Clay · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Clay & 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
81°
Wed, Sep 2
Coldest night
53°
Mon, Sep 7
Days with precip
8 / 14
of 14 forecast days
Nicest day
Sun, Sep 6
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
71° 53°
36% precip chance
Sat 12 – Sun 13 Sep
68° 52°
typical range
Sat 19 – Sun 20 Sep
61° 49°
typical range
Sat 26 – Sun 27 Sep
65° 49°
typical range
30 days — Clay
14 forecast + 16 climatology
Sun · Today Mostly cloudy
78°63°12%⌄
Wind10 mph W
Gusts17 mph
UV index2 – Low
Precip chance12%
Sunrise06:26
Sunset19:43
Mon · Tomorrow Mostly cloudy
72°61°4.5 mm⌄
Wind7 mph SE
Gusts11 mph
UV index5 – Moderate
Precip chance88%
Sunrise06:27
Sunset19:42
Tuesday 1/9 Showers
77°66°34.9 mm⌄
Wind9 mph E
Gusts20 mph
UV index6 – High
Precip chance92%
Sunrise06:29
Sunset19:40
Wednesday 2/9 Showers
81°66°22.0 mm⌄
Wind10 mph S
Gusts23 mph
UV index5 – Moderate
Precip chance92%
Sunrise06:30
Sunset19:38
Thursday 3/9 Showers
76°65°6.7 mm⌄
Wind13 mph SW
Gusts31 mph
UV index7 – High
Precip chance79%
Sunrise06:31
Sunset19:36
Friday 4/9 Mostly cloudy
73°61°23%⌄
Wind11 mph NW
Gusts18 mph
UV index6 – High
Precip chance23%
Sunrise06:32
Sunset19:35
Saturday 5/9 Sunny
71°58°0.5 mm⌄
Wind12 mph NW
Gusts23 mph
UV index6 – High
Precip chance36%
Sunrise06:33
Sunset19:33
Sunday 6/9 Sunny
69°53°7%⌄
Wind9 mph N
Gusts22 mph
UV index5 – Moderate
Precip chance7%
Sunrise06:34
Sunset19:31
Monday 7/9 Mostly cloudy
73°53°15%⌄
Wind6 mph E
Gusts11 mph
UV index5 – Moderate
Precip chance15%
Sunrise06:35
Sunset19:29
Tuesday 8/9 Mostly cloudy
65°59°7.4 mm⌄
Wind16 mph E
Gusts34 mph
UV index4 – Moderate
Precip chance82%
Sunrise06:36
Sunset19:28
Wednesday 9/9 Showers
64°59°17.2 mm⌄
Wind18 mph E
Gusts36 mph
UV index4 – Moderate
Precip chance93%
Sunrise06:37
Sunset19:26
Thursday 10/9 Fog
68°62°0.5 mm⌄
Wind10 mph NW
Gusts20 mph
UV index5 – Moderate
Precip chance64%
Sunrise06:38
Sunset19:24
Friday 11/9 Fog
62°57°1.8 mm⌄
Wind5 mph SW
Gusts13 mph
UV index4 – Moderate
Precip chance83%
Sunrise06:40
Sunset19:22
Saturday 12/9 Sunny
68°55°11%⌄
Wind11 mph NW
Gusts13 mph
UV index6 – High
Precip chance11%
Sunrise06:41
Sunset19:20
Sunday 13/9 Rain (climatological)
63°52°20.1 mm⌄
Day≈57–68°
Night≈47–58°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
66°54°20%⌄
Day≈61–72°
Night≈49–60°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
68°55°20%⌄
Day≈62–73°
Night≈50–61°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
66°54°14.6 mm⌄
Day≈61–72°
Night≈49–60°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
60°50°20%⌄
Day≈54–65°
Night≈45–56°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
59°50°20%⌄
Day≈54–64°
Night≈45–55°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
58°49°17.3 mm⌄
Day≈52–63°
Night≈44–55°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
61°51°20%⌄
Day≈56–66°
Night≈46–57°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
68°55°20%⌄
Day≈62–73°
Night≈50–61°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
69°56°13.9 mm⌄
Day≈64–74°
Night≈51–62°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
63°52°20%⌄
Day≈57–68°
Night≈47–58°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
62°52°20%⌄
Day≈56–67°
Night≈46–57°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
61°51°22.2 mm⌄
Day≈56–66°
Night≈46–57°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
56°49°20%⌄
Day≈51–62°
Night≈43–54°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
65°54°20%⌄
Day≈60–71°
Night≈48–59°
Precip≈8.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Rain (climatological)
69°56°23.6 mm⌄
Day≈63–74°
Night≈51–61°
Precip≈8.2 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 Clay, 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.