Sauk City · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Sauk City & 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
86°
Wed, Sep 2
Coldest night
49°
Tue, Sep 8
Days with precip
4 / 14
of 14 forecast days
Nicest day
Thu, Aug 27
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
84° 66°
66% precip chance
Sat 5 – Sun 6 Sep
83° 67°
24% precip chance
Sat 12 – Sun 13 Sep
73° 56°
typical range
Sat 19 – Sun 20 Sep
73° 55°
typical range
30 days — Sauk City
14 forecast + 16 climatology
Wed · Today Sunny
83°63°8%⌄
Wind13 mph NW
Gusts28 mph
UV index7 – High
Precip chance8%
Sunrise06:16
Sunset19:44
Thu · Tomorrow Sunny
76°59°6%⌄
Wind9 mph NW
Gusts16 mph
UV index7 – High
Precip chance6%
Sunrise06:17
Sunset19:43
Friday 28/8 Sunny
78°60°10%⌄
Wind11 mph SE
Gusts23 mph
UV index7 – High
Precip chance10%
Sunrise06:18
Sunset19:41
Saturday 29/8 Mostly cloudy
76°66°0.9 mm⌄
Wind15 mph S
Gusts38 mph
UV index6 – High
Precip chance62%
Sunrise06:19
Sunset19:39
Sunday 30/8 Mostly cloudy
84°67°1.5 mm⌄
Wind19 mph SW
Gusts41 mph
UV index6 – High
Precip chance66%
Sunrise06:20
Sunset19:38
Monday 31/8 Showers
86°71°0.7 mm⌄
Wind13 mph SW
Gusts38 mph
UV index7 – High
Precip chance46%
Sunrise06:22
Sunset19:36
Tuesday 1/9 Mostly cloudy
83°66°17%⌄
Wind11 mph E
Gusts27 mph
UV index7 – High
Precip chance17%
Sunrise06:23
Sunset19:34
Wednesday 2/9 Showers
86°67°0.3 mm⌄
Wind13 mph SE
Gusts33 mph
UV index8 – Very high
Precip chance36%
Sunrise06:24
Sunset19:32
Thursday 3/9 Mostly cloudy
84°72°19%⌄
Wind12 mph SE
Gusts23 mph
UV index6 – High
Precip chance19%
Sunrise06:25
Sunset19:31
Friday 4/9 Mostly cloudy
81°67°1.4 mm⌄
Wind10 mph E
Gusts16 mph
UV index6 – High
Precip chance72%
Sunrise06:26
Sunset19:29
Saturday 5/9 Fog
81°67°24%⌄
Wind12 mph SE
Gusts27 mph
UV index6 – High
Precip chance24%
Sunrise06:27
Sunset19:27
Sunday 6/9 Mostly cloudy
83°67°17%⌄
Wind11 mph SE
Gusts29 mph
UV index7 – High
Precip chance17%
Sunrise06:28
Sunset19:25
Monday 7/9 Sunny
84°60°16%⌄
Wind15 mph NW
Gusts28 mph
UV index7 – High
Precip chance16%
Sunrise06:29
Sunset19:24
Tuesday 8/9 Showers
59°49°9.7 mm⌄
Wind12 mph N
Gusts24 mph
UV index3 – Moderate
Precip chance90%
Sunrise06:30
Sunset19:22
Wednesday 9/9 Rain (climatological)
70°56°4.1 mm⌄
Day≈65–75°
Night≈51–61°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
74°58°20%⌄
Day≈69–80°
Night≈53–64°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
78°61°20%⌄
Day≈73–84°
Night≈56–66°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
73°58°3.4 mm⌄
Day≈68–79°
Night≈53–63°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
70°56°20%⌄
Day≈64–75°
Night≈50–61°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
68°55°20%⌄
Day≈62–73°
Night≈49–60°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Light rain (climatological)
71°56°1.8 mm⌄
Day≈65–76°
Night≈51–62°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
72°57°20%⌄
Day≈67–78°
Night≈52–63°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
77°60°20%⌄
Day≈72–82°
Night≈55–65°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
75°59°4.2 mm⌄
Day≈70–80°
Night≈54–64°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
73°58°20%⌄
Day≈68–78°
Night≈52–63°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
68°55°20%⌄
Day≈62–73°
Night≈49–60°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Light rain (climatological)
69°56°1.9 mm⌄
Day≈64–75°
Night≈50–61°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
67°54°20%⌄
Day≈62–73°
Night≈49–60°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
73°58°20%⌄
Day≈68–79°
Night≈53–63°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
77°60°2.9 mm⌄
Day≈71–82°
Night≈55–65°
Precip≈1.3 in / September
(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 Sauk City, 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.