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

82°F

28°C

Humidity 62%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 15 Jul 2:15 pm EDT
Extended Forecast for

2 Miles WNW Emporium PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 88. Calm wind.

    High: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Patchy fog before 8am. High near 84. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Patchy Fog
    then Showers

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 5am, then a chance of showers. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 85. West wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 63. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%.

    High: 81 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 88. Calm wind.
Tonight
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 66. Calm wind.
Wednesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Patchy fog before 8am. High near 84. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 5am, then a chance of showers. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 85. West wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 63. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Partly sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 56.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%.
Saturday Night
A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Emporium PA
 41.54°N 78.26°W (Elev. 1398 ft)
Last Update:
1:29 pm EDT Jul 15, 2025
Forecast Valid:
2pm EDT Jul 15, 2025-6pm EDT Jul 21, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation