| National Weather Service Forecast for:
Waukesha WI Issued by: National Weather Service Milwaukee, WI |
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| Updated: 12:27 pm CDT May 4, 2026 | ||||||||||||||||||
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Special Weather Statement
Hazardous Weather Outlook
| This Afternoon |
Mostly sunny, with a high near 76. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. |
| Tonight |
A chance of rain and thunderstorms before 10pm, then a slight chance of showers after 1am. Mostly cloudy, with a low around 43. Northwest wind 5 to 10 mph. Chance of precipitation is 40%. |
| Tuesday |
Partly sunny, with a high near 56. Northwest wind 5 to 10 mph. |
| Tuesday Night |
Mostly cloudy, with a low around 37. Northwest wind around 5 mph becoming calm in the evening. |
| Wednesday |
Areas of frost before 7am. Otherwise, partly sunny, with a high near 54. Northwest wind 5 to 10 mph. |
| Wednesday Night |
Areas of frost after 3am. Otherwise, mostly cloudy, with a low around 35. Northwest wind around 5 mph becoming calm in the evening. |
| Thursday |
A 20 percent chance of showers after 1pm. Areas of frost before 8am. Otherwise, mostly 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 39. West wind around 5 mph becoming calm in the evening. |
| Friday |
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 62. |
| Friday Night |
Partly cloudy, with a low around 40. |
| Saturday |
Mostly sunny, with a high near 66. |
| Saturday Night |
Mostly 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 Waukesha WI.