McCormick · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
McCormick & 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
38°
Tue, Sep 1
Coldest night
17°
Mon, Sep 7
Days with precip
6 / 14
of 14 forecast days
Nicest day
Sun, Sep 6
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
33° 21°
76% precip chance
Sat 5 – Sun 6 Sep
34° 19°
57% precip chance
Sat 12 – Sun 13 Sep
29° 17°
typical range
Sat 19 – Sun 20 Sep
27° 17°
typical range
30 days — McCormick
14 forecast + 16 climatology
Tue · Today Sunny
36°19°3%⌄
Wind6 mph NE
Gusts17 mph
UV index9 – Very high
Precip chance3%
Sunrise06:58
Sunset20:04
Wed · Tomorrow Sunny
35°22°3.0 mm⌄
Wind9 mph SE
Gusts20 mph
UV index9 – Very high
Precip chance57%
Sunrise06:58
Sunset20:03
Thursday 27/8 Mostly cloudy
29°22°1.0 mm⌄
Wind7 mph W
Gusts11 mph
UV index7 – High
Precip chance64%
Sunrise06:59
Sunset20:01
Friday 28/8 Mostly cloudy
33°22°0.1 mm⌄
Wind8 mph SW
Gusts10 mph
UV index7 – High
Precip chance19%
Sunrise07:00
Sunset20:00
Saturday 29/8 Mostly cloudy
32°21°3.6 mm⌄
Wind5 mph NE
Gusts11 mph
UV index7 – High
Precip chance76%
Sunrise07:00
Sunset19:59
Sunday 30/8 Mostly cloudy
33°22°1.9 mm⌄
Wind5 mph SE
Gusts16 mph
UV index7 – High
Precip chance67%
Sunrise07:01
Sunset19:58
Monday 31/8 Mostly cloudy
34°23°14%⌄
Wind4 mph SW
Gusts8 mph
UV index8 – Very high
Precip chance14%
Sunrise07:02
Sunset19:56
Tuesday 1/9 Sunny
38°25°3%⌄
Wind11 mph W
Gusts18 mph
UV index9 – Very high
Precip chance3%
Sunrise07:02
Sunset19:55
Wednesday 2/9 Sunny
36°25°4%⌄
Wind11 mph NW
Gusts24 mph
UV index9 – Very high
Precip chance4%
Sunrise07:03
Sunset19:54
Thursday 3/9 Mostly cloudy
34°20°5%⌄
Wind12 mph W
Gusts19 mph
UV index7 – High
Precip chance5%
Sunrise07:04
Sunset19:52
Friday 4/9 Showers
24°20°1.7 mm⌄
Wind6 mph SW
Gusts19 mph
UV index5 – Moderate
Precip chance57%
Sunrise07:05
Sunset19:51
Saturday 5/9 Sunny
34°21°1.3 mm⌄
Wind11 mph NW
Gusts24 mph
UV index8 – Very high
Precip chance57%
Sunrise07:05
Sunset19:50
Sunday 6/9 Sunny
29°19°2%⌄
Wind9 mph NE
Gusts26 mph
UV index7 – High
Precip chance2%
Sunrise07:06
Sunset19:48
Monday 7/9 Mostly cloudy
29°17°8%⌄
Wind9 mph W
Gusts25 mph
UV index7 – High
Precip chance8%
Sunrise07:07
Sunset19:47
Tuesday 8/9 Light rain (climatological)
30°19°2.0 mm⌄
Day≈27–33°
Night≈16–22°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
31°20°20%⌄
Day≈28–34°
Night≈17–23°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
33°21°20%⌄
Day≈30–36°
Night≈18–24°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
31°19°2.9 mm⌄
Day≈28–34°
Night≈16–22°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
29°18°20%⌄
Day≈26–32°
Night≈15–21°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
27°17°20%⌄
Day≈24–30°
Night≈14–20°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Light rain (climatological)
28°18°1.5 mm⌄
Day≈25–31°
Night≈15–21°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
31°20°20%⌄
Day≈28–34°
Night≈17–23°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
32°20°20%⌄
Day≈29–35°
Night≈17–23°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
32°20°2.1 mm⌄
Day≈29–35°
Night≈17–23°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
29°19°20%⌄
Day≈26–32°
Night≈16–22°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
27°18°20%⌄
Day≈24–30°
Night≈15–21°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Light rain (climatological)
27°17°1.8 mm⌄
Day≈24–30°
Night≈14–20°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
26°17°20%⌄
Day≈23–29°
Night≈14–20°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
30°19°20%⌄
Day≈27–33°
Night≈16–22°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
31°20°3.1 mm⌄
Day≈28–34°
Night≈17–23°
Precip≈1.1 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 McCormick, 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.