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Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

5°F

-15°C

Humidity 78%
Wind Speed SW 10 G 23 mph
Barometer 29.90 in
Dewpoint 0°F (-18°C)
Visibility 1.75 mi
Wind Chill-10°F (-23°C)
Last update 27 Jan 9:55 am EST
Extended Forecast for

6 Miles SSE James City PA

Cold Weather Advisory January 27, 07:00pm until January 28, 10:00am
Cold Weather Advisory January 27, 10:14am until January 27, 01:00pm
Click here for hazard details and duration
Cold Weather Advisory
Cold Weather Advisory
  •  
    Cold Weather Advisory January 27, 10:14am until January 27, 01:00pm

    NOW until 1:00pm Tue

    Cold Weather Advisory

  • Today

    High: 11 °F

    Chance Snow
    Showers

  • Tonight

    Tonight: A slight chance of snow showers before 10pm, then a slight chance of flurries after 10pm. Mostly cloudy, with a low around -1. Wind chill values as low as -10. West wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: -1 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Partly sunny and cold, with a high near 10. Wind chill values as low as -15. Southwest wind 6 to 8 mph.

    High: 10 °F

    Cold

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -2. Wind chill values as low as -15. West wind around 6 mph.

    Low: -2 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of snow showers before 1pm. Partly sunny, with a high near 11. West wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 11 °F

    Slight Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -9.

    Low: -9 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near 9.

    High: 9 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -8.

    Low: -8 °F

    Mostly Cloudy

Detailed Forecast

Today
A chance of snow showers, mainly between 1pm and 2pm. Mostly cloudy, with a high near 11. Wind chill values as low as -15. Southwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
Tonight
A slight chance of snow showers before 10pm, then a slight chance of flurries after 10pm. Mostly cloudy, with a low around -1. Wind chill values as low as -10. West wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny and cold, with a high near 10. Wind chill values as low as -15. Southwest wind 6 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around -2. Wind chill values as low as -15. West wind around 6 mph.
Thursday
A slight chance of snow showers before 1pm. Partly sunny, with a high near 11. West wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around -9.
Friday
Partly sunny and cold, with a high near 9.
Friday Night
Mostly cloudy, with a low around -8.
Saturday
Partly sunny, with a high near 14.
Saturday Night
Mostly cloudy, with a low around -3.
Sunday
Mostly sunny, with a high near 18.
Sunday Night
Mostly cloudy, with a low around 1.
Monday
Partly sunny, with a high near 22.
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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:
7:05 am EST Jan 27, 2026
Forecast Valid:
10am EST Jan 27, 2026-6pm EST Feb 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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