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

Hazardous Weather Conditions

Current conditions at

Marysville Union County Airport (KMRT)

Lat: 40.22°NLon: 83.35°WElev: 1021ft.

Light Rain Fog/Mist

41°F

5°C

Humidity 100%
Wind Speed N 8 mph
Barometer 30.17 in
Dewpoint 41°F (5°C)
Visibility 1.75 mi
Wind Chill36°F (2°C)
Last update 4 Mar 6:35 am EST
Extended Forecast for

3 Miles WSW Irwin OH

  • Today

    Today: Rain likely, then rain and possibly a thunderstorm after 4pm. Patchy fog before noon. High near 55. Light and variable wind becoming east around 6 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 55 °F

    Rain and
    Patchy Fog

  • Tonight

    Tonight: Rain and thunderstorms before 1am, then rain between 1am and 4am, then rain likely and possibly a thunderstorm after 4am. Low around 51. Southeast wind 3 to 6 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 51 °F

    Rain

  • Thursday

    Thursday: Rain and possibly a thunderstorm before 10am, then rain between 10am and 1pm, then rain and possibly a thunderstorm after 1pm. High near 64. Southwest wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 64 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 56. Southwest wind 5 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 56 °F

    Rain Likely

  • Friday

    Friday: A chance of rain before 10am, then a chance of rain and thunderstorms between 10am and 1pm, then a slight chance of rain after 1pm. Mostly cloudy, with a high near 73. South wind 5 to 14 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Chance Rain

  • Friday Night

    Friday Night: A chance of rain after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Partly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: Rain. High near 69. Chance of precipitation is 100%.

    High: 69 °F

    Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

Today
Rain likely, then rain and possibly a thunderstorm after 4pm. Patchy fog before noon. High near 55. Light and variable wind becoming east around 6 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain and thunderstorms before 1am, then rain between 1am and 4am, then rain likely and possibly a thunderstorm after 4am. Low around 51. Southeast wind 3 to 6 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
Rain and possibly a thunderstorm before 10am, then rain between 10am and 1pm, then rain and possibly a thunderstorm after 1pm. High near 64. Southwest wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 56. Southwest wind 5 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A chance of rain before 10am, then a chance of rain and thunderstorms between 10am and 1pm, then a slight chance of rain after 1pm. Mostly cloudy, with a high near 73. South wind 5 to 14 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of rain after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. High near 69. Chance of precipitation is 100%.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 68.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
A chance of rain. Mostly cloudy, with a high near 74. Breezy. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Irwin OH
 40.12°N 83.53°W (Elev. 1066 ft)
Last Update:
5:51 am EST Mar 4, 2026
Forecast Valid:
6am EST Mar 4, 2026-6pm EDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

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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