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

79°F

26°C

Humidity 65%
Wind Speed S 8 G 17 mph
Barometer 29.99 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 12 Oct 1:55 pm EDT
Extended Forecast for

Plain City OH

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 80. Southwest wind around 10 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 64. South wind around 8 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 85. Southwest wind 10 to 15 mph, with gusts as high as 26 mph.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67. Southwest wind 6 to 9 mph.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 80. Southwest wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 80 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers, mainly before 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 55 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers after 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 50%.

    High: 71 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.

    Low: 57 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers before 2pm. Partly sunny, with a high near 67. Breezy. Chance of precipitation is 40%.

    High: 67 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Columbus Day
Mostly sunny, with a high near 80. Southwest wind around 10 mph.
Tonight
Partly cloudy, with a low around 64. South wind around 8 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 85. Southwest wind 10 to 15 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 67. Southwest wind 6 to 9 mph.
Wednesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 80. Southwest wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A chance of showers, mainly before 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A chance of showers after 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 50%.
Thursday Night
Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Friday
A chance of showers before 2pm. Partly sunny, with a high near 67. Breezy. Chance of precipitation is 40%.
Friday Night
Partly cloudy, with a low around 37. Breezy.
Saturday
Sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Plain City OH
 40.11°N 83.27°W (Elev. 928 ft)
Last Update:
2:07 pm EDT Oct 12, 2026
Forecast Valid:
2pm EDT Oct 12, 2026-6pm EDT Oct 18, 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