Widespread Excessive Heat and Humidity in Midwest to Spread to East Coast

High pressure building across the Central and Eastern U.S. will produce a dangerous combination of heat and humidity. Heat indices from unusually high dewpoints and well above normal temperatures may reach 110 to 115 degrees. In addition, near record warm low temperatures will limit recovery from hot daytime temperatures. Read More >

Hazardous Weather Conditions

Current conditions at

Marysville Union County Airport (KMRT)

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

Overcast

72°F

22°C

Humidity	93%
Wind Speed	NE 9 G 17 mph
Barometer	29.99 in
Dewpoint	69°F (21°C)
Visibility	0.25 mi
Last update	18 Jul 5:15 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Mobile Weather Hourly Weather Forecast

Detailed forecast for

Union County

Tonight

Partly cloudy with a chance of showers and thunderstorms this evening, then mostly clear after midnight. Unseasonably warm with lows in the mid 70s. Southwest winds around 10 mph. Chance of rain 50 percent.

Friday

Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. Southwest winds 10 to 15 mph. Chance of rain 20 percent. Heat index values up to 107.

Friday Night

Mostly clear. Muggy and unseasonably warm. Lows in the mid 70s. Southwest winds 5 to 10 mph.

Saturday

Mostly sunny. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 107.

Saturday Night

Mostly clear. Muggy. Lows in the mid 70s. Southwest winds 5 to 10 mph.

Sunday

Partly cloudy. A chance of showers and thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 60 percent.

Sunday Night

Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the upper 60s. Chance of rain 70 percent.

Monday

Partly cloudy. Highs in the lower 80s.

Monday Night

Partly cloudy in the evening, then clearing. Lows in the lower 60s.

Tuesday

Mostly sunny. Highs in the upper 70s.

Tuesday Night

Mostly clear. Lows around 60.

Wednesday

Mostly sunny. Highs in the lower 80s.

Wednesday Night

Mostly clear. Lows in the lower 60s.