Current conditions at

Marysville Union County Airport (KMRT)

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

Mostly Cloudy

73°F

23°C

Humidity 61%
Wind Speed W 10 G 18 mph
Barometer 30.06 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 24 Aug 3:15 pm EDT
Detailed forecast for

Union County

Tonight
Partly cloudy, then becoming mostly clear after midnight. Lows in the mid 50s. West winds 5 to 10 mph.
Tuesday
Mostly sunny. Highs in the upper 70s. West winds around 5 mph.
Tuesday Night
Partly cloudy. Lows in the upper 50s. Light and variable winds, becoming south around 5 mph after midnight.
Wednesday
Partly cloudy. Highs in the lower 80s. South winds 5 to 10 mph.
Wednesday Night
Partly cloudy. A chance of showers after midnight. Lows in the lower 60s. Southwest winds around 5 mph. Chance of rain 30 percent.
Thursday
Partly cloudy. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.
Thursday Night
Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 60s. Chance of rain 40 percent.
Friday
Sunny. Highs in the lower 80s.
Friday Night
Clear. Lows in the upper 50s.
Saturday
Mostly sunny. Highs in the lower 80s.
Saturday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s.
Sunday
Partly cloudy. Highs in the mid 80s.
Sunday Night
Partly cloudy. Lows in the mid 60s.
Monday
Partly cloudy. Highs in the mid 80s.



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220 PM EDT Mon Aug 24 2026
 
 

Additional Resources

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