Portage Park · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Portage Park & 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
100°
Thu, Sep 3
Coldest night
55°
Wed, Sep 16
Days with precip
4 / 14
of 14 forecast days
Nicest day
Wed, Sep 16
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
80° 68°
76% precip chance
Sat 12 – Sun 13 Sep
95° 65°
36% precip chance
Sat 19 – Sun 20 Sep
85° 70°
typical range
Sat 26 – Sun 27 Sep
88° 69°
typical range
30 days — Portage Park
14 forecast + 16 climatology
Thu · Today Sunny
100°77°6%⌄
Wind9 mph SW
Gusts29 mph
UV index5 – Moderate
Precip chance6%
Sunrise06:19
Sunset19:22
Fri · Tomorrow Mostly cloudy
93°73°4.2 mm⌄
Wind14 mph E
Gusts34 mph
UV index5 – Moderate
Precip chance65%
Sunrise06:20
Sunset19:20
Saturday 5/9 Sunny
80°70°14.2 mm⌄
Wind11 mph NE
Gusts19 mph
UV index7 – High
Precip chance76%
Sunrise06:21
Sunset19:18
Sunday 6/9 Sunny
75°68°0.2 mm⌄
Wind9 mph E
Gusts18 mph
UV index7 – High
Precip chance17%
Sunrise06:22
Sunset19:16
Monday 7/9 Sunny
75°65°7%⌄
Wind9 mph E
Gusts15 mph
UV index6 – High
Precip chance7%
Sunrise06:23
Sunset19:15
Tuesday 8/9 Mostly cloudy
83°65°8%⌄
Wind12 mph S
Gusts32 mph
UV index7 – High
Precip chance8%
Sunrise06:24
Sunset19:13
Wednesday 9/9 Sunny
89°77°4%⌄
Wind16 mph SW
Gusts34 mph
UV index8 – Very high
Precip chance4%
Sunrise06:25
Sunset19:11
Thursday 10/9 Mostly cloudy
82°72°0.9 mm⌄
Wind8 mph NE
Gusts16 mph
UV index7 – High
Precip chance41%
Sunrise06:26
Sunset19:10
Friday 11/9 Sunny
76°66°17%⌄
Wind13 mph E
Gusts24 mph
UV index6 – High
Precip chance17%
Sunrise06:27
Sunset19:08
Saturday 12/9 Sunny
89°65°3%⌄
Wind12 mph E
Gusts23 mph
UV index8 – Very high
Precip chance3%
Sunrise06:28
Sunset19:06
Sunday 13/9 Sunny
95°76°0.3 mm⌄
Wind13 mph SW
Gusts31 mph
UV index9 – Very high
Precip chance36%
Sunrise06:29
Sunset19:04
Monday 14/9 Showers
85°68°1.7 mm⌄
Wind11 mph SW
Gusts30 mph
UV index6 – High
Precip chance60%
Sunrise06:30
Sunset19:03
Tuesday 15/9 Sunny
72°60°3.2 mm⌄
Wind16 mph W
Gusts31 mph
UV index6 – High
Precip chance57%
Sunrise06:31
Sunset19:01
Wednesday 16/9 Sunny
65°55°4%⌄
Wind10 mph NW
Gusts21 mph
UV index5 – Moderate
Precip chance4%
Sunrise06:32
Sunset18:59
Thursday 17/9 Rain (climatological)
85°69°5.9 mm⌄
Day≈79–90°
Night≈64–75°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
89°72°20%⌄
Day≈84–94°
Night≈67–78°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
85°70°20%⌄
Day≈80–91°
Night≈65–75°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
85°70°5.8 mm⌄
Day≈80–91°
Night≈65–75°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
82°68°20%⌄
Day≈76–87°
Night≈62–73°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
77°65°20%⌄
Day≈71–82°
Night≈59–70°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
77°65°4.0 mm⌄
Day≈72–82°
Night≈60–70°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
83°68°20%⌄
Day≈77–88°
Night≈63–74°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
85°70°20%⌄
Day≈80–91°
Night≈65–75°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
88°72°7.2 mm⌄
Day≈83–94°
Night≈66–77°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
85°69°20%⌄
Day≈79–90°
Night≈64–75°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
81°67°20%⌄
Day≈75–86°
Night≈62–73°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Rain (climatological)
76°64°2.9 mm⌄
Day≈70–81°
Night≈59–69°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
79°66°20%⌄
Day≈74–84°
Night≈61–72°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Partly cloudy (climatological)
73°58°20%⌄
Day≈67–78°
Night≈53–64°
Precip≈2.1 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 2/10 Rain (climatological)
71°57°5.0 mm⌄
Day≈66–76°
Night≈52–62°
Precip≈2.1 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 Portage Park, 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.