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
97°
Wed, Aug 26
Coldest night
53°
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
84° 55°
3% precip chance
Sat 5 – Sun 6 Sep
91° 54°
2% precip chance
Sat 12 – Sun 13 Sep
84° 50°
typical range
Sat 19 – Sun 20 Sep
84° 52°
typical range
30 days — Fairfield
14 forecast + 16 climatology
Wed · Today Sunny
97°60°3%⌄
Wind12 mph SW
Gusts19 mph
UV index9 – Very high
Precip chance3%
Sunrise06:32
Sunset19:47
Thu · Tomorrow Sunny
96°61°4%⌄
Wind12 mph SW
Gusts24 mph
UV index9 – Very high
Precip chance4%
Sunrise06:33
Sunset19:45
Friday 28/8 Mostly cloudy
90°60°4%⌄
Wind13 mph SW
Gusts24 mph
UV index8 – Very high
Precip chance4%
Sunrise06:34
Sunset19:44
Saturday 29/8 Sunny
82°55°3%⌄
Wind15 mph SW
Gusts23 mph
UV index7 – High
Precip chance3%
Sunrise06:35
Sunset19:42
Sunday 30/8 Sunny
84°56°3%⌄
Wind14 mph SW
Gusts24 mph
UV index7 – High
Precip chance3%
Sunrise06:36
Sunset19:41
Monday 31/8 Sunny
76°56°4%⌄
Wind14 mph SW
Gusts24 mph
UV index6 – High
Precip chance4%
Sunrise06:37
Sunset19:39
Tuesday 1/9 Sunny
82°55°3%⌄
Wind12 mph SW
Gusts21 mph
UV index7 – High
Precip chance3%
Sunrise06:37
Sunset19:38
Wednesday 2/9 Sunny
84°54°1%⌄
Wind12 mph SW
Gusts20 mph
UV index7 – High
Precip chance1%
Sunrise06:38
Sunset19:36
Thursday 3/9 Sunny
90°53°4%⌄
Wind11 mph SW
Gusts21 mph
UV index8 – Very high
Precip chance4%
Sunrise06:39
Sunset19:35
Friday 4/9 Mostly cloudy
82°57°11%⌄
Wind9 mph SW
Gusts19 mph
UV index6 – High
Precip chance11%
Sunrise06:40
Sunset19:33
Saturday 5/9 Sunny
86°54°2%⌄
Wind11 mph SW
Gusts16 mph
UV index7 – High
Precip chance2%
Sunrise06:41
Sunset19:32
Sunday 6/9 Sunny
91°62°1%⌄
Wind12 mph SW
Gusts20 mph
UV index8 – Very high
Precip chance1%
Sunrise06:42
Sunset19:30
Monday 7/9 Sunny
90°63°1%⌄
Wind14 mph SW
Gusts21 mph
UV index8 – Very high
Precip chance1%
Sunrise06:43
Sunset19:29
Tuesday 8/9 Sunny
94°59°1%⌄
Wind14 mph SW
Gusts22 mph
UV index8 – Very high
Precip chance1%
Sunrise06:43
Sunset19:27
Wednesday 9/9 Light rain (climatological)
82°53°0.9 mm⌄
Day≈77–88°
Night≈47–58°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
85°54°20%⌄
Day≈80–90°
Night≈49–60°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
87°56°20%⌄
Day≈82–92°
Night≈50–61°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Light rain (climatological)
84°54°1.2 mm⌄
Day≈78–89°
Night≈48–59°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
77°50°20%⌄
Day≈72–83°
Night≈44–55°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
76°49°20%⌄
Day≈71–82°
Night≈44–54°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Light rain (climatological)
80°51°1.6 mm⌄
Day≈74–85°
Night≈46–57°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
79°51°20%⌄
Day≈74–85°
Night≈46–56°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
83°53°20%⌄
Day≈78–89°
Night≈48–59°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Light rain (climatological)
85°54°1.1 mm⌄
Day≈79–90°
Night≈49–60°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
84°54°20%⌄
Day≈78–89°
Night≈48–59°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
81°52°20%⌄
Day≈76–86°
Night≈47–57°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Light rain (climatological)
77°50°2.0 mm⌄
Day≈72–83°
Night≈44–55°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
76°49°20%⌄
Day≈70–81°
Night≈43–54°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
83°53°20%⌄
Day≈78–89°
Night≈48–59°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Light rain (climatological)
87°55°1.4 mm⌄
Day≈81–92°
Night≈50–61°
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.