National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

25°F

-4°C

Humidity 86%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 21°F (-6°C)
Visibility 1.50 mi
Last update 18 Jan 3:15 am EST
Extended Forecast for

Emporium PA

  • Overnight

    Overnight: A slight chance of snow. Mostly cloudy, with a low around 19. Calm wind. Chance of precipitation is 20%.

    Low: 19 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: Partly sunny, with a high near 25. West wind 3 to 6 mph.

    High: 25 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 16. Light west wind.

    Low: 16 °F

    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: A chance of snow after 8am. Mostly cloudy, with a high near 26. West wind 6 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 26 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 3. West wind 10 to 13 mph, with gusts as high as 29 mph.

    Low: 3 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 15.

    High: 15 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 5.

    Low: 5 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of snow after 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 40%.

    High: 34 °F

    Partly Sunny
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: A chance of snow. Mostly cloudy, with a low around 19. Chance of precipitation is 50%.

    Low: 19 °F

    Chance Snow

Detailed Forecast

Overnight
A slight chance of snow. Mostly cloudy, with a low around 19. Calm wind. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 25. West wind 3 to 6 mph.
Sunday Night
Mostly cloudy, with a low around 16. Light west wind.
M.L.King Day
A chance of snow after 8am. Mostly cloudy, with a high near 26. West wind 6 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Monday Night
Mostly cloudy, with a low around 3. West wind 10 to 13 mph, with gusts as high as 29 mph.
Tuesday
Partly sunny, with a high near 15.
Tuesday Night
Partly cloudy, with a low around 5.
Wednesday
A chance of snow after 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 40%.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 19. Chance of precipitation is 50%.
Thursday
A chance of snow. Partly sunny, with a high near 26. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 9.
Friday
Partly sunny, with a high near 30.
Friday Night
A chance of snow. Mostly cloudy, with a low around 18. Chance of precipitation is 40%.
Saturday
A chance of snow. Mostly cloudy, with a high near 29. Chance of precipitation is 40%.
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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:
1:36 am EST Jan 18, 2026
Forecast Valid:
3am EST Jan 18, 2026-6pm EST Jan 24, 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