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

Marysville Union County Airport (KMRT)

Lat: 40.22°NLon: 83.35°WElev: 1021ft.

Fair

52°F

11°C

Humidity 54%
Wind Speed N 5 mph
Barometer 30.16 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 11 May 1:15 am EDT
Extended Forecast for

Marysville OH

  • Overnight

    Overnight: Mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 64. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming clear, with a low around 39. North wind 5 to 7 mph becoming light and variable after midnight.

    Low: 39 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Increasing clouds, with a high near 69. Southeast wind 5 to 8 mph becoming southwest in the afternoon.

    High: 69 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Showers, mainly after 2am. Low around 55. Southwest wind 9 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Chance
    Showers then
    Showers

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 2pm. High near 69. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Showers then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 41. Calm wind.
Monday
Mostly sunny, with a high near 64. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Monday Night
Mostly cloudy, then gradually becoming clear, with a low around 39. North wind 5 to 7 mph becoming light and variable after midnight.
Tuesday
Increasing clouds, with a high near 69. Southeast wind 5 to 8 mph becoming southwest in the afternoon.
Tuesday Night
Showers, mainly after 2am. Low around 55. Southwest wind 9 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers, with thunderstorms also possible after 2pm. High near 69. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 72.
Friday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marysville OH
 40.22°N 83.37°W (Elev. 997 ft)
Last Update:
4:00 pm EDT May 10, 2026
Forecast Valid:
1am EDT May 11, 2026-6pm EDT May 17, 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