Forest City · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Forest 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
36°
Sat, Sep 5
Coldest night
17°
Tue, Sep 8
Days with precip
7 / 14
of 14 forecast days
Nicest day
Mon, Aug 31
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
36° 20°
80% precip chance
Sat 12 – Sun 13 Sep
32° 20°
82% precip chance
Sat 19 – Sun 20 Sep
25° 16°
typical range
Sat 26 – Sun 27 Sep
24° 16°
typical range
30 days — Forest City
14 forecast + 16 climatology
Mon · Today Sunny
34°20°4%⌄
Wind4 mph SE
Gusts13 mph
UV index9 – Very high
Precip chance4%
Sunrise06:59
Sunset19:56
Tue · Tomorrow Sunny
35°23°5%⌄
Wind6 mph SE
Gusts14 mph
UV index9 – Very high
Precip chance5%
Sunrise06:59
Sunset19:54
Wednesday 2/9 Sunny
35°24°0.1 mm⌄
Wind7 mph S
Gusts19 mph
UV index9 – Very high
Precip chance17%
Sunrise07:00
Sunset19:53
Thursday 3/9 Sunny
36°23°2.6 mm⌄
Wind6 mph NW
Gusts13 mph
UV index9 – Very high
Precip chance57%
Sunrise07:01
Sunset19:52
Friday 4/9 Sunny
35°24°0.3 mm⌄
Wind10 mph SW
Gusts19 mph
UV index9 – Very high
Precip chance36%
Sunrise07:02
Sunset19:50
Saturday 5/9 Sunny
36°23°0.2 mm⌄
Wind5 mph W
Gusts8 mph
UV index9 – Very high
Precip chance17%
Sunrise07:02
Sunset19:49
Sunday 6/9 Showers
27°20°5.1 mm⌄
Wind9 mph E
Gusts18 mph
UV index6 – High
Precip chance80%
Sunrise07:03
Sunset19:47
Monday 7/9 Mostly cloudy
23°19°39.8 mm⌄
Wind8 mph NE
Gusts17 mph
UV index5 – Moderate
Precip chance90%
Sunrise07:04
Sunset19:46
Tuesday 8/9 Showers
19°17°13.1 mm⌄
Wind9 mph NE
Gusts17 mph
UV index4 – Moderate
Precip chance94%
Sunrise07:05
Sunset19:45
Wednesday 9/9 Showers
20°17°7.5 mm⌄
Wind7 mph NE
Gusts12 mph
UV index5 – Moderate
Precip chance93%
Sunrise07:05
Sunset19:43
Thursday 10/9 Fog
28°19°4.7 mm⌄
Wind4 mph N
Gusts10 mph
UV index7 – High
Precip chance85%
Sunrise07:06
Sunset19:42
Friday 11/9 Sunny
31°21°0.1 mm⌄
Wind4 mph SW
Gusts6 mph
UV index8 – Very high
Precip chance22%
Sunrise07:07
Sunset19:40
Saturday 12/9 Mostly cloudy
32°24°0.4 mm⌄
Wind5 mph E
Gusts7 mph
UV index8 – Very high
Precip chance36%
Sunrise07:08
Sunset19:39
Sunday 13/9 Showers
27°20°5.3 mm⌄
Wind13 mph NE
Gusts23 mph
UV index6 – High
Precip chance82%
Sunrise07:08
Sunset19:37
Monday 14/9 Rain (climatological)
26°18°14.3 mm⌄
Day≈23–29°
Night≈15–21°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
29°20°20%⌄
Day≈26–32°
Night≈17–23°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
30°21°20%⌄
Day≈27–33°
Night≈18–24°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
27°19°17.2 mm⌄
Day≈24–30°
Night≈16–22°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
27°19°20%⌄
Day≈24–30°
Night≈16–22°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
23°16°20%⌄
Day≈20–26°
Night≈13–19°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
25°17°17.8 mm⌄
Day≈22–28°
Night≈14–20°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
26°18°20%⌄
Day≈23–29°
Night≈15–21°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
28°19°20%⌄
Day≈25–31°
Night≈16–22°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
29°20°16.6 mm⌄
Day≈26–32°
Night≈17–23°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
27°18°20%⌄
Day≈24–30°
Night≈15–21°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
25°17°20%⌄
Day≈22–28°
Night≈14–20°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
23°16°15.5 mm⌄
Day≈20–26°
Night≈13–19°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
24°17°20%⌄
Day≈21–27°
Night≈14–20°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
26°18°20%⌄
Day≈23–29°
Night≈15–21°
Precip≈6.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Rain (climatological)
30°20°17.8 mm⌄
Day≈27–33°
Night≈17–23°
Precip≈6.8 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 Forest 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.