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

Hazardous Weather Conditions

Current conditions at

Marion, Marion Municipal Airport (KMNN)

Lat: 40.62°NLon: 83.07°WElev: 994ft.

Overcast

64°F

18°C

Humidity 96%
Wind Speed NW 6 mph
Barometer 30.06 in (1017.5 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 25 May 1:53 am EDT
Extended Forecast for

Marion OH

Dense Fog Advisory until May 25, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until May 25, 09:00am

    NOW until 9:00am Mon

    Dense Fog Advisory

  • Overnight

    Low: 59 °F

    Patchy Fog

  • Memorial Day

    Memorial Day: Patchy dense fog before 9am. Otherwise, partly sunny, with a high near 76. Northeast wind around 8 mph.

    High: 76 °F

    Patchy Dense
    Fog then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. Northeast wind around 5 mph becoming calm after midnight.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Light southeast wind.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 81. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 59. North wind around 5 mph.
Memorial Day
Patchy dense fog before 9am. Otherwise, partly sunny, with a high near 76. Northeast wind around 8 mph.
Monday Night
Partly cloudy, with a low around 56. Northeast wind around 5 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 82. Light southeast wind.
Tuesday Night
Mostly cloudy, with a low around 63. Calm wind.
Wednesday
A slight chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 81. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 59.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 54.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Partly sunny, with a high near 74.
Saturday Night
Mostly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marion OH
 40.58°N 83.13°W (Elev. 958 ft)
Last Update:
1:46 am EDT May 25, 2026
Forecast Valid:
2am EDT May 25, 2026-6pm EDT May 31, 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