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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

3 Miles S Kersey PA

Winter Storm Watch January 24, 10:00pm until January 26, 01:00pm
Cold Weather Advisory January 23, 01:00pm until January 24, 10:00am
Click here for hazard details and duration
Winter Storm Watch
Cold Weather Advisory

  • Today

    Today: Partly sunny, with a temperature rising to near 13 by 11am, then falling to around 4 during the remainder of the day. Wind chill values as low as -15. West wind 15 to 17 mph, with gusts as high as 31 mph.

    High: 13 °F⇓

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around -4. Wind chill values as low as -20. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.

    Low: -4 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny and cold, with a high near 10. Wind chill values as low as -15. West wind around 6 mph becoming light and variable in the afternoon.

    High: 10 °F

    Cold

  • Saturday Night

    Saturday Night: Snow, mainly after 1am. Low around 6. Wind chill values as low as -10. Light east wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 6 °F

    Chance Snow
    then Snow

  • Sunday

    Sunday: Snow. The snow could be heavy at times. High near 15. East wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    High: 15 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Low around 12. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 12 °F

    Heavy Snow

  • Monday

    Monday: Snow likely before 1pm, then a chance of snow showers after 1pm. Mostly cloudy, with a high near 16. Chance of precipitation is 60%.

    High: 16 °F

    Snow Likely

  • Monday Night

    Monday Night: Mostly cloudy, with a low around -1.

    Low: -1 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 12.

    High: 12 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, with a temperature rising to near 13 by 11am, then falling to around 4 during the remainder of the day. Wind chill values as low as -15. West wind 15 to 17 mph, with gusts as high as 31 mph.
Tonight
Partly cloudy, with a low around -4. Wind chill values as low as -20. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.
Saturday
Partly sunny and cold, with a high near 10. Wind chill values as low as -15. West wind around 6 mph becoming light and variable in the afternoon.
Saturday Night
Snow, mainly after 1am. Low around 6. Wind chill values as low as -10. Light east wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Sunday
Snow. The snow could be heavy at times. High near 15. East wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Sunday Night
Snow. The snow could be heavy at times. Low around 12. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Monday
Snow likely before 1pm, then a chance of snow showers after 1pm. Mostly cloudy, with a high near 16. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around -1.
Tuesday
Mostly cloudy, with a high near 12.
Tuesday Night
Mostly cloudy, with a low around 3.
Wednesday
Mostly cloudy, with a high near 15.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around -1. Chance of precipitation is 30%.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 13. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Kersey PA
 41.29°N 78.63°W (Elev. 1896 ft)
Last Update:
7:06 am EST Jan 23, 2026
Forecast Valid:
7am EST Jan 23, 2026-6pm EST Jan 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation