National Weather Service Forecast for: West Allis WI
Issued by: National Weather Service Milwaukee, WI
Updated: 2:24 pm CDT Apr 16, 2025
 
This
Afternoon
This Afternoon: Sunny, with a high near 46. East wind 5 to 10 mph.
Sunny

 Tonight

Tonight: Partly cloudy, with a low around 35. Southeast wind 5 to 10 mph.
Partly Cloudy

 Thursday

Thursday: A 20 percent chance of showers after 4pm. Increasing clouds, with a high near 61. Southeast wind 10 to 15 mph, with gusts as high as 30 mph.
Partly Sunny
then Slight
Chance
Showers
 Thursday
Night
Thursday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 52. South wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Chance
T-storms then
Showers
Likely
 Friday

Friday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 75. South wind 10 to 15 mph.
Chance
Showers

 Friday
Night
Friday Night: A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 43. Northwest wind around 10 mph.
Chance
Showers

 Saturday

Saturday: Mostly cloudy, with a high near 52. North wind 5 to 10 mph.
Mostly Cloudy

 Saturday
Night
Saturday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 38. Northeast wind around 5 mph.
Mostly Cloudy
then Slight
Chance
Showers
 Sunday

Sunday: A 50 percent chance of showers. Mostly cloudy, with a high near 51.
Chance
Showers
Hi 46 °F Lo 35 °F Hi 61 °F Lo 52 °F Hi 75 °F Lo 43 °F Hi 52 °F Lo 38 °F Hi 51 °F

 

This Afternoon
 
 Sunny, with a high near 46. East wind 5 to 10 mph.
Tonight
 
 Partly cloudy, with a low around 35. Southeast wind 5 to 10 mph.
Thursday
 
 A 20 percent chance of showers after 4pm. Increasing clouds, with a high near 61. Southeast wind 10 to 15 mph, with gusts as high as 30 mph.
Thursday Night
 
 A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 52. South wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday
 
 A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 75. South wind 10 to 15 mph.
Friday Night
 
 A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 43. Northwest wind around 10 mph.
Saturday
 
 Mostly cloudy, with a high near 52. North wind 5 to 10 mph.
Saturday Night
 
 A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 38. Northeast wind around 5 mph.
Sunday
 
 A 50 percent chance of showers. Mostly cloudy, with a high near 51.
Sunday Night
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.
Monday
 
 A 40 percent chance of showers. Partly sunny, with a high near 55.
Monday Night
 
 Mostly clear, with a low around 38.
Tuesday
 
 A 20 percent chance of showers. Mostly sunny, with a high near 63.

 

Forecast from NOAA-NWS for West Allis WI.