National Weather Service Forecast for: Brookfield WI
Issued by: National Weather Service Milwaukee, WI
Updated: 3:57 pm CST Dec 20, 2025
 
Tonight

Tonight: Clear, with a low around 9. Wind chill values between -5 and 5. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Clear and
Breezy then
Clear
 Sunday

Sunday: Sunny, with a high near 24. Wind chill values between zero and 10. West wind 5 to 10 mph becoming southwest in the afternoon.
Sunny

 Sunday
Night
Sunday Night: A 20 percent chance of snow after midnight. Increasing clouds, with a temperature falling to near 20 by 8pm, then rising to around 27 during the remainder of the night. Southwest wind 5 to 10 mph.
Partly Cloudy
then Slight
Chance Snow
 Monday

Monday: A 30 percent chance of snow before noon. Cloudy, with a high near 38. South wind around 10 mph.
Chance Snow
then Cloudy
 Monday
Night
Monday Night: Mostly cloudy, with a low around 32. South wind 5 to 10 mph becoming west after midnight.
Mostly Cloudy

 Tuesday

Tuesday: Mostly sunny, with a high near 40. West wind 5 to 10 mph.
Mostly Sunny

 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 26. Northwest wind around 5 mph becoming calm in the evening.
Mostly Cloudy

 Wednesday

Wednesday: A 30 percent chance of rain after noon. Cloudy, with a high near 41. Southeast wind 5 to 10 mph.
Cloudy then
Chance Rain
 Wednesday
Night
Wednesday Night: A 40 percent chance of rain before midnight. Cloudy, with a low around 37.
Chance Rain
then Cloudy
Lo 9 °F Hi 24 °F Lo 20 °F⇑ Hi 38 °F Lo 32 °F Hi 40 °F Lo 26 °F Hi 41 °F Lo 37 °F

 

Tonight
 
 Clear, with a low around 9. Wind chill values between -5 and 5. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Sunday
 
 Sunny, with a high near 24. Wind chill values between zero and 10. West wind 5 to 10 mph becoming southwest in the afternoon.
Sunday Night
 
 A 20 percent chance of snow after midnight. Increasing clouds, with a temperature falling to near 20 by 8pm, then rising to around 27 during the remainder of the night. Southwest wind 5 to 10 mph.
Monday
 
 A 30 percent chance of snow before noon. Cloudy, with a high near 38. South wind around 10 mph.
Monday Night
 
 Mostly cloudy, with a low around 32. South wind 5 to 10 mph becoming west after midnight.
Tuesday
 
 Mostly sunny, with a high near 40. West wind 5 to 10 mph.
Tuesday Night
 
 Mostly cloudy, with a low around 26. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
 
 A 30 percent chance of rain after noon. Cloudy, with a high near 41. Southeast wind 5 to 10 mph.
Wednesday Night
 
 A 40 percent chance of rain before midnight. Cloudy, with a low around 37.
Christmas Day
 
 Mostly cloudy, with a high near 49.
Thursday Night
 
 Mostly cloudy, with a low around 33.
Friday
 
 Mostly cloudy, with a high near 41.
Friday Night
 
 Mostly cloudy, with a low around 29.
Saturday
 
 A 20 percent chance of rain. Mostly cloudy, with a high near 38.

 

Forecast from NOAA-NWS for Brookfield WI.