Current conditions at

Marysville Union County Airport (KMRT)

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

Fair

43°F

6°C

Humidity 100%
Wind Speed Calm
Barometer 30.23 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 15 Oct 3:36 am EDT
Detailed forecast for

Union County

Rest Of Tonight
Mostly clear. Lows in the mid 40s. North winds around 5 mph.
Wednesday
Partly cloudy. Highs in the upper 60s. North winds 5 to 10 mph.
Wednesday Night
Clear. Lows around 40. North winds 5 to 10 mph.
Thursday
Sunny. Highs in the mid 60s. Northeast winds around 5 mph.
Thursday Night
Clear. Lows in the mid 30s. East winds around 5 mph.
Friday
Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 60s.
Friday Night
Mostly cloudy. Lows in the upper 40s.
Saturday
Partly cloudy. A chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 30 percent.
Saturday Night
Showers. Lows in the mid 50s. Chance of rain 80 percent.
Sunday
Showers, mainly in the morning. Cooler with highs in the mid 60s. Chance of rain 80 percent.
Sunday Night
Partly cloudy. Showers likely, mainly in the evening. Cooler with lows around 40. Chance of rain 60 percent.
Monday
Mostly sunny. Highs in the lower 60s.
Monday Night
Mostly clear. Lows in the lower 40s.
Tuesday
Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 60s.



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1234 AM EDT Wed Oct 15 2025
 
 

Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database