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

66°F

19°C

Humidity 96%
Wind Speed Calm
Barometer 30.00 in (1015.4 mb)
Dewpoint 65°F (18°C)
Visibility 9.00 mi
Last update 27 May 1:53 am EDT
Extended Forecast for

4 Miles WSW Green Camp OH

  • Overnight

    Overnight: A chance of showers and thunderstorms, mainly after 3am. Patchy fog after 3am. Otherwise, cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 78. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers
    Likely and
    Patchy Fog
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Calm wind becoming northeast around 5 mph after midnight.

    Low: 57 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 74. North wind 7 to 14 mph.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. Northeast wind 5 to 9 mph becoming light after midnight.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers and thunderstorms, mainly after 3am. Patchy fog after 3am. Otherwise, cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and thunderstorms likely, mainly before 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 78. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Calm wind becoming northeast around 5 mph after midnight.
Thursday
Sunny, with a high near 74. North wind 7 to 14 mph.
Thursday Night
Mostly clear, with a low around 49. Northeast wind 5 to 9 mph becoming light after midnight.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Green Camp OH
 40.53°N 83.28°W (Elev. 899 ft)
Last Update:
1:46 am EDT May 27, 2026
Forecast Valid:
2am EDT May 27, 2026-6pm EDT Jun 2, 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