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

61°F

16°C

Humidity 36%
Wind Speed Vrbl 2 mph
Barometer 30.16 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 12 May 11:55 am EDT
Extended Forecast for

3 Miles E North Lewisburg OH

  • This Afternoon

    This Afternoon: Sunny, with a high near 71. Light and variable wind becoming southwest around 6 mph.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Showers, mainly after 1am. Low around 55. South wind 8 to 14 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

    Mostly Cloudy
    then Showers

  • Wednesday

    Wednesday: A chance of showers, mainly between 10am and noon. Partly sunny, with a high near 65. Northwest wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 42. Northwest wind 8 to 16 mph, with gusts as high as 28 mph.

    Low: 42 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 62. North wind around 11 mph, with gusts as high as 21 mph.

    High: 62 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 71. Light and variable wind becoming southwest around 6 mph.
Tonight
Showers, mainly after 1am. Low around 55. South wind 8 to 14 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
A chance of showers, mainly between 10am and noon. Partly sunny, with a high near 65. Northwest wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Cloudy, then gradually becoming partly cloudy, with a low around 42. Northwest wind 8 to 16 mph, with gusts as high as 28 mph.
Thursday
Mostly sunny, with a high near 62. North wind around 11 mph, with gusts as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Partly sunny, with a high near 70.
Friday Night
Mostly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Mostly cloudy, with a low around 66.
Monday
A chance of showers. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E North Lewisburg OH
 40.23°N 83.49°W (Elev. 1007 ft)
Last Update:
4:00 am EDT May 12, 2026
Forecast Valid:
12pm EDT May 12, 2026-6pm EDT May 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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