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
78°
Sat, Aug 29
Coldest night
46°
Wed, Sep 2
Days with precip
5 / 14
of 14 forecast days
Nicest day
Thu, Aug 27
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
66° 47°
36% precip chance
Sat 29 – Sun 30 Aug
78° 50°
78% precip chance
Sat 5 – Sun 6 Sep
59° 48°
typical range
Sat 12 – Sun 13 Sep
57° 46°
typical range
30 days — County Park
14 forecast + 16 climatology
Fri · Today Showers
69°58°8.3 mm⌄
Wind9 mph S
Gusts16 mph
UV index5 – Moderate
Precip chance87%
Sunrise06:59
Sunset21:00
Sat · Tomorrow Sunny
66°56°0.6 mm⌄
Wind15 mph NW
Gusts29 mph
UV index5 – Moderate
Precip chance36%
Sunrise07:00
Sunset20:58
Sunday 23/8 Sunny
61°47°6%⌄
Wind14 mph SW
Gusts17 mph
UV index6 – Moderate
Precip chance6%
Sunrise07:02
Sunset20:57
Monday 24/8 Mostly cloudy
60°50°13%⌄
Wind7 mph SW
Gusts15 mph
UV index6 – High
Precip chance13%
Sunrise07:03
Sunset20:55
Tuesday 25/8 Mostly cloudy
63°56°1.9 mm⌄
Wind8 mph SE
Gusts12 mph
UV index5 – Moderate
Precip chance64%
Sunrise07:04
Sunset20:53
Wednesday 26/8 Showers
64°56°0.7 mm⌄
Wind7 mph N
Gusts10 mph
UV index5 – Moderate
Precip chance65%
Sunrise07:06
Sunset20:51
Thursday 27/8 Sunny
64°59°17%⌄
Wind7 mph SE
Gusts18 mph
UV index5 – Moderate
Precip chance17%
Sunrise07:07
Sunset20:49
Friday 28/8 Fog
64°56°34%⌄
Wind7 mph SE
Gusts11 mph
UV index5 – Moderate
Precip chance34%
Sunrise07:09
Sunset20:47
Saturday 29/8 Showers
78°62°8.7 mm⌄
Wind10 mph W
Gusts18 mph
UV index7 – High
Precip chance78%
Sunrise07:10
Sunset20:45
Sunday 30/8 Sunny
62°50°9%⌄
Wind13 mph S
Gusts19 mph
UV index5 – Moderate
Precip chance9%
Sunrise07:11
Sunset20:43
Monday 31/8 Sunny
65°55°16%⌄
Wind13 mph S
Gusts20 mph
UV index5 – Moderate
Precip chance16%
Sunrise07:13
Sunset20:41
Tuesday 1/9 Sunny
69°55°3.6 mm⌄
Wind19 mph NW
Gusts27 mph
UV index6 – High
Precip chance63%
Sunrise07:14
Sunset20:39
Wednesday 2/9 Sunny
56°46°10%⌄
Wind14 mph NW
Gusts24 mph
UV index4 – Moderate
Precip chance10%
Sunrise07:15
Sunset20:37
Thursday 3/9 Mostly cloudy
56°50°18%⌄
Wind7 mph E
Gusts16 mph
UV index4 – Moderate
Precip chance18%
Sunrise07:17
Sunset20:35
Friday 4/9 Rain (climatological)
54°45°6.6 mm⌄
Day≈49–60°
Night≈40–50°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Partly cloudy (climatological)
59°48°20%⌄
Day≈54–65°
Night≈42–53°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
59°48°20%⌄
Day≈54–65°
Night≈42–53°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Rain (climatological)
53°44°6.6 mm⌄
Day≈48–59°
Night≈39–50°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
52°43°20%⌄
Day≈46–57°
Night≈38–49°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
51°43°20%⌄
Day≈46–56°
Night≈37–48°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Rain (climatological)
48°41°4.9 mm⌄
Day≈43–54°
Night≈36–47°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
55°45°20%⌄
Day≈49–60°
Night≈40–51°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
57°47°20%⌄
Day≈52–62°
Night≈41–52°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
56°46°6.2 mm⌄
Day≈50–61°
Night≈40–51°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
55°45°20%⌄
Day≈49–60°
Night≈40–51°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
49°42°20%⌄
Day≈44–55°
Night≈37–47°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
50°42°5.9 mm⌄
Day≈45–56°
Night≈37–48°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
50°42°20%⌄
Day≈44–55°
Night≈37–48°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
55°46°20%⌄
Day≈50–61°
Night≈40–51°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
59°48°4.2 mm⌄
Day≈54–65°
Night≈42–53°
Precip≈2.1 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 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.