Hamilton Square · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Hamilton Square & 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
96°
Fri, Sep 11
Coldest night
53°
Wed, Sep 9
Days with precip
6 / 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
84° 57°
36% precip chance
Sat 12 – Sun 13 Sep
77° 58°
8% precip chance
Sat 19 – Sun 20 Sep
80° 59°
typical range
Sat 26 – Sun 27 Sep
84° 59°
typical range
30 days — Hamilton Square
14 forecast + 16 climatology
Wed · Today Heavy rain
78°69°163.3 mm⌄
Wind10 mph E
Gusts17 mph
UV index4 – Moderate
Precip chance89%
Sunrise06:27
Sunset19:29
Thu · Tomorrow Mostly cloudy
86°68°9.6 mm⌄
Wind10 mph W
Gusts25 mph
UV index7 – High
Precip chance88%
Sunrise06:28
Sunset19:27
Friday 4/9 Showers
89°71°9.3 mm⌄
Wind10 mph NW
Gusts19 mph
UV index7 – High
Precip chance82%
Sunrise06:29
Sunset19:26
Saturday 5/9 Sunny
84°65°0.6 mm⌄
Wind11 mph N
Gusts27 mph
UV index7 – High
Precip chance36%
Sunrise06:30
Sunset19:24
Sunday 6/9 Sunny
75°57°0.4 mm⌄
Wind10 mph E
Gusts19 mph
UV index6 – High
Precip chance36%
Sunrise06:31
Sunset19:22
Monday 7/9 Sunny
81°60°5%⌄
Wind8 mph S
Gusts22 mph
UV index7 – High
Precip chance5%
Sunrise06:32
Sunset19:21
Tuesday 8/9 Mostly cloudy
78°57°37.4 mm⌄
Wind14 mph NE
Gusts35 mph
UV index6 – High
Precip chance89%
Sunrise06:32
Sunset19:19
Wednesday 9/9 Sunny
70°53°0.9 mm⌄
Wind13 mph N
Gusts32 mph
UV index6 – High
Precip chance37%
Sunrise06:33
Sunset19:18
Thursday 10/9 Sunny
74°56°10%⌄
Wind11 mph S
Gusts33 mph
UV index6 – High
Precip chance10%
Sunrise06:34
Sunset19:16
Friday 11/9 Sunny
96°68°1.5 mm⌄
Wind15 mph W
Gusts32 mph
UV index9 – Very high
Precip chance57%
Sunrise06:35
Sunset19:14
Saturday 12/9 Sunny
77°63°8%⌄
Wind11 mph NW
Gusts23 mph
UV index7 – High
Precip chance8%
Sunrise06:36
Sunset19:13
Sunday 13/9 Sunny
76°58°7%⌄
Wind8 mph SE
Gusts20 mph
UV index6 – High
Precip chance7%
Sunrise06:37
Sunset19:11
Monday 14/9 Mostly cloudy
82°65°6.0 mm⌄
Wind13 mph SW
Gusts25 mph
UV index6 – High
Precip chance82%
Sunrise06:38
Sunset19:09
Tuesday 15/9 Mostly cloudy
72°56°0.3 mm⌄
Wind12 mph N
Gusts28 mph
UV index6 – High
Precip chance36%
Sunrise06:39
Sunset19:08
Wednesday 16/9 Rain (climatological)
78°61°17.0 mm⌄
Day≈73–84°
Night≈56–66°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
82°64°20%⌄
Day≈77–88°
Night≈58–69°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
81°63°20%⌄
Day≈76–87°
Night≈58–68°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
80°62°28.0 mm⌄
Day≈75–86°
Night≈57–68°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
75°59°20%⌄
Day≈70–80°
Night≈54–64°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
75°59°20%⌄
Day≈70–80°
Night≈54–64°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
77°60°38.0 mm⌄
Day≈71–82°
Night≈55–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
82°63°20%⌄
Day≈76–87°
Night≈58–69°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
81°63°20%⌄
Day≈76–87°
Night≈57–68°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
86°65°17.0 mm⌄
Day≈80–91°
Night≈60–71°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
84°64°20%⌄
Day≈78–89°
Night≈59–70°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
75°59°20%⌄
Day≈70–81°
Night≈54–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Rain (climatological)
73°58°39.0 mm⌄
Day≈68–78°
Night≈53–63°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
78°61°20%⌄
Day≈73–84°
Night≈56–66°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
82°63°20%⌄
Day≈77–88°
Night≈58–69°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Rain (climatological)
71°53°37.0 mm⌄
Day≈66–77°
Night≈47–58°
Precip≈11.8 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 Hamilton Square, 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.