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

37°F

3°C

Humidity 93%
Wind Speed Calm
Barometer 30.18 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 16 Oct 8:35 am EDT
Extended Forecast for

5 Miles WNW Emporium PA

  • Today

    Today: Sunny, with a high near 58. North wind 5 to 9 mph, with gusts as high as 20 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 29. Light northwest wind.

    Low: 29 °F

    Clear then
    Frost

  • Friday

    Friday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 61. Light northwest wind.

    High: 61 °F

    Frost then
    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 2am. Increasing clouds, with a low around 40. Calm wind. Chance of precipitation is 30%.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 8am. Mostly cloudy, with a high near 68. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 69. Chance of precipitation is 70%.

    High: 69 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 42. Chance of precipitation is 80%.

    Low: 42 °F

    Showers

  • Monday

    Monday: A chance of showers. Partly sunny, with a high near 58. Chance of precipitation is 50%.

    High: 58 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 58. North wind 5 to 9 mph, with gusts as high as 20 mph.
Tonight
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 29. Light northwest wind.
Friday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 61. Light northwest wind.
Friday Night
A chance of showers after 2am. Increasing clouds, with a low around 40. Calm wind. Chance of precipitation is 30%.
Saturday
A chance of showers before 8am. Mostly cloudy, with a high near 68. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 69. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm. Low around 42. Chance of precipitation is 80%.
Monday
A chance of showers. Partly sunny, with a high near 58. Chance of precipitation is 50%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly sunny, with a high near 63. Chance of precipitation is 30%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.
Wednesday
Showers likely. Partly sunny, with a high near 58. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Emporium PA
 41.54°N 78.32°W (Elev. 1424 ft)
Last Update:
8:05 am EDT Oct 16, 2025
Forecast Valid:
8am EDT Oct 16, 2025-6pm EDT Oct 22, 2025
 
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