National Weather Service Forecast for: Brookfield WI
Issued by: National Weather Service Milwaukee, WI
Updated: 11:31 am CDT May 4, 2026
 
This
Afternoon
This Afternoon: A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 78. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph.
Slight Chance
T-storms and
Breezy
 Tonight

Tonight: A chance of rain and thunderstorms before 2am, then a slight chance of showers between 2am and 5am, then a chance of rain after 5am. Mostly cloudy, with a low around 43. West wind around 10 mph becoming northwest in the evening. Chance of precipitation is 40%.
Chance
T-storms then
Slight Chance
Showers
 Tuesday

Tuesday: Partly sunny, with a high near 57. Northwest wind 5 to 10 mph.
Partly Sunny

 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 38. Northwest wind around 5 mph.
Mostly Cloudy

 Wednesday

Wednesday: Partly sunny, with a high near 55. Northwest wind around 5 mph.
Partly Sunny

 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 37. West wind around 5 mph becoming calm in the evening.
Mostly Cloudy

 Thursday

Thursday: Partly sunny, with a high near 57. Light west wind increasing to 5 to 10 mph in the morning.
Partly Sunny

 Thursday
Night
Thursday Night: Mostly cloudy, with a low around 40. West wind around 5 mph becoming calm in the evening.
Mostly Cloudy

 Friday

Friday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 59.
Mostly Sunny
then Slight
Chance
Showers
Hi 78 °F Lo 43 °F Hi 57 °F Lo 38 °F Hi 55 °F Lo 37 °F Hi 57 °F Lo 40 °F Hi 59 °F

Special Weather Statement
Hazardous Weather Outlook
 

This Afternoon
 
 A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 78. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph.
Tonight
 
 A chance of rain and thunderstorms before 2am, then a slight chance of showers between 2am and 5am, then a chance of rain after 5am. Mostly cloudy, with a low around 43. West wind around 10 mph becoming northwest in the evening. Chance of precipitation is 40%.
Tuesday
 
 Partly sunny, with a high near 57. Northwest wind 5 to 10 mph.
Tuesday Night
 
 Mostly cloudy, with a low around 38. Northwest wind around 5 mph.
Wednesday
 
 Partly sunny, with a high near 55. Northwest wind around 5 mph.
Wednesday Night
 
 Mostly cloudy, with a low around 37. West wind around 5 mph becoming calm in the evening.
Thursday
 
 Partly sunny, with a high near 57. Light west wind increasing to 5 to 10 mph in the morning.
Thursday Night
 
 Mostly cloudy, with a low around 40. West wind around 5 mph becoming calm in the evening.
Friday
 
 A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 59.
Friday Night
 
 Partly cloudy, with a low around 39.
Saturday
 
 Sunny, with a high near 64.
Saturday Night
 
 A 20 percent chance of showers. Partly cloudy, with a low around 44.
Sunday
 
 A 20 percent chance of showers. Partly sunny, with a high near 64.

 

Forecast from NOAA-NWS for Brookfield WI.