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Major Winter Storm Impacting Central PA into Monday

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Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

14°F

-10°C

Humidity 79%
Wind Speed W 6 mph
Barometer 29.73 in
Dewpoint 9°F (-13°C)
Visibility 5.00 mi
Wind Chill5°F (-15°C)
Last update 26 Jan 2:15 am EST
Extended Forecast for

6 Miles SSE James City PA

Cold Weather Advisory January 26, 07:00pm until January 27, 01:00pm
Click here for hazard details and duration
Cold Weather Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 11. Light west wind.

    Low: 11 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of snow showers, mainly after 1pm. Mostly cloudy, with a high near 16. Wind chill values as low as zero. West wind 6 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 16 °F

    Chance Snow
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around -3. Wind chill values as low as -20. West wind around 9 mph, with gusts as high as 23 mph.

    Low: -3 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of snow showers, mainly before 1pm. Partly sunny, with a high near 12. Wind chill values as low as -20. Southwest wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 12 °F

    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers. Mostly cloudy, with a low around 0. West wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 0 °F

    Slight Chance
    Snow Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 11.

    High: 11 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -2.

    Low: -2 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy and cold, with a high near 10.

    High: 10 °F

    Cold

  • Thursday Night

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

    Low: -9 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 11. Light west wind.
Monday
A chance of snow showers, mainly after 1pm. Mostly cloudy, with a high near 16. Wind chill values as low as zero. West wind 6 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around -3. Wind chill values as low as -20. West wind around 9 mph, with gusts as high as 23 mph.
Tuesday
A chance of snow showers, mainly before 1pm. Partly sunny, with a high near 12. Wind chill values as low as -20. Southwest wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Tuesday Night
A slight chance of snow showers. Mostly cloudy, with a low around 0. West wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 11.
Wednesday Night
Mostly cloudy, with a low around -2.
Thursday
Mostly cloudy and cold, with a high near 10.
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 -2.
Saturday
Partly sunny, with a high near 16.
Saturday Night
Mostly cloudy, with a low around -3.
Sunday
Mostly sunny, with a high near 21.
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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:
2:16 am EST Jan 26, 2026
Forecast Valid:
2am EST Jan 26, 2026-6pm EST Feb 1, 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