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Severe Weather Summary - June 18, 2026

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Butler County Regional Airport (KHAO)

Lat: 39.36°NLon: 84.52°WElev: 607ft.

Fair

62°F

17°C

Humidity	93%
Wind Speed	Calm
Barometer	30.01 in (1015.7 mb)
Dewpoint	60°F (16°C)
Visibility	10.00 mi
Last update	20 Jun 6:53 am EDT

More Information:

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

Extended Forecast for

Northbrook OH

Today
High: 81 °F
Mostly Sunny
Tonight
Low: 60 °F
Mostly Clear
Sunday
High: 84 °F
Increasing
Clouds
Sunday Night
Low: 67 °F
Heavy Rain
Monday
High: 79 °F
Showers
Monday Night
Low: 60 °F
Partly Cloudy
Tuesday
High: 79 °F
Sunny
Tuesday Night
Low: 60 °F
Mostly Clear
Wednesday
High: 81 °F
Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 81. Light west wind increasing to 5 to 10 mph in the morning.

Tonight

Mostly clear, with a low around 60. West wind around 5 mph becoming calm in the evening.

Sunday

Increasing clouds, with a high near 84. Calm wind becoming south around 6 mph in the afternoon.

Sunday Night

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Some of the storms could produce heavy rainfall. Low around 67. Southeast wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

Monday

Showers and possibly a thunderstorm. High near 79. Southwest wind 11 to 13 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

Partly cloudy, with a low around 60.

Tuesday

Sunny, with a high near 79.

Tuesday Night

Mostly clear, with a low around 60.

Wednesday

Sunny, with a high near 81.

Wednesday Night

Partly cloudy, with a low around 61.

Thursday

Mostly sunny, with a high near 81.