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Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Fair

14°F

-10°C

Humidity 48%
Wind Speed SW 12 mph
Barometer 30.26 in
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill0°F (-18°C)
Last update 20 Jan 4:15 pm EST
Extended Forecast for

Emporium PA

Winter Weather Advisory January 21, 12:00pm until January 22, 10:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 7. West wind around 6 mph becoming calm in the evening.

    Low: 7 °F

    Mostly Clear

  • Wednesday

    Wednesday: Snow, mainly after 1pm. High near 35. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 35 °F

    Slight Chance
    Snow then
    Snow

  • Wednesday Night

    Wednesday Night: Snow before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then a chance of snow after 1am. Low around 26. Southwest wind 6 to 8 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 26 °F

    Rain/Snow

  • Thursday

    Thursday: A slight chance of snow before 1pm. Partly sunny, with a high near 34. West wind 8 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    High: 34 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 12. West wind around 7 mph, with gusts as high as 20 mph.

    Low: 12 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 18.

    High: 18 °F

    Partly Sunny

  • Friday Night

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

    Low: -1 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 13.

    High: 13 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of snow after 1am. Mostly cloudy, with a low around 4. Chance of precipitation is 40%.

    Low: 4 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 7. West wind around 6 mph becoming calm in the evening.
Wednesday
Snow, mainly after 1pm. High near 35. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then a chance of snow after 1am. Low around 26. Southwest wind 6 to 8 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Thursday
A slight chance of snow before 1pm. Partly sunny, with a high near 34. West wind 8 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 12. West wind around 7 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 18.
Friday Night
Mostly cloudy, with a low around -1.
Saturday
Partly sunny, with a high near 13.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 4. Chance of precipitation is 40%.
Sunday
A chance of snow. Mostly cloudy, with a high near 18. Chance of precipitation is 50%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 4. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 20.
Monday Night
Mostly cloudy, with a low around 6.
Tuesday
Partly sunny, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Emporium PA
 41.51°N 78.24°W (Elev. 1099 ft)
Last Update:
3:02 pm EST Jan 20, 2026
Forecast Valid:
4pm EST Jan 20, 2026-6pm EST Jan 27, 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