Current conditions at

Marysville Union County Airport (KMRT)

Lat: 40.22° N Lon: 83.35° W Elev: 1021 ft.

Fog/Mist

66°F

19°C

Humidity 100%
Wind Speed S 2 mph
Barometer 29.99 in
Dewpoint 66°F (19°C)
Visibility 1.25 mi
Last update 11 Aug 11:15 pm EDT
Detailed forecast for

Union County

Tonight
Mostly cloudy. A chance of showers and thunderstorms this evening, then showers likely with a slight chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall. Lows in the mid 60s. West winds 5 to 10 mph. Chance of rain 70 percent.
Wednesday
Partly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Humid with highs in the lower 80s. West winds 5 to 10 mph. Chance of rain 50 percent.
Wednesday Night
Partly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Muggy. Lows in the mid 60s. Southwest winds 5 to 10 mph. Chance of rain 50 percent.
Thursday
Showers likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. Southwest winds around 5 mph. Chance of rain 70 percent.
Thursday Night
Showers likely with a chance of thunderstorms. Muggy. Lows in the mid 60s. West winds around 5 mph. Chance of rain 70 percent.
Friday
Partly cloudy. Showers likely, mainly in the morning. Highs around 80. Chance of rain 60 percent.
Friday Night
Partly cloudy. Lows in the upper 50s.
Saturday
Mostly sunny in the morning, then becoming partly cloudy. Highs around 80.
Saturday Night
Partly cloudy. A chance of showers after midnight. Lows in the mid 60s. Chance of rain 40 percent.
Sunday
Partly cloudy. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent.
Sunday Night
Partly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the upper 60s. Chance of rain 50 percent.
Monday
Partly cloudy. Highs around 80.
Monday Night
Partly cloudy. Lows around 60.
Tuesday
Partly cloudy. Highs around 80.



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601 PM EDT Tue Aug 11 2026
 
 

Additional Resources

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