Welcome · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Welcome & 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
40°
Fri, Sep 4
Coldest night
20°
Fri, Aug 28
Days with precip
5 / 14
of 14 forecast days
Nicest day
Sun, Aug 30
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
33° 21°
67% precip chance
Sat 5 – Sun 6 Sep
38° 22°
66% precip chance
Sat 12 – Sun 13 Sep
35° 21°
typical range
Sat 19 – Sun 20 Sep
33° 21°
typical range
30 days — Welcome
14 forecast + 16 climatology
Fri · Today Mostly cloudy
29°20°1.9 mm⌄
Wind6 mph S
Gusts13 mph
UV index6 – High
Precip chance67%
Sunrise06:49
Sunset19:54
Sat · Tomorrow Mostly cloudy
31°21°1.6 mm⌄
Wind9 mph S
Gusts14 mph
UV index7 – High
Precip chance67%
Sunrise06:50
Sunset19:53
Sunday 30/8 Sunny
33°22°9%⌄
Wind6 mph S
Gusts16 mph
UV index8 – Very high
Precip chance9%
Sunrise06:51
Sunset19:51
Monday 31/8 Sunny
35°23°5%⌄
Wind7 mph W
Gusts13 mph
UV index8 – Very high
Precip chance5%
Sunrise06:52
Sunset19:50
Tuesday 1/9 Sunny
36°24°3%⌄
Wind7 mph W
Gusts18 mph
UV index9 – Very high
Precip chance3%
Sunrise06:53
Sunset19:49
Wednesday 2/9 Sunny
37°26°1%⌄
Wind7 mph W
Gusts18 mph
UV index9 – Very high
Precip chance1%
Sunrise06:53
Sunset19:47
Thursday 3/9 Sunny
38°27°1%⌄
Wind7 mph W
Gusts9 mph
UV index9 – Very high
Precip chance1%
Sunrise06:54
Sunset19:46
Friday 4/9 Sunny
40°27°0.5 mm⌄
Wind15 mph NW
Gusts22 mph
UV index9 – Very high
Precip chance36%
Sunrise06:55
Sunset19:44
Saturday 5/9 Sunny
37°22°20.6 mm⌄
Wind25 mph N
Gusts37 mph
UV index9 – Very high
Precip chance66%
Sunrise06:56
Sunset19:43
Sunday 6/9 Sunny
38°23°2.2 mm⌄
Wind10 mph SW
Gusts20 mph
UV index9 – Very high
Precip chance57%
Sunrise06:56
Sunset19:41
Monday 7/9 Sunny
30°21°0.5 mm⌄
Wind10 mph NE
Gusts19 mph
UV index7 – High
Precip chance39%
Sunrise06:57
Sunset19:40
Tuesday 8/9 Sunny
34°20°4.0 mm⌄
Wind12 mph N
Gusts28 mph
UV index8 – Very high
Precip chance67%
Sunrise06:58
Sunset19:39
Wednesday 9/9 Fog
34°21°0.6 mm⌄
Wind9 mph SW
Gusts17 mph
UV index8 – Very high
Precip chance36%
Sunrise06:59
Sunset19:37
Thursday 10/9 Mostly cloudy
34°23°11%⌄
Wind9 mph S
Gusts20 mph
UV index7 – High
Precip chance11%
Sunrise06:59
Sunset19:36
Friday 11/9 Rain (climatological)
30°19°8.5 mm⌄
Day≈27–33°
Night≈16–22°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
35°22°20%⌄
Day≈32–38°
Night≈19–25°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
34°21°20%⌄
Day≈31–37°
Night≈18–24°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
33°21°6.0 mm⌄
Day≈30–36°
Night≈18–24°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
31°20°20%⌄
Day≈28–34°
Night≈17–23°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
28°18°20%⌄
Day≈25–31°
Night≈15–21°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
29°18°9.2 mm⌄
Day≈26–32°
Night≈15–21°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
31°20°20%⌄
Day≈28–34°
Night≈17–23°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
33°21°20%⌄
Day≈30–36°
Night≈18–24°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
33°21°6.7 mm⌄
Day≈30–36°
Night≈18–24°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
33°21°20%⌄
Day≈30–36°
Night≈18–24°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
31°20°20%⌄
Day≈28–34°
Night≈17–23°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
30°19°5.3 mm⌄
Day≈27–33°
Night≈16–22°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
29°18°20%⌄
Day≈26–32°
Night≈15–21°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
32°21°20%⌄
Day≈29–35°
Night≈18–24°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
34°21°7.8 mm⌄
Day≈31–37°
Night≈18–24°
Precip≈2.7 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 Welcome, 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.