Effort · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Effort & 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
84°
Tue, Sep 1
Coldest night
48°
Wed, Sep 9
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 29 – Sun 30 Aug
80° 58°
12% precip chance
Sat 5 – Sun 6 Sep
68° 53°
72% precip chance
Sat 12 – Sun 13 Sep
71° 55°
typical range
Sat 19 – Sun 20 Sep
73° 56°
typical range
30 days — Effort
14 forecast + 16 climatology
Thu · Today Mostly cloudy
80°63°10.9 mm⌄
Wind11 mph SW
Gusts26 mph
UV index6 – High
Precip chance84%
Sunrise06:23
Sunset19:42
Fri · Tomorrow Fog
77°63°0.9 mm⌄
Wind8 mph NW
Gusts21 mph
UV index6 – High
Precip chance49%
Sunrise06:24
Sunset19:41
Saturday 29/8 Mostly cloudy
76°58°12%⌄
Wind6 mph N
Gusts21 mph
UV index6 – High
Precip chance12%
Sunrise06:25
Sunset19:39
Sunday 30/8 Sunny
80°60°10%⌄
Wind10 mph SW
Gusts17 mph
UV index7 – High
Precip chance10%
Sunrise06:26
Sunset19:38
Monday 31/8 Mostly cloudy
75°65°1.3 mm⌄
Wind11 mph W
Gusts30 mph
UV index6 – High
Precip chance67%
Sunrise06:27
Sunset19:36
Tuesday 1/9 Thunderstorms
84°65°18.4 mm⌄
Wind8 mph W
Gusts31 mph
UV index6 – High
Precip chance88%
Sunrise06:28
Sunset19:34
Wednesday 2/9 Fog
71°64°32.3 mm⌄
Wind13 mph N
Gusts26 mph
UV index5 – Moderate
Precip chance94%
Sunrise06:29
Sunset19:33
Thursday 3/9 Fog
82°64°12.9 mm⌄
Wind11 mph NW
Gusts25 mph
UV index6 – High
Precip chance88%
Sunrise06:30
Sunset19:31
Friday 4/9 Showers
72°67°7.3 mm⌄
Wind3 mph W
Gusts9 mph
UV index5 – Moderate
Precip chance91%
Sunrise06:31
Sunset19:29
Saturday 5/9 Fog
67°56°2.6 mm⌄
Wind9 mph E
Gusts19 mph
UV index5 – Moderate
Precip chance72%
Sunrise06:32
Sunset19:28
Sunday 6/9 Sunny
68°53°6%⌄
Wind8 mph E
Gusts15 mph
UV index5 – Moderate
Precip chance6%
Sunrise06:33
Sunset19:26
Monday 7/9 Fog
69°53°0.6 mm⌄
Wind9 mph S
Gusts16 mph
UV index6 – High
Precip chance51%
Sunrise06:34
Sunset19:24
Tuesday 8/9 Mostly cloudy
70°56°21%⌄
Wind9 mph W
Gusts14 mph
UV index5 – Moderate
Precip chance21%
Sunrise06:35
Sunset19:23
Wednesday 9/9 Showers
64°48°26.1 mm⌄
Wind13 mph W
Gusts28 mph
UV index4 – Moderate
Precip chance93%
Sunrise06:36
Sunset19:21
Thursday 10/9 Rain (climatological)
66°53°13.1 mm⌄
Day≈60–71°
Night≈47–58°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
68°54°20%⌄
Day≈62–73°
Night≈48–59°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
71°55°20%⌄
Day≈65–76°
Night≈50–61°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
70°55°32.0 mm⌄
Day≈64–75°
Night≈49–60°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
62°50°20%⌄
Day≈57–67°
Night≈45–56°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
61°50°20%⌄
Day≈56–67°
Night≈44–55°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
65°52°23.8 mm⌄
Day≈59–70°
Night≈47–57°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
67°53°20%⌄
Day≈61–72°
Night≈48–59°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
69°54°20%⌄
Day≈63–74°
Night≈49–60°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
73°57°23.8 mm⌄
Day≈67–78°
Night≈51–62°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
71°56°20%⌄
Day≈65–76°
Night≈50–61°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
63°51°20%⌄
Day≈58–69°
Night≈46–56°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
62°50°17.2 mm⌄
Day≈57–67°
Night≈45–56°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
64°51°20%⌄
Day≈58–69°
Night≈46–57°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
64°52°20%⌄
Day≈59–69°
Night≈46–57°
Precip≈9.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
69°55°18.9 mm⌄
Day≈64–74°
Night≈49–60°
Precip≈9.7 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 Effort, 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.