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

82°F

28°C

Humidity 35%
Wind Speed SW 5 mph
Barometer 30.24 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 5 Oct 1:31 pm EDT
Extended Forecast for

Plain City OH

  • This Afternoon

    This Afternoon: Sunny, with a high near 84. South wind 6 to 8 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 54. South wind around 6 mph becoming calm after midnight.

    Low: 54 °F

    Clear

  • Monday

    Monday: Mostly sunny, with a high near 83. Southwest wind 3 to 8 mph.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 61. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Partly Cloudy
    then Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 8am, then showers between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 73. South wind 6 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 73 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 48 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 84. South wind 6 to 8 mph.
Tonight
Clear, with a low around 54. South wind around 6 mph becoming calm after midnight.
Monday
Mostly sunny, with a high near 83. Southwest wind 3 to 8 mph.
Monday Night
Showers likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 61. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers likely and possibly a thunderstorm before 8am, then showers between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 73. South wind 6 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Clear, with a low around 37.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 37.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 70.
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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:
12:00 pm EDT Oct 5, 2025
Forecast Valid:
1pm EDT Oct 5, 2025-6pm EDT Oct 11, 2025
 
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