Chelsea · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Chelsea & 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
86°
Sun, Aug 30
Coldest night
57°
Sun, Sep 6
Days with precip
10 / 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
86° 62°
57% precip chance
Sat 5 – Sun 6 Sep
71° 57°
64% precip chance
Sat 12 – Sun 13 Sep
72° 55°
typical range
Sat 19 – Sun 20 Sep
70° 57°
typical range
30 days — Chelsea
14 forecast + 16 climatology
Thu · Today Mostly cloudy
86°62°0.7 mm⌄
Wind14 mph S
Gusts27 mph
UV index7 – High
Precip chance44%
Sunrise06:04
Sunset19:27
Fri · Tomorrow Showers
84°68°8.2 mm⌄
Wind11 mph SW
Gusts25 mph
UV index6 – High
Precip chance81%
Sunrise06:05
Sunset19:25
Saturday 29/8 Mostly cloudy
74°64°12%⌄
Wind8 mph N
Gusts20 mph
UV index5 – Moderate
Precip chance12%
Sunrise06:06
Sunset19:23
Sunday 30/8 Mostly cloudy
86°62°1.8 mm⌄
Wind13 mph SW
Gusts28 mph
UV index7 – High
Precip chance57%
Sunrise06:07
Sunset19:22
Monday 31/8 Showers
78°65°3.5 mm⌄
Wind7 mph NW
Gusts19 mph
UV index6 – High
Precip chance80%
Sunrise06:08
Sunset19:20
Tuesday 1/9 Showers
65°63°5.8 mm⌄
Wind9 mph E
Gusts16 mph
UV index4 – Moderate
Precip chance88%
Sunrise06:09
Sunset19:18
Wednesday 2/9 Fog
65°63°11.1 mm⌄
Wind6 mph SE
Gusts14 mph
UV index4 – Moderate
Precip chance92%
Sunrise06:10
Sunset19:17
Thursday 3/9 Showers
67°64°27.2 mm⌄
Wind10 mph N
Gusts18 mph
UV index4 – Moderate
Precip chance94%
Sunrise06:11
Sunset19:15
Friday 4/9 Showers
66°61°5.2 mm⌄
Wind10 mph N
Gusts18 mph
UV index4 – Moderate
Precip chance90%
Sunrise06:12
Sunset19:13
Saturday 5/9 Sunny
70°60°4.1 mm⌄
Wind12 mph NE
Gusts17 mph
UV index6 – High
Precip chance64%
Sunrise06:13
Sunset19:12
Sunday 6/9 Sunny
71°57°8%⌄
Wind9 mph E
Gusts14 mph
UV index6 – High
Precip chance8%
Sunrise06:14
Sunset19:10
Monday 7/9 Mostly cloudy
69°60°0.8 mm⌄
Wind11 mph E
Gusts14 mph
UV index5 – Moderate
Precip chance57%
Sunrise06:15
Sunset19:08
Tuesday 8/9 Showers
73°59°3.3 mm⌄
Wind8 mph S
Gusts19 mph
UV index5 – Moderate
Precip chance78%
Sunrise06:16
Sunset19:06
Wednesday 9/9 Mostly cloudy
69°62°60.6 mm⌄
Wind12 mph S
Gusts32 mph
UV index5 – Moderate
Precip chance91%
Sunrise06:18
Sunset19:05
Thursday 10/9 Rain (climatological)
65°55°37.3 mm⌄
Day≈60–71°
Night≈50–60°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
67°56°20%⌄
Day≈62–73°
Night≈51–61°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
72°59°20%⌄
Day≈67–77°
Night≈54–64°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
66°55°16.3 mm⌄
Day≈60–71°
Night≈50–61°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
61°52°20%⌄
Day≈55–66°
Night≈47–58°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
63°54°20%⌄
Day≈58–69°
Night≈48–59°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
61°53°34.4 mm⌄
Day≈56–67°
Night≈47–58°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
66°56°20%⌄
Day≈61–72°
Night≈50–61°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
71°58°20%⌄
Day≈65–76°
Night≈53–64°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
70°58°24.9 mm⌄
Day≈65–76°
Night≈53–64°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
68°57°20%⌄
Day≈63–73°
Night≈51–62°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
61°53°20%⌄
Day≈56–67°
Night≈47–58°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
63°54°35.4 mm⌄
Day≈58–68°
Night≈48–59°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
63°53°20%⌄
Day≈57–68°
Night≈48–59°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
64°54°20%⌄
Day≈58–69°
Night≈49–59°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
70°58°25.8 mm⌄
Day≈65–75°
Night≈52–63°
Precip≈11.3 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 Chelsea, 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.