Current conditions at

Marysville Union County Airport (KMRT)

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

Fog/Mist

70°F

21°C

Humidity 100%
Wind Speed E 1 mph
Barometer 30.06 in
Dewpoint 70°F (21°C)
Visibility 4.00 mi
Last update 29 Jun 7:15 am EDT
Detailed forecast for

Union County

Today
Areas of fog this morning. Partly cloudy. Highs in the upper 80s. South winds 5 to 10 mph.
Tonight
Partly cloudy. Muggy. Lows in the mid 70s. South winds 5 to 10 mph.
Tuesday
Mostly sunny. Humid with highs in the lower 90s. Southwest winds 5 to 10 mph. Heat index values up to 103.
Tuesday Night
Mostly clear. Muggy. Lows in the lower 70s. Southwest winds 5 to 10 mph.
Wednesday
Sunny, hot with highs in the mid 90s. West winds 5 to 10 mph. Heat index values up to 102.
Wednesday Night
Clear. Lows in the lower 70s.
Thursday
Sunny, hot with highs in the mid 90s.
Thursday Night
Clear. Unseasonably warm with lows in the mid 70s.
Friday
Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent.
Friday Night
Partly cloudy with a chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 40 percent.
Independence Day
Partly cloudy. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent.
Saturday Night
Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 70s. Chance of rain 40 percent.
Sunday
Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.



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613 AM EDT Mon Jun 29 2026
 
 

Additional Resources

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