Sanibel · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Sanibel & 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
91°
Fri, Aug 21
Coldest night
77°
Fri, Aug 21
Days with precip
7 / 14
of 14 forecast days
Nicest day
Thu, Sep 3
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
88° 80°
43% precip chance
Sat 29 – Sun 30 Aug
89° 79°
72% precip chance
Sat 5 – Sun 6 Sep
91° 82°
typical range
Sat 12 – Sun 13 Sep
90° 82°
typical range
30 days — Sanibel
14 forecast + 16 climatology
Fri · Today Sunny
91°77°11%⌄
Wind13 mph W
Gusts24 mph
UV index10 – Very high
Precip chance11%
Sunrise07:03
Sunset19:59
Sat · Tomorrow Sunny
88°84°6%⌄
Wind12 mph W
Gusts22 mph
UV index11 – Very high
Precip chance6%
Sunrise07:03
Sunset19:58
Sunday 23/8 Mostly cloudy
87°80°0.8 mm⌄
Wind13 mph NW
Gusts20 mph
UV index11 – Very high
Precip chance43%
Sunrise07:04
Sunset19:57
Monday 24/8 Sunny
90°80°4.5 mm⌄
Wind23 mph SE
Gusts23 mph
UV index11 – Very high
Precip chance65%
Sunrise07:04
Sunset19:56
Tuesday 25/8 Sunny
90°80°9.5 mm⌄
Wind17 mph SE
Gusts23 mph
UV index8 – Very high
Precip chance69%
Sunrise07:04
Sunset19:55
Wednesday 26/8 Sunny
88°80°3.2 mm⌄
Wind11 mph W
Gusts22 mph
UV index8 – Very high
Precip chance57%
Sunrise07:05
Sunset19:54
Thursday 27/8 Mostly cloudy
88°83°0.7 mm⌄
Wind11 mph W
Gusts22 mph
UV index8 – Very high
Precip chance39%
Sunrise07:05
Sunset19:53
Friday 28/8 Mostly cloudy
88°82°3.9 mm⌄
Wind11 mph NW
Gusts20 mph
UV index7 – High
Precip chance69%
Sunrise07:06
Sunset19:52
Saturday 29/8 Mostly cloudy
89°79°3.6 mm⌄
Wind13 mph W
Gusts21 mph
UV index7 – High
Precip chance72%
Sunrise07:06
Sunset19:51
Sunday 30/8 Mostly cloudy
87°79°7.9 mm⌄
Wind11 mph NW
Gusts22 mph
UV index8 – Very high
Precip chance72%
Sunrise07:07
Sunset19:50
Monday 31/8 Sunny
87°82°5.3 mm⌄
Wind12 mph W
Gusts23 mph
UV index8 – Very high
Precip chance62%
Sunrise07:07
Sunset19:49
Tuesday 1/9 Sunny
87°83°17%⌄
Wind12 mph W
Gusts19 mph
UV index8 – Very high
Precip chance17%
Sunrise07:07
Sunset19:48
Wednesday 2/9 Sunny
87°84°7%⌄
Wind13 mph W
Gusts22 mph
UV index8 – Very high
Precip chance7%
Sunrise07:08
Sunset19:47
Thursday 3/9 Sunny
88°84°6%⌄
Wind10 mph W
Gusts21 mph
UV index8 – Very high
Precip chance6%
Sunrise07:08
Sunset19:46
Friday 4/9 Rain (climatological)
87°80°6.3 mm⌄
Day≈81–92°
Night≈75–85°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Partly cloudy (climatological)
91°82°20%⌄
Day≈85–96°
Night≈77–88°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
90°82°20%⌄
Day≈85–96°
Night≈77–88°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Rain (climatological)
88°81°9.2 mm⌄
Day≈83–94°
Night≈76–87°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
82°77°20%⌄
Day≈76–87°
Night≈72–83°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
82°78°20%⌄
Day≈77–88°
Night≈72–83°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Rain (climatological)
85°79°7.2 mm⌄
Day≈80–90°
Night≈74–85°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
88°81°20%⌄
Day≈82–93°
Night≈75–86°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
90°82°20%⌄
Day≈85–95°
Night≈77–87°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
90°82°10.0 mm⌄
Day≈85–96°
Night≈77–88°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
90°82°20%⌄
Day≈85–95°
Night≈77–87°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
86°80°20%⌄
Day≈81–91°
Night≈74–85°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
81°77°6.3 mm⌄
Day≈76–86°
Night≈71–82°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
85°79°20%⌄
Day≈80–91°
Night≈74–85°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
87°80°20%⌄
Day≈81–92°
Night≈75–85°
Precip≈3.4 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
90°82°6.9 mm⌄
Day≈85–95°
Night≈77–87°
Precip≈3.4 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 Sanibel, 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.