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

59°F

15°C

Humidity 69%
Wind Speed NW 3 mph
Barometer 29.94 in (1013.7 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 21 Jun 1:53 am EDT
Extended Forecast for

Sycamore OH

  • Overnight

    Overnight: Mostly clear, with a low around 56. West wind 3 to 5 mph.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 77. Calm wind becoming west around 5 mph.

    High: 77 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Showers, with thunderstorms also possible after 2am. Low around 61. East wind 6 to 14 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 61 °F

    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 70. East wind 13 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 70 °F

    Showers

  • Monday Night

    Monday Night: A chance of showers before 8pm. Partly cloudy, with a low around 57. North wind 5 to 11 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 78. Chance of precipitation is 40%.

    High: 78 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Partly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 56. West wind 3 to 5 mph.
Sunday
Increasing clouds, with a high near 77. Calm wind becoming west around 5 mph.
Sunday Night
Showers, with thunderstorms also possible after 2am. Low around 61. East wind 6 to 14 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Monday
Showers, with thunderstorms also possible after 2pm. High near 70. East wind 13 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
A chance of showers before 8pm. Partly cloudy, with a low around 57. North wind 5 to 11 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 78. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 78. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sycamore OH
 40.96°N 83.17°W (Elev. 801 ft)
Last Update:
1:32 am EDT Jun 21, 2026
Forecast Valid:
2am EDT Jun 21, 2026-6pm EDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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