Brighton · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Brighton & 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
38°
Tue, Sep 1
Coldest night
20°
Mon, Sep 14
Days with precip
5 / 14
of 14 forecast days
Nicest day
Mon, Sep 7
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
37° 20°
57% precip chance
Sat 12 – Sun 13 Sep
32° 21°
74% precip chance
Sat 19 – Sun 20 Sep
32° 21°
typical range
Sat 26 – Sun 27 Sep
32° 20°
typical range
30 days — Brighton
14 forecast + 16 climatology
Tue · Today Sunny
38°21°4%⌄
Wind4 mph SE
Gusts15 mph
UV index9 – Very high
Precip chance4%
Sunrise06:18
Sunset19:13
Wed · Tomorrow Sunny
35°24°3%⌄
Wind4 mph SE
Gusts5 mph
UV index9 – Very high
Precip chance3%
Sunrise06:19
Sunset19:11
Thursday 3/9 Sunny
36°24°4%⌄
Wind5 mph S
Gusts15 mph
UV index9 – Very high
Precip chance4%
Sunrise06:20
Sunset19:10
Friday 4/9 Sunny
36°24°17%⌄
Wind4 mph SE
Gusts15 mph
UV index9 – Very high
Precip chance17%
Sunrise06:20
Sunset19:08
Saturday 5/9 Sunny
37°22°1.7 mm⌄
Wind18 mph NE
Gusts35 mph
UV index8 – Very high
Precip chance57%
Sunrise06:21
Sunset19:07
Sunday 6/9 Sunny
32°20°9%⌄
Wind6 mph N
Gusts16 mph
UV index8 – Very high
Precip chance9%
Sunrise06:22
Sunset19:06
Monday 7/9 Sunny
31°20°8%⌄
Wind10 mph SE
Gusts25 mph
UV index8 – Very high
Precip chance8%
Sunrise06:22
Sunset19:04
Tuesday 8/9 Mostly cloudy
28°21°18%⌄
Wind11 mph S
Gusts25 mph
UV index6 – High
Precip chance18%
Sunrise06:23
Sunset19:03
Wednesday 9/9 Mostly cloudy
34°22°0.1 mm⌄
Wind9 mph SW
Gusts10 mph
UV index7 – High
Precip chance22%
Sunrise06:24
Sunset19:01
Thursday 10/9 Mostly cloudy
30°24°2.6 mm⌄
Wind10 mph SE
Gusts20 mph
UV index6 – High
Precip chance76%
Sunrise06:25
Sunset19:00
Friday 11/9 Sunny
34°23°0.3 mm⌄
Wind13 mph SW
Gusts27 mph
UV index8 – Very high
Precip chance18%
Sunrise06:25
Sunset18:59
Saturday 12/9 Sunny
32°21°2.0 mm⌄
Wind11 mph W
Gusts17 mph
UV index7 – High
Precip chance57%
Sunrise06:26
Sunset18:57
Sunday 13/9 Partly cloudy
31°22°5.3 mm⌄
Wind12 mph SW
Gusts18 mph
UV index7 – High
Precip chance74%
Sunrise06:27
Sunset18:56
Monday 14/9 Showers
29°20°30.4 mm⌄
Wind11 mph W
Gusts15 mph
UV index6 – High
Precip chance90%
Sunrise06:28
Sunset18:54
Tuesday 15/9 Rain (climatological)
34°23°12.3 mm⌄
Day≈31–37°
Night≈20–26°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
35°23°20%⌄
Day≈32–38°
Night≈20–26°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
35°23°20%⌄
Day≈32–38°
Night≈20–26°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
35°23°8.9 mm⌄
Day≈32–38°
Night≈20–26°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
32°21°20%⌄
Day≈29–35°
Night≈18–24°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
31°21°20%⌄
Day≈28–34°
Night≈18–24°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
32°21°12.0 mm⌄
Day≈29–35°
Night≈18–24°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
33°22°20%⌄
Day≈30–36°
Night≈19–25°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
34°22°20%⌄
Day≈31–37°
Night≈19–25°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
35°23°10.4 mm⌄
Day≈32–38°
Night≈20–26°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
33°22°20%⌄
Day≈30–36°
Night≈19–25°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
32°22°20%⌄
Day≈29–35°
Night≈19–25°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Rain (climatological)
29°20°11.7 mm⌄
Day≈26–32°
Night≈17–23°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
32°21°20%⌄
Day≈29–35°
Night≈18–24°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
33°22°20%⌄
Day≈30–36°
Night≈19–25°
Precip≈3.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Rain (climatological)
34°23°12.3 mm⌄
Day≈31–37°
Night≈20–26°
Precip≈3.6 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 Brighton, 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.