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

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 SSE James City PA

Winter Weather Advisory until March 17, 05:00pm
Wind Advisory March 16, 06:51pm until March 17, 08:00am
Click here for hazard details and duration
Winter Weather Advisory
Wind Advisory
  •  
    Winter Weather Advisory until March 17, 05:00pm
    Wind Advisory March 16, 06:51pm until March 17, 08:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 16 °F

    Rain/Snow
    then Chance
    Snow

  • Tuesday

    Tuesday: A chance of snow showers. Mostly cloudy, with a high near 25. West wind around 15 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.

    High: 25 °F

    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers before 2am. Mostly cloudy, with a low around 14. West wind 3 to 7 mph. Chance of precipitation is 20%.

    Low: 14 °F

    Slight Chance
    Snow Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 32. South wind 3 to 7 mph.

    High: 32 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of snow after 2am. Mostly cloudy, with a low around 26. South wind around 5 mph. Chance of precipitation is 20%.

    Low: 26 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A slight chance of rain and snow before 2pm, then a slight chance of rain. Mostly cloudy, with a high near 42. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 48. Chance of precipitation is 40%.

    High: 48 °F

    Chance Rain

Detailed Forecast

Tonight
Rain and snow, becoming all snow after 7pm. The snow could be heavy at times. Low around 16. West wind 11 to 16 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.
Tuesday
A chance of snow showers. Mostly cloudy, with a high near 25. West wind around 15 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
Tuesday Night
A slight chance of snow showers before 2am. Mostly cloudy, with a low around 14. West wind 3 to 7 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 32. South wind 3 to 7 mph.
Wednesday Night
A slight chance of snow after 2am. Mostly cloudy, with a low around 26. South wind around 5 mph. Chance of precipitation is 20%.
Thursday
A slight chance of rain and snow before 2pm, then a slight chance of rain. Mostly cloudy, with a high near 42. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
A chance of rain. Mostly cloudy, with a high near 48. Chance of precipitation is 40%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 32. Chance of precipitation is 50%.
Saturday
A chance of rain. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Sunday
A chance of rain. Mostly cloudy, with a high near 49. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
Partly sunny, with a high near 41.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSE James City PA
 41.54°N 78.79°W (Elev. 1699 ft)
Last Update:
4:46 pm EDT Mar 16, 2026
Forecast Valid:
6pm EDT Mar 16, 2026-6pm EDT Mar 23, 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