Humber Summit · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Humber Summit & 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
79°
Wed, Aug 26
Coldest night
53°
Mon, Aug 24
Days with precip
5 / 14
of 14 forecast days
Nicest day
Sat, Aug 29
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
75° 55°
36% precip chance
Sat 5 – Sun 6 Sep
76° 59°
91% precip chance
Sat 12 – Sun 13 Sep
60° 49°
typical range
Sat 19 – Sun 20 Sep
64° 49°
typical range
30 days — Humber Summit
14 forecast + 16 climatology
Mon · Today Drizzle
67°53°2.6 mm⌄
Wind13 mph SW
Gusts24 mph
UV index5 – Moderate
Precip chance78%
Sunrise06:33
Sunset20:08
Tue · Tomorrow Showers
71°58°0.5 mm⌄
Wind11 mph NW
Gusts21 mph
UV index7 – High
Precip chance40%
Sunrise06:34
Sunset20:06
Wednesday 26/8 Mostly cloudy
79°60°8%⌄
Wind11 mph SE
Gusts19 mph
UV index6 – High
Precip chance8%
Sunrise06:35
Sunset20:05
Thursday 27/8 Sunny
75°64°12.5 mm⌄
Wind10 mph S
Gusts23 mph
UV index7 – High
Precip chance82%
Sunrise06:36
Sunset20:03
Friday 28/8 Sunny
76°59°0.6 mm⌄
Wind10 mph NW
Gusts18 mph
UV index6 – High
Precip chance36%
Sunrise06:37
Sunset20:01
Saturday 29/8 Sunny
75°55°4%⌄
Wind6 mph S
Gusts14 mph
UV index6 – High
Precip chance4%
Sunrise06:38
Sunset19:59
Sunday 30/8 Mostly cloudy
73°59°0.4 mm⌄
Wind6 mph S
Gusts13 mph
UV index5 – Moderate
Precip chance36%
Sunrise06:39
Sunset19:58
Monday 31/8 Mostly cloudy
78°62°0.4 mm⌄
Wind6 mph N
Gusts16 mph
UV index6 – High
Precip chance39%
Sunrise06:40
Sunset19:56
Tuesday 1/9 Mostly cloudy
79°62°7%⌄
Wind6 mph N
Gusts15 mph
UV index7 – High
Precip chance7%
Sunrise06:42
Sunset19:54
Wednesday 2/9 Mostly cloudy
68°62°2.4 mm⌄
Wind7 mph SE
Gusts13 mph
UV index4 – Moderate
Precip chance75%
Sunrise06:43
Sunset19:52
Thursday 3/9 Mostly cloudy
75°62°2.2 mm⌄
Wind9 mph N
Gusts22 mph
UV index6 – High
Precip chance70%
Sunrise06:44
Sunset19:51
Friday 4/9 Mostly cloudy
74°59°11%⌄
Wind8 mph N
Gusts20 mph
UV index6 – High
Precip chance11%
Sunrise06:45
Sunset19:49
Saturday 5/9 Showers
65°59°29.1 mm⌄
Wind13 mph E
Gusts26 mph
UV index4 – Moderate
Precip chance91%
Sunrise06:46
Sunset19:47
Sunday 6/9 Fog
76°61°0.3 mm⌄
Wind11 mph E
Gusts23 mph
UV index6 – High
Precip chance48%
Sunrise06:47
Sunset19:45
Monday 7/9 Rain (climatological)
68°54°8.5 mm⌄
Day≈63–73°
Night≈48–59°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
67°53°20%⌄
Day≈61–72°
Night≈47–58°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
69°54°20%⌄
Day≈64–74°
Night≈49–60°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Rain (climatological)
66°52°7.8 mm⌄
Day≈61–71°
Night≈47–58°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
64°51°20%⌄
Day≈58–69°
Night≈46–56°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
60°49°20%⌄
Day≈54–65°
Night≈43–54°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
60°49°8.1 mm⌄
Day≈55–65°
Night≈43–54°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
63°51°20%⌄
Day≈58–69°
Night≈45–56°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
68°53°20%⌄
Day≈62–73°
Night≈48–59°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
72°56°9.6 mm⌄
Day≈67–77°
Night≈51–61°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
66°53°20%⌄
Day≈61–72°
Night≈47–58°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
65°52°20%⌄
Day≈60–71°
Night≈46–57°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
61°49°13.0 mm⌄
Day≈55–66°
Night≈44–55°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
64°51°20%⌄
Day≈58–69°
Night≈46–56°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
63°50°20%⌄
Day≈57–68°
Night≈45–56°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
69°55°7.8 mm⌄
Day≈64–75°
Night≈49–60°
Precip≈4.4 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 Humber Summit, 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.