Ct 0030 · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Ct 0030 & 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°
Thu, Aug 27
Coldest night
50°
Mon, Aug 31
Days with precip
7 / 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
74° 58°
89% precip chance
Sat 5 – Sun 6 Sep
76° 56°
6% precip chance
Sat 12 – Sun 13 Sep
62° 48°
typical range
Sat 19 – Sun 20 Sep
64° 48°
typical range
30 days — Ct 0030
14 forecast + 16 climatology
Thu · Today Showers
81°63°3.5 mm⌄
Wind11 mph S
Gusts26 mph
UV index7 – High
Precip chance72%
Sunrise06:09
Sunset19:41
Fri · Tomorrow Sunny
72°60°0.3 mm⌄
Wind11 mph SW
Gusts28 mph
UV index6 – High
Precip chance23%
Sunrise06:10
Sunset19:39
Saturday 29/8 Sunny
74°58°17%⌄
Wind11 mph W
Gusts22 mph
UV index6 – High
Precip chance17%
Sunrise06:11
Sunset19:38
Sunday 30/8 Showers
69°60°12.2 mm⌄
Wind13 mph SW
Gusts31 mph
UV index5 – Moderate
Precip chance89%
Sunrise06:13
Sunset19:36
Monday 31/8 Mostly cloudy
67°50°7.6 mm⌄
Wind10 mph NE
Gusts25 mph
UV index5 – Moderate
Precip chance78%
Sunrise06:14
Sunset19:34
Tuesday 1/9 Fog
68°58°3.1 mm⌄
Wind5 mph E
Gusts10 mph
UV index6 – High
Precip chance85%
Sunrise06:15
Sunset19:32
Wednesday 2/9 Fog
59°55°1.6 mm⌄
Wind7 mph N
Gusts16 mph
UV index3 – Moderate
Precip chance80%
Sunrise06:16
Sunset19:30
Thursday 3/9 Mostly cloudy
66°54°0.2 mm⌄
Wind9 mph NE
Gusts16 mph
UV index5 – Moderate
Precip chance30%
Sunrise06:18
Sunset19:28
Friday 4/9 Sunny
72°52°6%⌄
Wind5 mph E
Gusts15 mph
UV index6 – High
Precip chance6%
Sunrise06:19
Sunset19:26
Saturday 5/9 Sunny
76°56°5%⌄
Wind4 mph S
Gusts13 mph
UV index6 – High
Precip chance5%
Sunrise06:20
Sunset19:25
Sunday 6/9 Sunny
76°57°6%⌄
Wind6 mph S
Gusts16 mph
UV index6 – High
Precip chance6%
Sunrise06:21
Sunset19:23
Monday 7/9 Mostly cloudy
71°59°1.4 mm⌄
Wind16 mph S
Gusts28 mph
UV index5 – Moderate
Precip chance59%
Sunrise06:22
Sunset19:21
Tuesday 8/9 Mostly cloudy
62°56°0.3 mm⌄
Wind12 mph SW
Gusts22 mph
UV index4 – Moderate
Precip chance43%
Sunrise06:24
Sunset19:19
Wednesday 9/9 Showers
61°53°6.6 mm⌄
Wind8 mph SE
Gusts20 mph
UV index4 – Moderate
Precip chance89%
Sunrise06:25
Sunset19:17
Thursday 10/9 Rain (climatological)
59°47°9.6 mm⌄
Day≈54–65°
Night≈42–53°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
66°51°20%⌄
Day≈60–71°
Night≈46–56°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
62°49°20%⌄
Day≈57–68°
Night≈44–55°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
60°48°5.1 mm⌄
Day≈55–66°
Night≈42–53°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
57°46°20%⌄
Day≈51–62°
Night≈40–51°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
55°45°20%⌄
Day≈49–60°
Night≈39–50°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
58°46°7.5 mm⌄
Day≈52–63°
Night≈41–52°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
60°48°20%⌄
Day≈55–65°
Night≈42–53°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
64°50°20%⌄
Day≈59–70°
Night≈45–56°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
64°50°9.3 mm⌄
Day≈58–69°
Night≈45–56°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
60°48°20%⌄
Day≈54–65°
Night≈42–53°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
58°47°20%⌄
Day≈53–63°
Night≈41–52°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
53°44°4.8 mm⌄
Day≈48–59°
Night≈38–49°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
56°46°20%⌄
Day≈51–62°
Night≈40–51°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
61°48°20%⌄
Day≈56–67°
Night≈43–54°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
65°51°9.1 mm⌄
Day≈60–71°
Night≈46–56°
Precip≈3.2 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 Ct 0030, 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.