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Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Partly Cloudy

19°F

-7°C

Humidity 45%
Wind Speed W 17 G 22 mph
Barometer 30.14 in
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 23 Jan 11:55 am EST
Extended Forecast for

8 Miles NNW Cross Fork PA

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

  • This Afternoon

    This Afternoon: Partly sunny, with a temperature falling to around 5 by 5pm. Wind chill values as low as -10. West wind around 14 mph, with gusts as high as 31 mph.

    High: 17 °F⇓

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around -4. Wind chill values as low as -15. Northwest wind 6 to 11 mph, with gusts as high as 25 mph.

    Low: -4 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 11. Wind chill values as low as -15. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 11 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow likely after 1am. Mostly cloudy, with a low around 6. Wind chill values as low as -5. Calm wind becoming southeast around 6 mph after midnight. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 6 °F

    Mostly Cloudy
    then Snow
    Likely

  • Sunday

    Sunday: Snow. The snow could be heavy at times. High near 15. Southeast wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    High: 15 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow. Low around 11. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 11 °F

    Snow

  • Monday

    Monday: A chance of snow. Mostly cloudy, with a high near 18. Chance of precipitation is 50%.

    High: 18 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 0.

    Low: 0 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 12.

    High: 12 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a temperature falling to around 5 by 5pm. Wind chill values as low as -10. West wind around 14 mph, with gusts as high as 31 mph.
Tonight
Partly cloudy, with a low around -4. Wind chill values as low as -15. Northwest wind 6 to 11 mph, with gusts as high as 25 mph.
Saturday
Partly sunny, with a high near 11. Wind chill values as low as -15. Northwest wind around 5 mph becoming calm in the afternoon.
Saturday Night
Snow likely after 1am. Mostly cloudy, with a low around 6. Wind chill values as low as -5. Calm wind becoming southeast around 6 mph after midnight. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Sunday
Snow. The snow could be heavy at times. High near 15. Southeast wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Sunday Night
Snow. Low around 11. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Monday
A chance of snow. Mostly cloudy, with a high near 18. Chance of precipitation is 50%.
Monday Night
Mostly cloudy, with a low around 0.
Tuesday
Partly sunny, with a high near 12.
Tuesday Night
Mostly cloudy, with a low around 2.
Wednesday
Partly sunny, with a high near 15.
Wednesday Night
Mostly cloudy, with a low around 0.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 14. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNW Cross Fork PA
 41.59°N 77.9°W (Elev. 1775 ft)
Last Update:
11:54 am EST Jan 23, 2026
Forecast Valid:
12pm EST Jan 23, 2026-6pm EST Jan 29, 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