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
78°
Thu, Sep 10
Coldest night
47°
Wed, Sep 9
Days with precip
2 / 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
74° 49°
15% precip chance
Sat 12 – Sun 13 Sep
69° 51°
22% precip chance
Sat 19 – Sun 20 Sep
55° 38°
typical range
Sat 26 – Sun 27 Sep
58° 40°
typical range
30 days — Fairfield
14 forecast + 16 climatology
Mon · Today Mostly cloudy
76°53°10%⌄
Wind4 mph W
Gusts16 mph
UV index5 – Moderate
Precip chance10%
Sunrise06:24
Sunset19:54
Tue · Tomorrow Sunny
74°52°9%⌄
Wind6 mph W
Gusts13 mph
UV index5 – Moderate
Precip chance9%
Sunrise06:25
Sunset19:52
Wednesday 2/9 Showers
74°53°0.6 mm⌄
Wind5 mph SW
Gusts14 mph
UV index4 – Moderate
Precip chance42%
Sunrise06:27
Sunset19:50
Thursday 3/9 Mostly cloudy
70°52°1.8 mm⌄
Wind5 mph NW
Gusts14 mph
UV index3 – Low
Precip chance70%
Sunrise06:28
Sunset19:48
Friday 4/9 Showers
65°50°1.1 mm⌄
Wind8 mph SW
Gusts13 mph
UV index5 – Moderate
Precip chance64%
Sunrise06:30
Sunset19:46
Saturday 5/9 Sunny
71°49°15%⌄
Wind4 mph W
Gusts14 mph
UV index6 – High
Precip chance15%
Sunrise06:31
Sunset19:44
Sunday 6/9 Sunny
74°51°11%⌄
Wind6 mph W
Gusts15 mph
UV index6 – High
Precip chance11%
Sunrise06:33
Sunset19:42
Monday 7/9 Mostly cloudy
76°54°9%⌄
Wind7 mph SW
Gusts14 mph
UV index6 – High
Precip chance9%
Sunrise06:34
Sunset19:39
Tuesday 8/9 Mostly cloudy
64°50°15%⌄
Wind4 mph SW
Gusts14 mph
UV index5 – Moderate
Precip chance15%
Sunrise06:35
Sunset19:37
Wednesday 9/9 Sunny
66°47°10%⌄
Wind7 mph W
Gusts14 mph
UV index5 – Moderate
Precip chance10%
Sunrise06:37
Sunset19:35
Thursday 10/9 Sunny
78°47°3%⌄
Wind7 mph N
Gusts15 mph
UV index7 – High
Precip chance3%
Sunrise06:38
Sunset19:33
Friday 11/9 Mostly cloudy
72°51°7%⌄
Wind5 mph W
Gusts13 mph
UV index5 – Moderate
Precip chance7%
Sunrise06:40
Sunset19:31
Saturday 12/9 Mostly cloudy
61°51°22%⌄
Wind4 mph SE
Gusts8 mph
UV index4 – Moderate
Precip chance22%
Sunrise06:41
Sunset19:29
Sunday 13/9 Mostly cloudy
69°51°17%⌄
Wind6 mph W
Gusts17 mph
UV index5 – Moderate
Precip chance17%
Sunrise06:43
Sunset19:27
Monday 14/9 Light rain (climatological)
60°41°1.5 mm⌄
Day≈55–66°
Night≈36–47°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
64°43°20%⌄
Day≈58–69°
Night≈38–49°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
65°44°20%⌄
Day≈60–71°
Night≈39–50°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Light rain (climatological)
62°42°1.8 mm⌄
Day≈57–67°
Night≈37–48°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
60°41°20%⌄
Day≈55–65°
Night≈36–47°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
55°38°20%⌄
Day≈49–60°
Night≈33–43°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Light rain (climatological)
55°38°0.8 mm⌄
Day≈50–60°
Night≈33–44°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
63°43°20%⌄
Day≈57–68°
Night≈37–48°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
64°44°20%⌄
Day≈58–69°
Night≈38–49°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Light rain (climatological)
63°43°2.0 mm⌄
Day≈58–69°
Night≈38–49°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
62°42°20%⌄
Day≈57–67°
Night≈37–48°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
58°40°20%⌄
Day≈52–63°
Night≈34–45°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Light rain (climatological)
58°40°1.4 mm⌄
Day≈53–64°
Night≈35–46°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
58°40°20%⌄
Day≈52–63°
Night≈35–45°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
58°40°20%⌄
Day≈52–63°
Night≈35–45°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Light rain (climatological)
66°45°0.9 mm⌄
Day≈61–71°
Night≈39–50°
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.