Union Park · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Union 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
98°
Wed, Sep 2
Coldest night
75°
Sun, Aug 23
Days with precip
12 / 14
of 14 forecast days
Nicest day
Wed, Sep 2
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
97° 76°
76% precip chance
Sat 5 – Sun 6 Sep
93° 76°
typical range
Sat 12 – Sun 13 Sep
91° 73°
typical range
Sat 19 – Sun 20 Sep
92° 73°
typical range
30 days — Union Park
14 forecast + 16 climatology
Sun · Today Showers
95°75°4.3 mm⌄
Wind10 mph W
Gusts20 mph
UV index7 – High
Precip chance73%
Sunrise06:58
Sunset19:56
Mon · Tomorrow Sunny
96°77°1.3 mm⌄
Wind13 mph SE
Gusts25 mph
UV index10 – Very high
Precip chance57%
Sunrise06:59
Sunset19:55
Tuesday 25/8 Sunny
95°75°4.5 mm⌄
Wind13 mph SE
Gusts24 mph
UV index10 – Very high
Precip chance64%
Sunrise06:59
Sunset19:54
Wednesday 26/8 Sunny
97°77°3.3 mm⌄
Wind9 mph SE
Gusts15 mph
UV index11 – Very high
Precip chance58%
Sunrise07:00
Sunset19:53
Thursday 27/8 Mostly cloudy
94°77°0.4 mm⌄
Wind9 mph S
Gusts16 mph
UV index8 – Very high
Precip chance36%
Sunrise07:00
Sunset19:52
Friday 28/8 Showers
95°76°2.3 mm⌄
Wind11 mph NW
Gusts18 mph
UV index8 – Very high
Precip chance58%
Sunrise07:01
Sunset19:51
Saturday 29/8 Mostly cloudy
96°76°1.1 mm⌄
Wind11 mph SE
Gusts17 mph
UV index9 – Very high
Precip chance57%
Sunrise07:01
Sunset19:50
Sunday 30/8 Showers
97°78°12.3 mm⌄
Wind12 mph SE
Gusts19 mph
UV index9 – Very high
Precip chance76%
Sunrise07:02
Sunset19:49
Monday 31/8 Partly cloudy
94°77°3.5 mm⌄
Wind7 mph E
Gusts15 mph
UV index8 – Very high
Precip chance63%
Sunrise07:02
Sunset19:48
Tuesday 1/9 Mostly cloudy
88°77°3.1 mm⌄
Wind6 mph S
Gusts14 mph
UV index8 – Very high
Precip chance68%
Sunrise07:03
Sunset19:46
Wednesday 2/9 Sunny
98°78°6%⌄
Wind9 mph SE
Gusts15 mph
UV index8 – Very high
Precip chance6%
Sunrise07:03
Sunset19:45
Thursday 3/9 Mostly cloudy
93°75°82.8 mm⌄
Wind16 mph NE
Gusts26 mph
UV index8 – Very high
Precip chance80%
Sunrise07:04
Sunset19:44
Friday 4/9 Sunny
92°76°9.1 mm⌄
Wind9 mph NE
Gusts15 mph
UV index8 – Very high
Precip chance68%
Sunrise07:04
Sunset19:43
Saturday 5/9 Showers
89°77°1.6 mm⌄
Wind10 mph E
Gusts16 mph
UV index7 – High
Precip chance57%
Sunrise07:05
Sunset19:42
Sunday 6/9 Rain (climatological)
93°76°20.6 mm⌄
Day≈88–98°
Night≈70–81°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
97°78°20%⌄
Day≈92–102°
Night≈73–83°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
98°78°20%⌄
Day≈92–103°
Night≈73–84°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Rain (climatological)
90°74°32.8 mm⌄
Day≈85–96°
Night≈69–79°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
88°73°20%⌄
Day≈83–94°
Night≈67–78°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
87°72°20%⌄
Day≈81–92°
Night≈66–77°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
89°73°21.5 mm⌄
Day≈83–94°
Night≈67–78°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
91°74°20%⌄
Day≈85–96°
Night≈69–80°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
97°78°20%⌄
Day≈91–102°
Night≈72–83°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
96°77°36.5 mm⌄
Day≈90–101°
Night≈72–82°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
93°75°20%⌄
Day≈87–98°
Night≈70–81°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
88°73°20%⌄
Day≈83–94°
Night≈67–78°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
86°71°18.7 mm⌄
Day≈81–92°
Night≈66–77°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
89°73°20%⌄
Day≈83–94°
Night≈67–78°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
92°75°20%⌄
Day≈87–97°
Night≈69–80°
Precip≈11.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
94°76°25.3 mm⌄
Day≈89–99°
Night≈71–81°
Precip≈11.1 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 Union 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.