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
37°
Wed, Sep 9
Coldest night
16°
Mon, Sep 7
Days with precip
3 / 14
of 14 forecast days
Nicest day
Sun, Sep 6
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
28° 17°
68% precip chance
Sat 12 – Sun 13 Sep
37° 25°
57% precip chance
Sat 19 – Sun 20 Sep
35° 23°
typical range
Sat 26 – Sun 27 Sep
35° 23°
typical range
30 days — Fairfield
14 forecast + 16 climatology
Fri · Today Sunny
37°23°4%⌄
Wind11 mph W
Gusts18 mph
UV index8 – Very high
Precip chance4%
Sunrise07:09
Sunset20:04
Sat · Tomorrow Sunny
28°22°4.3 mm⌄
Wind11 mph NE
Gusts19 mph
UV index8 – High
Precip chance68%
Sunrise07:10
Sunset20:03
Sunday 6/9 Sunny
27°17°5%⌄
Wind11 mph NE
Gusts24 mph
UV index8 – High
Precip chance5%
Sunrise07:11
Sunset20:01
Monday 7/9 Mostly cloudy
28°16°11%⌄
Wind9 mph NE
Gusts26 mph
UV index7 – High
Precip chance11%
Sunrise07:12
Sunset20:00
Tuesday 8/9 Mostly cloudy
30°19°9%⌄
Wind6 mph E
Gusts22 mph
UV index7 – High
Precip chance9%
Sunrise07:13
Sunset19:58
Wednesday 9/9 Sunny
37°25°4%⌄
Wind10 mph SW
Gusts28 mph
UV index9 – Very high
Precip chance4%
Sunrise07:14
Sunset19:57
Thursday 10/9 Sunny
33°27°17%⌄
Wind12 mph SW
Gusts33 mph
UV index8 – Very high
Precip chance17%
Sunrise07:15
Sunset19:55
Friday 11/9 Sunny
36°23°1.7 mm⌄
Wind5 mph SE
Gusts13 mph
UV index9 – Very high
Precip chance57%
Sunrise07:15
Sunset19:53
Saturday 12/9 Sunny
37°25°1.6 mm⌄
Wind10 mph NW
Gusts13 mph
UV index9 – Very high
Precip chance57%
Sunrise07:16
Sunset19:52
Sunday 13/9 Sunny
36°25°3%⌄
Wind9 mph SW
Gusts26 mph
UV index9 – Very high
Precip chance3%
Sunrise07:17
Sunset19:50
Monday 14/9 Showers
30°21°0.9 mm⌄
Wind11 mph SW
Gusts32 mph
UV index7 – High
Precip chance46%
Sunrise07:18
Sunset19:48
Tuesday 15/9 Mostly cloudy
33°20°10%⌄
Wind7 mph SW
Gusts14 mph
UV index8 – Very high
Precip chance10%
Sunrise07:19
Sunset19:47
Wednesday 16/9 Sunny
35°24°10%⌄
Wind10 mph NE
Gusts20 mph
UV index8 – Very high
Precip chance10%
Sunrise07:20
Sunset19:45
Thursday 17/9 Sunny
35°24°0.3 mm⌄
Wind6 mph SE
Gusts17 mph
UV index9 – Very high
Precip chance36%
Sunrise07:21
Sunset19:44
Friday 18/9 Rain (climatological)
34°23°2.5 mm⌄
Day≈31–37°
Night≈20–26°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
35°23°20%⌄
Day≈32–38°
Night≈20–26°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
35°23°20%⌄
Day≈32–38°
Night≈20–26°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Light rain (climatological)
33°22°1.9 mm⌄
Day≈30–36°
Night≈19–25°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
33°22°20%⌄
Day≈30–36°
Night≈19–25°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
29°20°20%⌄
Day≈26–32°
Night≈17–23°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Light rain (climatological)
31°21°1.8 mm⌄
Day≈28–34°
Night≈18–24°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
33°22°20%⌄
Day≈30–36°
Night≈19–25°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
35°23°20%⌄
Day≈32–38°
Night≈20–26°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Light rain (climatological)
35°23°1.3 mm⌄
Day≈32–38°
Night≈20–26°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
34°23°20%⌄
Day≈31–37°
Night≈20–26°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
31°21°20%⌄
Day≈28–34°
Night≈18–24°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Light rain (climatological)
31°21°1.6 mm⌄
Day≈28–34°
Night≈18–24°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Partly cloudy (climatological)
26°16°20%⌄
Day≈23–29°
Night≈13–19°
Precip≈0.8 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 2/10 Partly cloudy (climatological)
28°17°20%⌄
Day≈25–31°
Night≈14–20°
Precip≈0.8 in / October
(climatological)Typical range for these dates · 1991–2020
Saturday 3/10 Light rain (climatological)
28°17°1.5 mm⌄
Day≈25–31°
Night≈14–20°
Precip≈0.8 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 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.