Current conditions at

Marysville Union County Airport (KMRT)

Lat: 40.22°NLon: 83.35°WElev: 1021ft.

Fog/Mist

68°F

20°C

Humidity 100%
Wind Speed S 1 mph
Barometer 30.15 in
Dewpoint 68°F (20°C)
Visibility 0.75 mi
Last update 15 Aug 3:55 am EDT
Extended Forecast for

Marysville OH

Flood Watch August 15, 12:00pm until August 16, 08:00am
Click here for hazard details and duration
Flood Watch
  • Today

    Today: A chance of showers and thunderstorms after 2pm.  Mostly cloudy, with a high near 83. Calm wind becoming south around 5 mph in the afternoon.  Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall.  Low around 70. Southeast wind around 6 mph becoming southwest after midnight.  Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 70 °F

    Heavy Rain

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm.  Partly sunny, with a high near 85. West wind 8 to 13 mph, with gusts as high as 24 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 85 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 68. West wind 6 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 79. Northwest wind 6 to 9 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 81. Chance of precipitation is 50%.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 83. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Low around 70. Southeast wind around 6 mph becoming southwest after midnight. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 85. West wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. West wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 79. Northwest wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Thursday
Partly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Marysville OH
 40.25°N 83.37°W (Elev. 997 ft)
4:00 am EDT Aug 15, 2026
4am EDT Aug 15, 2026-6pm EDT Aug 21, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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