Fairfield · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Fairfield & 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
36°
Wed, Aug 26
Coldest night
12°
Thu, Sep 3
Days with precip
0 / 14
of 14 forecast days
Nicest day
Mon, Aug 31
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
29° 13°
3% precip chance
Sat 5 – Sun 6 Sep
33° 12°
2% precip chance
Sat 12 – Sun 13 Sep
29° 10°
typical range
Sat 19 – Sun 20 Sep
29° 11°
typical range
30 days — Fairfield
14 forecast + 16 climatology
Wed · Today Sunny
36°15°3%⌄
Wind12 mph SW
Gusts19 mph
UV index9 – Very high
Precip chance3%
Sunrise06:32
Sunset19:47
Thu · Tomorrow Sunny
36°16°4%⌄
Wind12 mph SW
Gusts24 mph
UV index9 – Very high
Precip chance4%
Sunrise06:33
Sunset19:45
Friday 28/8 Mostly cloudy
32°15°4%⌄
Wind13 mph SW
Gusts24 mph
UV index8 – Very high
Precip chance4%
Sunrise06:34
Sunset19:44
Saturday 29/8 Sunny
28°13°3%⌄
Wind15 mph SW
Gusts23 mph
UV index7 – High
Precip chance3%
Sunrise06:35
Sunset19:42
Sunday 30/8 Sunny
29°13°3%⌄
Wind14 mph SW
Gusts24 mph
UV index7 – High
Precip chance3%
Sunrise06:36
Sunset19:41
Monday 31/8 Sunny
25°13°4%⌄
Wind14 mph SW
Gusts24 mph
UV index6 – High
Precip chance4%
Sunrise06:37
Sunset19:39
Tuesday 1/9 Sunny
28°13°3%⌄
Wind12 mph SW
Gusts21 mph
UV index7 – High
Precip chance3%
Sunrise06:37
Sunset19:38
Wednesday 2/9 Sunny
29°12°1%⌄
Wind12 mph SW
Gusts20 mph
UV index7 – High
Precip chance1%
Sunrise06:38
Sunset19:36
Thursday 3/9 Sunny
32°12°4%⌄
Wind11 mph SW
Gusts21 mph
UV index8 – Very high
Precip chance4%
Sunrise06:39
Sunset19:35
Friday 4/9 Mostly cloudy
28°14°11%⌄
Wind9 mph SW
Gusts19 mph
UV index6 – High
Precip chance11%
Sunrise06:40
Sunset19:33
Saturday 5/9 Sunny
30°12°2%⌄
Wind11 mph SW
Gusts16 mph
UV index7 – High
Precip chance2%
Sunrise06:41
Sunset19:32
Sunday 6/9 Sunny
33°17°1%⌄
Wind12 mph SW
Gusts20 mph
UV index8 – Very high
Precip chance1%
Sunrise06:42
Sunset19:30
Monday 7/9 Sunny
32°17°1%⌄
Wind14 mph SW
Gusts21 mph
UV index8 – Very high
Precip chance1%
Sunrise06:43
Sunset19:29
Tuesday 8/9 Sunny
34°15°1%⌄
Wind14 mph SW
Gusts22 mph
UV index8 – Very high
Precip chance1%
Sunrise06:43
Sunset19:27
Wednesday 9/9 Light rain (climatological)
28°12°0.9 mm⌄
Day≈25–31°
Night≈9–15°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
29°12°20%⌄
Day≈26–32°
Night≈9–15°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
31°13°20%⌄
Day≈28–34°
Night≈10–16°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Light rain (climatological)
29°12°1.2 mm⌄
Day≈26–32°
Night≈9–15°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
25°10°20%⌄
Day≈22–28°
Night≈7–13°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
25°9°20%⌄
Day≈22–28°
Night≈6–12°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Light rain (climatological)
27°11°1.6 mm⌄
Day≈24–30°
Night≈8–14°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
26°11°20%⌄
Day≈23–29°
Night≈8–14°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
29°12°20%⌄
Day≈26–32°
Night≈9–15°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Light rain (climatological)
29°12°1.1 mm⌄
Day≈26–32°
Night≈9–15°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
29°12°20%⌄
Day≈26–32°
Night≈9–15°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
27°11°20%⌄
Day≈24–30°
Night≈8–14°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Light rain (climatological)
25°10°2.0 mm⌄
Day≈22–28°
Night≈7–13°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
24°9°20%⌄
Day≈21–27°
Night≈6–12°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
29°12°20%⌄
Day≈26–32°
Night≈9–15°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Light rain (climatological)
30°13°1.4 mm⌄
Day≈27–33°
Night≈10–16°
Precip≈0.6 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 Fairfield, 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.