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.

A Few Clouds

81°F

27°C

Humidity 28%
Wind Speed Calm
Barometer 30.09 in (1018.8 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 2 Sep 12:53 pm EDT
Extended Forecast for

Marengo OH

  • This Afternoon

    This Afternoon: Sunny, with a high near 79. Southeast wind 3 to 5 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 54. Light and variable wind becoming east around 5 mph after midnight.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80. Southwest wind 6 to 11 mph.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm, mainly after 5am. Increasing clouds, with a low around 58. South wind 8 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.

    Low: 58 °F

    Partly Cloudy
    then Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 66. Southwest wind around 10 mph becoming northwest in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 66 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 73. Breezy.

    High: 73 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.

    Low: 48 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 79. Southeast wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 54. Light and variable wind becoming east around 5 mph after midnight.
Wednesday
Sunny, with a high near 80. Southwest wind 6 to 11 mph.
Wednesday Night
Showers likely and possibly a thunderstorm, mainly after 5am. Increasing clouds, with a low around 58. South wind 8 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.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 66. Southwest wind around 10 mph becoming northwest in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Mostly clear, with a low around 48.
Friday
Mostly sunny, with a high near 73. Breezy.
Friday Night
A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Mostly clear, with a low around 45.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 46.
Monday
Sunny, with a high near 71.
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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:
12:52 pm EDT Sep 2, 2025
Forecast Valid:
1pm EDT Sep 2, 2025-6pm EDT Sep 8, 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