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

51°F

11°C

Humidity 100%
Wind Speed Calm
Barometer 30.12 in (1020.1 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 23 Jul 2:53 am EDT
Extended Forecast for

Marengo OH

  • Overnight

    Overnight: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Patchy fog before 7am. Otherwise, sunny, with a high near 76. Calm wind becoming north around 6 mph in the afternoon.

    High: 76 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. Northeast wind 5 to 7 mph.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 78. East wind around 7 mph.

    High: 78 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm after midnight.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Saturday Night

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

    Low: 63 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 52. Calm wind.
Thursday
Patchy fog before 7am. Otherwise, sunny, with a high near 76. Calm wind becoming north around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 55. Northeast wind 5 to 7 mph.
Friday
Partly sunny, with a high near 78. East wind around 7 mph.
Friday Night
Partly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm after midnight.
Saturday
Sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 67.
Monday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 30%.
Tuesday Night
A chance of thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 82.
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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:
2:32 am EDT Jul 23, 2026
Forecast Valid:
3am EDT Jul 23, 2026-6pm EDT Jul 29, 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