Historic Downtown · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Historic Downtown & 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
76°
Tue, Sep 15
Coldest night
47°
Fri, Sep 4
Days with precip
3 / 14
of 14 forecast days
Nicest day
Sun, Sep 13
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
74° 47°
64% precip chance
Sat 12 – Sun 13 Sep
69° 51°
16% precip chance
Sat 19 – Sun 20 Sep
73° 50°
typical range
Sat 26 – Sun 27 Sep
71° 49°
typical range
30 days — Historic Downtown
14 forecast + 16 climatology
Wed · Today Mostly cloudy
72°56°7.7 mm⌄
Wind8 mph SW
Gusts14 mph
UV index3 – Moderate
Precip chance72%
Sunrise06:27
Sunset19:50
Thu · Tomorrow Sunny
65°48°10.0 mm⌄
Wind3 mph NW
Gusts14 mph
UV index4 – Moderate
Precip chance76%
Sunrise06:28
Sunset19:48
Friday 4/9 Sunny
67°47°13%⌄
Wind8 mph SW
Gusts15 mph
UV index4 – Moderate
Precip chance13%
Sunrise06:30
Sunset19:46
Saturday 5/9 Showers
57°51°0.8 mm⌄
Wind4 mph E
Gusts12 mph
UV index3 – Low
Precip chance64%
Sunrise06:31
Sunset19:44
Sunday 6/9 Sunny
74°47°7%⌄
Wind5 mph NE
Gusts15 mph
UV index5 – Moderate
Precip chance7%
Sunrise06:33
Sunset19:42
Monday 7/9 Sunny
74°50°4%⌄
Wind6 mph W
Gusts13 mph
UV index6 – High
Precip chance4%
Sunrise06:34
Sunset19:39
Tuesday 8/9 Mostly cloudy
72°52°12%⌄
Wind5 mph W
Gusts17 mph
UV index5 – Moderate
Precip chance12%
Sunrise06:35
Sunset19:37
Wednesday 9/9 Mostly cloudy
75°53°9%⌄
Wind6 mph W
Gusts17 mph
UV index6 – High
Precip chance9%
Sunrise06:37
Sunset19:35
Thursday 10/9 Mostly cloudy
74°53°10%⌄
Wind6 mph W
Gusts13 mph
UV index6 – High
Precip chance10%
Sunrise06:38
Sunset19:33
Friday 11/9 Mostly cloudy
70°52°13%⌄
Wind8 mph SW
Gusts13 mph
UV index6 – High
Precip chance13%
Sunrise06:40
Sunset19:31
Saturday 12/9 Mostly cloudy
67°51°14%⌄
Wind7 mph SW
Gusts14 mph
UV index4 – Moderate
Precip chance14%
Sunrise06:41
Sunset19:29
Sunday 13/9 Mostly cloudy
69°55°16%⌄
Wind3 mph W
Gusts14 mph
UV index5 – Moderate
Precip chance16%
Sunrise06:43
Sunset19:27
Monday 14/9 Mostly cloudy
73°55°0.6 mm⌄
Wind6 mph W
Gusts15 mph
UV index6 – High
Precip chance41%
Sunrise06:44
Sunset19:25
Tuesday 15/9 Mostly cloudy
76°53°8%⌄
Wind5 mph W
Gusts14 mph
UV index6 – High
Precip chance8%
Sunrise06:45
Sunset19:22
Wednesday 16/9 Rain (climatological)
72°53°2.2 mm⌄
Day≈67–78°
Night≈47–58°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
74°54°20%⌄
Day≈69–79°
Night≈48–59°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
76°55°20%⌄
Day≈71–82°
Night≈50–60°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
73°53°5.3 mm⌄
Day≈67–78°
Night≈47–58°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
69°50°20%⌄
Day≈63–74°
Night≈45–56°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
68°50°20%⌄
Day≈62–73°
Night≈44–55°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
67°50°3.7 mm⌄
Day≈62–73°
Night≈44–55°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
71°52°20%⌄
Day≈65–76°
Night≈46–57°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
77°55°20%⌄
Day≈71–82°
Night≈50–61°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
76°55°2.3 mm⌄
Day≈71–82°
Night≈50–60°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
71°52°20%⌄
Day≈65–76°
Night≈46–57°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
66°49°20%⌄
Day≈61–71°
Night≈44–54°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Rain (climatological)
67°49°2.9 mm⌄
Day≈62–72°
Night≈44–55°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
64°48°20%⌄
Day≈59–70°
Night≈43–53°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
69°51°20%⌄
Day≈63–74°
Night≈45–56°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Rain (climatological)
59°39°2.9 mm⌄
Day≈53–64°
Night≈34–44°
Precip≈1.6 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 Historic Downtown, 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.