Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Butler County Regional Airport (KHAO)

Lat: 39.36°NLon: 84.52°WElev: 607ft.

Overcast

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 29.53 in (999.4 mb)
Dewpoint 70°F (21°C)
Visibility 7.00 mi
Last update 18 Jun 3:53 am EDT
Extended Forecast for

Northbrook OH

Flood Watch June 18, 04:49am until June 18, 10:00am
Flood Advisory until June 18, 05:15am
Click here for hazard details and duration
Flood Watch
Flood Advisory
  •  
    Flood Watch June 18, 04:49am until June 18, 10:00am
    Flood Advisory until June 18, 05:15am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 69 °F

    Severe
    Thunderstorms

  • Thursday

    Thursday: A chance of showers and thunderstorms.  Increasing clouds, with a high near 82. West wind 13 to 15 mph, with gusts as high as 28 mph.  Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 59. Northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 59 °F

    Decreasing
    Clouds

  • Juneteenth

    Juneteenth: Sunny, with a high near 79. Light west wind becoming northwest 5 to 10 mph in the morning.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 82. Chance of precipitation is 20%.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 83. Chance of precipitation is 50%.

    High: 83 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 5am, then a chance of showers and thunderstorms after 5am. Some of the storms could be severe. Mostly cloudy, with a low around 69. Southwest wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms. Increasing clouds, with a high near 82. West wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 59. Northwest wind 5 to 7 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 79. Light west wind becoming northwest 5 to 10 mph in the morning.
Friday Night
Partly cloudy, with a low around 59. Northwest wind around 6 mph becoming calm in the evening.
Saturday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 65. Chance of precipitation is 90%.
Monday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Monday Night
A chance of showers. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Northbrook OH
 39.26°N 84.57°W (Elev. 899 ft)
4:00 am EDT Jun 18, 2026
4am EDT Jun 18, 2026-6pm EDT Jun 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database