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.

Overcast

34°F

1°C

Humidity 93%
Wind Speed SE 12 mph
Barometer 29.86 in
Dewpoint 32°F (0°C)
Visibility 4.00 mi
Wind Chill25°F (-4°C)
Last update 28 Dec 12:55 pm EST
Extended Forecast for

6 Miles SSE James City PA

Wind Advisory December 29, 04:00am until December 30, 12:00pm
Click here for hazard details and duration
Wind Advisory

  • This Afternoon

    This Afternoon: Rain, mainly before 4pm. Steady temperature around 39. Southeast wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 39 °F

    Rain

  • Tonight

    Tonight: Rain. Temperature rising to around 52 by 4am. Southwest wind 8 to 11 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F⇑

    Rain

  • Monday

    Monday: A chance of rain before noon, then snow showers likely. Mostly cloudy, with a temperature falling to around 23 by 4pm. Breezy, with a west wind 16 to 22 mph, with gusts as high as 49 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 48 °F⇓

    Breezy.
    Chance Rain
    then Snow
    Showers
    Likely

  • Monday Night

    Monday Night: Snow showers. Low around 17. Wind chill values as low as zero. Breezy, with a west wind 21 to 24 mph, with gusts as high as 48 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 17 °F

    Snow Showers
    and Breezy

  • Tuesday

    Tuesday: Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 23. Breezy, with a west wind 15 to 20 mph, with gusts as high as 44 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 23 °F

    Snow Showers
    Likely and
    Breezy

  • Tuesday Night

    Tuesday Night: Snow showers likely. Mostly cloudy, with a low around 16. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 16 °F

    Snow Showers
    Likely

  • Wednesday

    Wednesday: Snow showers. High near 27. Chance of precipitation is 90%.

    High: 27 °F

    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 10. Chance of precipitation is 70%.

    Low: 10 °F

    Snow Showers
    Likely

  • New Year's Day

    New Year's Day: A chance of snow showers. Mostly cloudy, with a high near 19. Chance of precipitation is 50%.

    High: 19 °F

    Chance Snow
    Showers

Detailed Forecast

This Afternoon
Rain, mainly before 4pm. Steady temperature around 39. Southeast wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain. Temperature rising to around 52 by 4am. Southwest wind 8 to 11 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A chance of rain before noon, then snow showers likely. Mostly cloudy, with a temperature falling to around 23 by 4pm. Breezy, with a west wind 16 to 22 mph, with gusts as high as 49 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Monday Night
Snow showers. Low around 17. Wind chill values as low as zero. Breezy, with a west wind 21 to 24 mph, with gusts as high as 48 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 23. Breezy, with a west wind 15 to 20 mph, with gusts as high as 44 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Tuesday Night
Snow showers likely. Mostly cloudy, with a low around 16. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday
Snow showers. High near 27. Chance of precipitation is 90%.
Wednesday Night
Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 10. Chance of precipitation is 70%.
New Year's Day
A chance of snow showers. Mostly cloudy, with a high near 19. Chance of precipitation is 50%.
Thursday Night
A chance of snow showers before 1am. Mostly cloudy, with a low around 9. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 21.
Friday Night
Mostly cloudy, with a low around 13.
Saturday
A chance of freezing rain. Partly sunny, with a high near 29. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSE James City PA
 41.54°N 78.79°W (Elev. 1699 ft)
Last Update:
12:56 pm EST Dec 28, 2025
Forecast Valid:
1pm EST Dec 28, 2025-6pm EST Jan 3, 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