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
31°
Tue, Sep 1
Coldest night
10°
Fri, Sep 4
Days with precip
8 / 14
of 14 forecast days
Nicest day
Fri, Sep 4
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
27° 12°
69% precip chance
Sat 5 – Sun 6 Sep
26° 13°
5% precip chance
Sat 12 – Sun 13 Sep
21° 11°
typical range
Sat 19 – Sun 20 Sep
22° 10°
typical range
30 days — Clay
14 forecast + 16 climatology
Thu · Today Mostly cloudy
27°18°1.3 mm⌄
Wind12 mph SW
Gusts20 mph
UV index5 – Moderate
Precip chance57%
Sunrise06:23
Sunset19:48
Fri · Tomorrow Showers
21°13°0.3 mm⌄
Wind9 mph NW
Gusts11 mph
UV index6 – High
Precip chance37%
Sunrise06:24
Sunset19:47
Saturday 29/8 Sunny
27°12°6%⌄
Wind8 mph SW
Gusts12 mph
UV index7 – High
Precip chance6%
Sunrise06:25
Sunset19:45
Sunday 30/8 Mostly cloudy
26°18°2.9 mm⌄
Wind9 mph W
Gusts17 mph
UV index6 – High
Precip chance69%
Sunrise06:26
Sunset19:43
Monday 31/8 Showers
22°17°3.1 mm⌄
Wind7 mph SW
Gusts19 mph
UV index5 – Moderate
Precip chance85%
Sunrise06:27
Sunset19:42
Tuesday 1/9 Showers
31°20°2.3 mm⌄
Wind12 mph NW
Gusts26 mph
UV index7 – High
Precip chance70%
Sunrise06:29
Sunset19:40
Wednesday 2/9 Showers
19°14°3.6 mm⌄
Wind11 mph NW
Gusts21 mph
UV index4 – Moderate
Precip chance79%
Sunrise06:30
Sunset19:38
Thursday 3/9 Mostly cloudy
21°12°13%⌄
Wind12 mph N
Gusts17 mph
UV index6 – High
Precip chance13%
Sunrise06:31
Sunset19:36
Friday 4/9 Sunny
24°10°5%⌄
Wind6 mph E
Gusts12 mph
UV index6 – High
Precip chance5%
Sunrise06:32
Sunset19:35
Saturday 5/9 Sunny
24°13°5%⌄
Wind7 mph E
Gusts15 mph
UV index6 – High
Precip chance5%
Sunrise06:33
Sunset19:33
Sunday 6/9 Sunny
26°13°4%⌄
Wind10 mph S
Gusts26 mph
UV index7 – High
Precip chance4%
Sunrise06:34
Sunset19:31
Monday 7/9 Mostly cloudy
20°15°6.0 mm⌄
Wind12 mph SW
Gusts26 mph
UV index4 – Moderate
Precip chance81%
Sunrise06:35
Sunset19:29
Tuesday 8/9 Mostly cloudy
19°13°1.2 mm⌄
Wind9 mph W
Gusts19 mph
UV index4 – Moderate
Precip chance68%
Sunrise06:36
Sunset19:28
Wednesday 9/9 Mostly cloudy
18°11°4.3 mm⌄
Wind15 mph W
Gusts28 mph
UV index4 – Moderate
Precip chance84%
Sunrise06:37
Sunset19:26
Thursday 10/9 Rain (climatological)
19°10°5.2 mm⌄
Day≈16–22°
Night≈7–13°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
20°11°20%⌄
Day≈17–23°
Night≈8–14°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
21°12°20%⌄
Day≈18–24°
Night≈9–15°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
20°11°3.8 mm⌄
Day≈17–23°
Night≈8–14°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
17°9°20%⌄
Day≈14–20°
Night≈6–12°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
16°9°20%⌄
Day≈13–19°
Night≈6–12°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
16°8°4.5 mm⌄
Day≈13–19°
Night≈5–11°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
18°10°20%⌄
Day≈15–21°
Night≈7–13°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
21°12°20%⌄
Day≈18–24°
Night≈9–15°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
22°12°3.6 mm⌄
Day≈19–25°
Night≈9–15°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
19°10°20%⌄
Day≈16–22°
Night≈7–13°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
18°10°20%⌄
Day≈15–21°
Night≈7–13°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
18°10°5.8 mm⌄
Day≈15–21°
Night≈7–13°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
15°8°20%⌄
Day≈12–18°
Night≈5–11°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
20°11°20%⌄
Day≈17–23°
Night≈8–14°
Precip≈2.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
22°12°6.1 mm⌄
Day≈19–25°
Night≈9–15°
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 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.