Waukesha · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Waukesha & neighbors — hit play
Every city on the map carries real forecast data from the same models as its city page, refreshed several times a day. The icon is the day's overall look; the number is the afternoon high.
Next 14 days at a glance
from the model forecast
Hottest day
84°
Thu, Sep 10
Coldest night
54°
Tue, Sep 8
Days with precip
4 / 14
of 14 forecast days
Nicest day
Fri, Sep 11
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
82° 66°
29% precip chance
Sat 12 – Sun 13 Sep
82° 59°
82% precip chance
Sat 19 – Sun 20 Sep
77° 63°
typical range
Sat 26 – Sun 27 Sep
80° 63°
typical range
30 days — Waukesha
14 forecast + 16 climatology
Wed · Today Showers
83°70°0.3 mm⌄
Wind13 mph NE
Gusts23 mph
UV index7 – High
Precip chance40%
Sunrise06:18
Sunset19:26
Thu · Tomorrow Fog
82°73°1.0 mm⌄
Wind11 mph W
Gusts15 mph
UV index5 – Moderate
Precip chance65%
Sunrise06:19
Sunset19:24
Friday 4/9 Thunderstorms
82°67°0.2 mm⌄
Wind11 mph E
Gusts20 mph
UV index6 – High
Precip chance46%
Sunrise06:20
Sunset19:23
Saturday 5/9 Sunny
79°67°17%⌄
Wind9 mph E
Gusts19 mph
UV index7 – High
Precip chance17%
Sunrise06:21
Sunset19:21
Sunday 6/9 Sunny
82°66°0.2 mm⌄
Wind8 mph SE
Gusts16 mph
UV index7 – High
Precip chance29%
Sunrise06:22
Sunset19:19
Monday 7/9 Showers
74°60°9.3 mm⌄
Wind17 mph NE
Gusts29 mph
UV index5 – Moderate
Precip chance91%
Sunrise06:24
Sunset19:17
Tuesday 8/9 Showers
60°54°17.8 mm⌄
Wind20 mph NE
Gusts32 mph
UV index3 – Moderate
Precip chance91%
Sunrise06:25
Sunset19:16
Wednesday 9/9 Mostly cloudy
65°56°0.1 mm⌄
Wind14 mph SE
Gusts24 mph
UV index5 – Moderate
Precip chance23%
Sunrise06:26
Sunset19:14
Thursday 10/9 Fog
84°65°0.6 mm⌄
Wind12 mph SW
Gusts26 mph
UV index6 – High
Precip chance55%
Sunrise06:27
Sunset19:12
Friday 11/9 Mostly cloudy
73°60°11%⌄
Wind13 mph NW
Gusts27 mph
UV index5 – Moderate
Precip chance11%
Sunrise06:28
Sunset19:10
Saturday 12/9 Mostly cloudy
70°59°0.1 mm⌄
Wind12 mph E
Gusts21 mph
UV index5 – Moderate
Precip chance27%
Sunrise06:29
Sunset19:08
Sunday 13/9 Showers
82°62°12.1 mm⌄
Wind11 mph S
Gusts23 mph
UV index7 – High
Precip chance82%
Sunrise06:30
Sunset19:07
Monday 14/9 Sunny
75°60°19%⌄
Wind13 mph NE
Gusts30 mph
UV index5 – Moderate
Precip chance19%
Sunrise06:31
Sunset19:05
Tuesday 15/9 Showers
67°59°0.5 mm⌄
Wind11 mph NE
Gusts23 mph
UV index4 – Moderate
Precip chance48%
Sunrise06:32
Sunset19:03
Wednesday 16/9 Rain (climatological)
76°63°11.7 mm⌄
Day≈71–81°
Night≈58–68°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
79°65°20%⌄
Day≈74–85°
Night≈60–70°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
81°66°20%⌄
Day≈76–87°
Night≈61–72°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
77°64°10.7 mm⌄
Day≈72–82°
Night≈58–69°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
76°63°20%⌄
Day≈70–81°
Night≈58–68°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
71°60°20%⌄
Day≈66–76°
Night≈55–65°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
71°60°8.9 mm⌄
Day≈66–76°
Night≈55–65°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
74°62°20%⌄
Day≈69–80°
Night≈57–67°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
80°65°20%⌄
Day≈74–85°
Night≈60–71°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
80°65°7.1 mm⌄
Day≈74–85°
Night≈60–71°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
80°65°20%⌄
Day≈74–85°
Night≈60–71°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
76°63°20%⌄
Day≈71–81°
Night≈58–68°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Rain (climatological)
72°61°7.7 mm⌄
Day≈67–78°
Night≈55–66°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
73°61°20%⌄
Day≈67–78°
Night≈56–67°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
77°64°20%⌄
Day≈71–82°
Night≈58–69°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Rain (climatological)
64°52°10.1 mm⌄
Day≈59–70°
Night≈46–57°
Precip≈3.6 in / October
(climatological)Typical range for these dates · 1991–2020
How does a 30-day outlook work?
The first 14 days are a live model forecast. The back half of the month shows the typical range for those dates — useful for planning, not a literal prediction.
First 14 days: a real forecast, blended from NBM, ECMWF and GFS runs. Trust it most inside three days; by the second week treat it as a lean, not a promise.
Rest of the month: past day 14 we stop pretending to forecast and switch to the climate corridor — the range those dates have produced over three decades computed directly for Waukesha, with mild week-to-week wiggle.
Good question for this page: "Is late August usually humid in Chicago?" Bad question: "Do I need an umbrella on the 29th?" — three weeks out no one knows, and that's the honest answer.