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

Marion, Marion Municipal Airport (KMNN)

Lat: 40.62°NLon: 83.07°WElev: 994ft.

Overcast

75°F

24°C

Humidity 76%
Wind Speed N 5 mph
Barometer 29.97 in (1014.5 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 10 Sep 7:53 pm EDT
Extended Forecast for

Marion OH

  • Tonight

    Tonight: A chance of showers, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 61. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 61 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 81. Light and variable wind.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 64. Calm wind becoming southeast around 6 mph after midnight.

    Low: 64 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 82. Southwest wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 66. South wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 61. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 81. Light and variable wind.
Friday Night
Increasing clouds, with a low around 64. Calm wind becoming southeast around 6 mph after midnight.
Saturday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 82. Southwest wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 66. South wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
A chance of showers after 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Wednesday
Showers likely. Partly sunny, with a high near 81. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Marion OH
 40.61°N 83.13°W (Elev. 928 ft)
Last Update:
6:02 pm EDT Sep 10, 2026
Forecast Valid:
8pm EDT Sep 10, 2026-6pm EDT Sep 17, 2026
 
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