight Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 7.

    Low: 7 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 14.

    High: 14 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 0. Wind chill values as low as -15. West wind around 14 mph, with gusts as high as 28 mph.
Tuesday
Partly sunny, with a high near 11. Wind chill values as low as -20. West wind 11 to 14 mph, with gusts as high as 29 mph.
Tuesday Night
Partly cloudy, with a low around 5. Wind chill values as low as -10. West wind 7 to 9 mph, with gusts as high as 20 mph.
Wednesday
Snow showers likely after 1pm. Partly sunny, with a high near 28. Wind chill values as low as -10. South wind 8 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 22. Southwest wind 10 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Thursday
A slight chance of snow showers before 1pm. Partly sunny, with a high near 28. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 7.
Friday
Mostly cloudy, with a high near 14.
Friday Night
Mostly cloudy, with a low around -4.
Saturday
Mostly cloudy and cold, with a high near 6.
Saturday Night
Mostly cloudy, with a low around -5.
Sunday
A chance of snow showers. Partly sunny and cold, with a high near 9. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around -2.
Monday
Partly sunny, with a high near 13.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Galeton PA
 41.67°N 77.83°W (Elev. 1998 ft)
Last Update:
11:31 pm EST Jan 19, 2026
Forecast Valid:
12am EST Jan 20, 2026-6pm EST Jan 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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