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°
Wed, Sep 2
Coldest night
15°
Mon, Sep 7
Days with precip
2 / 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
30° 18°
74% precip chance
Sat 12 – Sun 13 Sep
36° 19°
typical range
Sat 19 – Sun 20 Sep
31° 17°
typical range
Sat 26 – Sun 27 Sep
32° 18°
typical range
30 days — Brighton
14 forecast + 16 climatology
Sun · Today Sunny
34°20°5%⌄
Wind12 mph S
Gusts24 mph
UV index8 – Very high
Precip chance5%
Sunrise06:27
Sunset19:34
Mon · Tomorrow Sunny
37°22°2%⌄
Wind12 mph SW
Gusts26 mph
UV index8 – High
Precip chance2%
Sunrise06:28
Sunset19:33
Tuesday 1/9 Sunny
38°25°2%⌄
Wind11 mph SW
Gusts29 mph
UV index8 – Very high
Precip chance2%
Sunrise06:29
Sunset19:31
Wednesday 2/9 Sunny
38°26°1%⌄
Wind14 mph SW
Gusts31 mph
UV index9 – Very high
Precip chance1%
Sunrise06:30
Sunset19:30
Thursday 3/9 Sunny
38°27°0.2 mm⌄
Wind11 mph SW
Gusts26 mph
UV index9 – Very high
Precip chance17%
Sunrise06:31
Sunset19:28
Friday 4/9 Sunny
37°25°0.6 mm⌄
Wind20 mph NW
Gusts34 mph
UV index9 – Very high
Precip chance36%
Sunrise06:32
Sunset19:27
Saturday 5/9 Showers
26°23°2.1 mm⌄
Wind13 mph E
Gusts24 mph
UV index6 – High
Precip chance74%
Sunrise06:33
Sunset19:25
Sunday 6/9 Sunny
30°18°0.3 mm⌄
Wind15 mph N
Gusts22 mph
UV index8 – Very high
Precip chance36%
Sunrise06:33
Sunset19:23
Monday 7/9 Sunny
28°15°0.2 mm⌄
Wind9 mph E
Gusts23 mph
UV index7 – High
Precip chance17%
Sunrise06:34
Sunset19:22
Tuesday 8/9 Showers
35°18°6.4 mm⌄
Wind15 mph W
Gusts27 mph
UV index8 – Very high
Precip chance69%
Sunrise06:35
Sunset19:20
Wednesday 9/9 Mostly cloudy
35°22°10%⌄
Wind8 mph S
Gusts19 mph
UV index8 – Very high
Precip chance10%
Sunrise06:36
Sunset19:19
Thursday 10/9 Sunny
31°23°0.3 mm⌄
Wind14 mph E
Gusts27 mph
UV index7 – High
Precip chance36%
Sunrise06:37
Sunset19:17
Friday 11/9 Sunny
33°20°17%⌄
Wind13 mph SE
Gusts30 mph
UV index8 – Very high
Precip chance17%
Sunrise06:38
Sunset19:15
Saturday 12/9 Sunny
36°21°1%⌄
Wind13 mph SE
Gusts30 mph
UV index9 – Very high
Precip chance1%
Sunrise06:39
Sunset19:14
Sunday 13/9 Rain (climatological)
31°19°2.1 mm⌄
Day≈28–34°
Night≈16–22°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
33°20°20%⌄
Day≈30–36°
Night≈17–23°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
32°19°20%⌄
Day≈29–35°
Night≈16–22°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
32°20°2.1 mm⌄
Day≈29–35°
Night≈17–23°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
29°18°20%⌄
Day≈26–32°
Night≈15–21°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
27°16°20%⌄
Day≈24–30°
Night≈13–19°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
28°17°2.6 mm⌄
Day≈25–31°
Night≈14–20°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
31°19°20%⌄
Day≈28–34°
Night≈16–22°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
31°19°20%⌄
Day≈28–34°
Night≈16–22°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Light rain (climatological)
33°20°1.5 mm⌄
Day≈30–36°
Night≈17–23°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
32°20°20%⌄
Day≈29–35°
Night≈17–23°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
28°17°20%⌄
Day≈25–31°
Night≈14–20°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
28°17°2.7 mm⌄
Day≈25–31°
Night≈14–20°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
29°18°20%⌄
Day≈26–32°
Night≈15–21°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
32°19°20%⌄
Day≈29–35°
Night≈16–22°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Light rain (climatological)
32°20°1.3 mm⌄
Day≈29–35°
Night≈17–23°
Precip≈0.9 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.