Current conditions at

Marysville Union County Airport (KMRT)

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

Light Drizzle Haze

66°F

19°C

Humidity 32%
Wind Speed Vrbl 1 mph
Barometer 30.40 in
Dewpoint 36°F (2°C)
Visibility 5.00 mi
Last update 19 Oct 2:15 pm EDT
Detailed forecast for

Union County

This Afternoon
Sunny. Highs in the mid 60s. Light and variable winds.
Tonight
Clear. Lows in the upper 30s. Light and variable winds.
Tuesday
Sunny. Highs in the upper 60s. Northeast winds around 5 mph.
Tuesday Night
Clear in the evening, then becoming partly cloudy. Lows in the lower 40s. Northeast winds around 5 mph.
Wednesday
Partly cloudy in the morning, then clearing. Highs in the upper 60s. Light and variable winds, becoming north around 5 mph in the afternoon.
Wednesday Night
Clear. Lows in the lower 40s.
Thursday
Mostly sunny. Highs in the upper 60s.
Thursday Night
Clear. Lows in the mid 40s.
Friday
Sunny. Highs in the mid 60s.
Friday Night
Clear. Lows around 40.
Saturday
Sunny. Highs in the upper 60s.
Saturday Night
Mostly clear. Lows in the lower 40s.
Sunday
Mostly sunny in the morning, then becoming partly cloudy. Highs around 70.



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1214 PM EDT Mon Oct 19 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database