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.

Fair

73°F

23°C

Humidity 100%
Wind Speed SW 5 mph
Barometer 29.93 in (1013.0 mb)
Dewpoint 73°F (23°C)
Visibility 7.00 mi
Last update 16 Aug 10:53 pm EDT
Extended Forecast for

Marengo OH

  • Tonight

    Tonight: Mostly cloudy, with a low around 68. West wind around 8 mph.

    Low: 68 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers and thunderstorms between 2pm and 3pm. Mostly cloudy, with a high near 80. Northwest wind 6 to 9 mph. Chance of precipitation is 20%.

    High: 80 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 59. North wind around 6 mph becoming calm in the evening.

    Low: 59 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. Southwest wind 3 to 5 mph.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 78. 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

    Partly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm 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 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 68. West wind around 8 mph.
Monday
A slight chance of showers and thunderstorms between 2pm and 3pm. Mostly cloudy, with a high near 80. Northwest wind 6 to 9 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 59. North wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 79. Calm wind becoming west 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 61. Southwest wind 3 to 5 mph.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm 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 60. Chance of precipitation is 60%.
Thursday
Partly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marengo OH
 40.41°N 82.8°W (Elev. 1135 ft)
Last Update:
10:01 pm EDT Aug 16, 2026
Forecast Valid:
11pm EDT Aug 16, 2026-6pm EDT Aug 23, 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