Current conditions at

Marysville Union County Airport (KMRT)

Lat: 40.22°NLon: 83.35°WElev: 1021ft.

Overcast

64°F

18°C

Humidity 100%
Wind Speed NW 6 mph
Barometer 30.07 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 25 May 3:55 am EDT
Extended Forecast for

2 Miles NNW Irwin OH

Dense Fog Advisory until May 25, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until May 25, 09:00am

    NOW until 9:00am Mon

    Dense Fog Advisory

  • Overnight

    Low: 57 °F

    Cloudy

  • Memorial Day

    Memorial Day: Mostly cloudy, with a high near 76. Northeast wind around 7 mph.

    High: 76 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. Light northeast wind.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 81. Calm wind.

    High: 81 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am.  Mostly cloudy, with a low around 61. Calm wind.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 61 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 5pm.  Mostly cloudy, with a high near 81. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Overnight
Cloudy, with a low around 57. Light north wind.
Memorial Day
Mostly cloudy, with a high near 76. Northeast wind around 7 mph.
Monday Night
Partly cloudy, with a low around 55. Light northeast wind.
Tuesday
Partly sunny, with a high near 81. Calm wind.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 61. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 81. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 52.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Irwin OH
 40.16°N 83.47°W (Elev. 997 ft)
4:00 am EDT May 25, 2026
4am EDT May 25, 2026-6pm EDT May 31, 2026
 
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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