Southport · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Southport & 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
95°
Sat, Sep 5
Coldest night
65°
Fri, Sep 11
Days with precip
4 / 14
of 14 forecast days
Nicest day
Fri, Sep 11
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
95° 71°
77% precip chance
Sat 12 – Sun 13 Sep
85° 66°
15% precip chance
Sat 19 – Sun 20 Sep
78° 65°
typical range
Sat 26 – Sun 27 Sep
78° 65°
typical range
30 days — Southport
14 forecast + 16 climatology
Mon · Today Showers
87°76°1.0 mm⌄
Wind9 mph E
Gusts20 mph
UV index9 – Very high
Precip chance58%
Sunrise06:45
Sunset19:39
Tue · Tomorrow Sunny
89°74°0.1 mm⌄
Wind8 mph SE
Gusts18 mph
UV index9 – Very high
Precip chance17%
Sunrise06:45
Sunset19:38
Wednesday 2/9 Mostly cloudy
92°76°13%⌄
Wind11 mph S
Gusts22 mph
UV index9 – Very high
Precip chance13%
Sunrise06:46
Sunset19:37
Thursday 3/9 Sunny
91°75°10%⌄
Wind11 mph SW
Gusts23 mph
UV index9 – Very high
Precip chance10%
Sunrise06:47
Sunset19:35
Friday 4/9 Sunny
92°75°6%⌄
Wind12 mph SW
Gusts24 mph
UV index9 – Very high
Precip chance6%
Sunrise06:47
Sunset19:34
Saturday 5/9 Sunny
95°72°19.9 mm⌄
Wind14 mph E
Gusts28 mph
UV index8 – Very high
Precip chance70%
Sunrise06:48
Sunset19:32
Sunday 6/9 Mostly cloudy
81°71°9.9 mm⌄
Wind12 mph S
Gusts18 mph
UV index7 – High
Precip chance77%
Sunrise06:49
Sunset19:31
Monday 7/9 Mostly cloudy
81°75°15%⌄
Wind13 mph E
Gusts17 mph
UV index6 – High
Precip chance15%
Sunrise06:49
Sunset19:30
Tuesday 8/9 Mostly cloudy
82°73°12%⌄
Wind10 mph E
Gusts21 mph
UV index7 – High
Precip chance12%
Sunrise06:50
Sunset19:28
Wednesday 9/9 Mostly cloudy
86°73°2.8 mm⌄
Wind14 mph SW
Gusts29 mph
UV index7 – High
Precip chance61%
Sunrise06:51
Sunset19:27
Thursday 10/9 Sunny
88°69°15.1 mm⌄
Wind13 mph N
Gusts29 mph
UV index8 – Very high
Precip chance72%
Sunrise06:52
Sunset19:26
Friday 11/9 Partly cloudy
78°65°15%⌄
Wind11 mph N
Gusts19 mph
UV index6 – High
Precip chance15%
Sunrise06:52
Sunset19:24
Saturday 12/9 Partly cloudy
84°66°15%⌄
Wind10 mph N
Gusts19 mph
UV index7 – High
Precip chance15%
Sunrise06:53
Sunset19:23
Sunday 13/9 Mostly cloudy
85°67°15%⌄
Wind7 mph N
Gusts14 mph
UV index7 – High
Precip chance15%
Sunrise06:54
Sunset19:21
Monday 14/9 Rain (climatological)
81°67°11.3 mm⌄
Day≈75–86°
Night≈62–73°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
85°70°20%⌄
Day≈79–90°
Night≈64–75°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
84°69°20%⌄
Day≈79–89°
Night≈64–75°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
81°67°8.1 mm⌄
Day≈75–86°
Night≈62–73°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
79°66°20%⌄
Day≈73–84°
Night≈61–72°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
76°65°20%⌄
Day≈71–81°
Night≈59–70°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
78°66°9.5 mm⌄
Day≈72–83°
Night≈60–71°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
80°67°20%⌄
Day≈74–85°
Night≈62–72°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
86°71°20%⌄
Day≈81–92°
Night≈65–76°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
85°70°9.5 mm⌄
Day≈80–91°
Night≈65–76°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
85°70°20%⌄
Day≈80–90°
Night≈65–75°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
80°67°20%⌄
Day≈74–85°
Night≈62–72°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
78°66°13.4 mm⌄
Day≈73–84°
Night≈61–71°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
77°65°20%⌄
Day≈71–82°
Night≈60–71°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
82°68°20%⌄
Day≈77–88°
Night≈63–74°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Rain (climatological)
83°69°14.1 mm⌄
Day≈77–88°
Night≈63–74°
Precip≈4.2 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 Southport, 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.