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°
Thu, Aug 20
Coldest night
19°
Sat, Aug 29
Days with precip
9 / 14
of 14 forecast days
Nicest day
Mon, Aug 31
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
35° 21°
76% precip chance
Sat 29 – Sun 30 Aug
33° 19°
70% precip chance
Sat 5 – Sun 6 Sep
31° 19°
typical range
Sat 12 – Sun 13 Sep
30° 18°
typical range
30 days — McCormick
14 forecast + 16 climatology
Wed · Today Sunny
38°23°4%⌄
Wind8 mph NE
Gusts20 mph
UV index9 – Very high
Precip chance4%
Sunrise06:53
Sunset20:11
Thu · Tomorrow Sunny
38°24°5%⌄
Wind14 mph NW
Gusts21 mph
UV index10 – Very high
Precip chance5%
Sunrise06:54
Sunset20:10
Friday 21/8 Sunny
33°22°4.3 mm⌄
Wind10 mph SE
Gusts28 mph
UV index8 – Very high
Precip chance64%
Sunrise06:55
Sunset20:09
Saturday 22/8 Showers
32°21°2.6 mm⌄
Wind9 mph S
Gusts25 mph
UV index9 – Very high
Precip chance76%
Sunrise06:55
Sunset20:08
Sunday 23/8 Sunny
35°21°0.5 mm⌄
Wind6 mph NW
Gusts13 mph
UV index9 – Very high
Precip chance36%
Sunrise06:56
Sunset20:06
Monday 24/8 Mostly cloudy
35°23°13%⌄
Wind5 mph W
Gusts9 mph
UV index7 – High
Precip chance13%
Sunrise06:57
Sunset20:05
Tuesday 25/8 Sunny
32°23°1.5 mm⌄
Wind6 mph SW
Gusts17 mph
UV index8 – Very high
Precip chance57%
Sunrise06:58
Sunset20:04
Wednesday 26/8 Thunderstorms
34°23°1.2 mm⌄
Wind11 mph SW
Gusts23 mph
UV index7 – High
Precip chance57%
Sunrise06:58
Sunset20:03
Thursday 27/8 Showers
32°20°2.6 mm⌄
Wind8 mph SW
Gusts21 mph
UV index8 – Very high
Precip chance70%
Sunrise06:59
Sunset20:01
Friday 28/8 Showers
31°20°8.7 mm⌄
Wind7 mph E
Gusts17 mph
UV index7 – High
Precip chance82%
Sunrise07:00
Sunset20:00
Saturday 29/8 Showers
31°19°2.3 mm⌄
Wind6 mph NE
Gusts14 mph
UV index8 – Very high
Precip chance70%
Sunrise07:00
Sunset19:59
Sunday 30/8 Partly cloudy
33°21°1.4 mm⌄
Wind7 mph W
Gusts10 mph
UV index8 – Very high
Precip chance57%
Sunrise07:01
Sunset19:58
Monday 31/8 Mostly cloudy
32°23°8%⌄
Wind6 mph NE
Gusts15 mph
UV index7 – High
Precip chance8%
Sunrise07:02
Sunset19:56
Tuesday 1/9 Mostly cloudy
27°22°2.6 mm⌄
Wind7 mph E
Gusts17 mph
UV index6 – High
Precip chance72%
Sunrise07:02
Sunset19:55
Wednesday 2/9 Rain (climatological)
30°19°4.2 mm⌄
Day≈27–33°
Night≈16–22°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 3/9 Partly cloudy (climatological)
32°20°20%⌄
Day≈29–35°
Night≈17–23°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Partly cloudy (climatological)
34°22°20%⌄
Day≈31–37°
Night≈19–25°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Rain (climatological)
31°20°6.2 mm⌄
Day≈28–34°
Night≈17–23°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
29°19°20%⌄
Day≈26–32°
Night≈16–22°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
27°18°20%⌄
Day≈24–30°
Night≈15–21°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Rain (climatological)
28°19°3.2 mm⌄
Day≈25–31°
Night≈16–22°
Precip≈2.4 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≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
32°21°20%⌄
Day≈29–35°
Night≈18–24°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
32°21°4.6 mm⌄
Day≈29–35°
Night≈18–24°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
30°19°20%⌄
Day≈27–33°
Night≈16–22°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
28°18°20%⌄
Day≈25–31°
Night≈15–21°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
27°18°3.8 mm⌄
Day≈24–30°
Night≈15–21°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
27°17°20%⌄
Day≈24–30°
Night≈14–20°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
30°19°20%⌄
Day≈27–33°
Night≈16–22°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
31°20°6.6 mm⌄
Day≈28–34°
Night≈17–23°
Precip≈2.4 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.