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Hazardous Weather Conditions

Current conditions at

Marysville Union County Airport (KMRT)

Lat: 40.22°NLon: 83.35°WElev: 1021ft.

Fair

70°F

21°C

Humidity 83%
Wind Speed S 6 mph
Barometer 29.94 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 13 Oct 10:55 pm EDT
Extended Forecast for

Irwin OH

  • Tonight

    Tonight: Mostly clear, with a low around 67. Southwest wind around 7 mph.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 80. Southwest wind around 7 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Slight Chance
    T-storms then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 3am, then a slight chance of showers between 3am and 5am. Low around 56. Northeast wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Showers then
    Slight Chance
    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 70. Northeast wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 57. South wind 7 to 14 mph becoming southwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers

  • Friday

    Friday: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm. Mostly cloudy, with a high near 60. Breezy. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 60 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 67. Southwest wind around 7 mph.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 80. Southwest wind around 7 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 3am, then a slight chance of showers between 3am and 5am. Low around 56. Northeast wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 70. Northeast wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm. Low around 57. South wind 7 to 14 mph becoming southwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm. Mostly cloudy, with a high near 60. Breezy. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Partly cloudy, with a low around 35.
Saturday
Sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 67.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Partly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Irwin OH
 40.12°N 83.47°W (Elev. 997 ft)
Last Update:
4:00 pm EDT Oct 13, 2026
Forecast Valid:
11pm EDT Oct 13, 2026-6pm EDT Oct 20, 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