County Park · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
County 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
77°
Wed, Sep 2
Coldest night
49°
Sun, Sep 6
Days with precip
3 / 14
of 14 forecast days
Nicest day
Thu, Sep 3
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
74° 49°
17% precip chance
Sat 12 – Sun 13 Sep
71° 48°
typical range
Sat 19 – Sun 20 Sep
56° 44°
typical range
Sat 26 – Sun 27 Sep
57° 45°
typical range
30 days — County Park
14 forecast + 16 climatology
Sun · Today Fog
66°58°0.3 mm⌄
Wind11 mph E
Gusts15 mph
UV index4 – Moderate
Precip chance48%
Sunrise07:11
Sunset20:43
Mon · Tomorrow Showers
62°60°13.3 mm⌄
Wind13 mph E
Gusts25 mph
UV index1 – Low
Precip chance95%
Sunrise07:13
Sunset20:41
Tuesday 1/9 Mostly cloudy
65°60°0.5 mm⌄
Wind9 mph S
Gusts14 mph
UV index5 – Moderate
Precip chance63%
Sunrise07:14
Sunset20:39
Wednesday 2/9 Sunny
77°63°1.0 mm⌄
Wind9 mph S
Gusts15 mph
UV index5 – Moderate
Precip chance55%
Sunrise07:15
Sunset20:37
Thursday 3/9 Sunny
69°58°18%⌄
Wind9 mph SE
Gusts20 mph
UV index5 – Moderate
Precip chance18%
Sunrise07:17
Sunset20:35
Friday 4/9 Sunny
75°61°10%⌄
Wind9 mph NW
Gusts12 mph
UV index6 – High
Precip chance10%
Sunrise07:18
Sunset20:33
Saturday 5/9 Sunny
74°58°9%⌄
Wind22 mph NW
Gusts36 mph
UV index6 – High
Precip chance9%
Sunrise07:20
Sunset20:31
Sunday 6/9 Partly cloudy
58°49°17%⌄
Wind22 mph NW
Gusts35 mph
UV index4 – Moderate
Precip chance17%
Sunrise07:21
Sunset20:29
Monday 7/9 Mostly cloudy
60°52°1.6 mm⌄
Wind19 mph NW
Gusts30 mph
UV index4 – Moderate
Precip chance67%
Sunrise07:22
Sunset20:27
Tuesday 8/9 Mostly cloudy
59°51°0.8 mm⌄
Wind8 mph S
Gusts19 mph
UV index4 – Moderate
Precip chance57%
Sunrise07:24
Sunset20:24
Wednesday 9/9 Showers
59°55°0.6 mm⌄
Wind15 mph NW
Gusts25 mph
UV index3 – Moderate
Precip chance58%
Sunrise07:25
Sunset20:22
Thursday 10/9 Mostly cloudy
60°54°20%⌄
Wind8 mph N
Gusts17 mph
UV index5 – Moderate
Precip chance20%
Sunrise07:27
Sunset20:20
Friday 11/9 Mostly cloudy
63°57°17%⌄
Wind19 mph SE
Gusts36 mph
UV index4 – Moderate
Precip chance17%
Sunrise07:28
Sunset20:18
Saturday 12/9 Sunny
71°61°12%⌄
Wind15 mph SE
Gusts33 mph
UV index6 – High
Precip chance12%
Sunrise07:29
Sunset20:16
Sunday 13/9 Rain (climatological)
56°48°5.1 mm⌄
Day≈51–61°
Night≈42–53°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
61°51°20%⌄
Day≈56–66°
Night≈45–56°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
61°51°20%⌄
Day≈55–66°
Night≈45–56°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
55°47°5.1 mm⌄
Day≈49–60°
Night≈42–53°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
53°46°20%⌄
Day≈48–59°
Night≈41–52°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
53°46°20%⌄
Day≈47–58°
Night≈40–51°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
50°44°3.7 mm⌄
Day≈45–55°
Night≈39–50°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
56°48°20%⌄
Day≈51–62°
Night≈43–54°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
59°49°20%⌄
Day≈53–64°
Night≈44–55°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
57°49°4.8 mm⌄
Day≈52–63°
Night≈43–54°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
56°48°20%⌄
Day≈51–62°
Night≈43–54°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
51°45°20%⌄
Day≈46–56°
Night≈39–50°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
52°45°4.5 mm⌄
Day≈47–57°
Night≈40–51°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
51°45°20%⌄
Day≈46–57°
Night≈40–51°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
57°48°20%⌄
Day≈52–62°
Night≈43–54°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Rain (climatological)
61°51°3.2 mm⌄
Day≈56–66°
Night≈45–56°
Precip≈1.6 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 County 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.