Gap · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Gap & 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
32°
Wed, Sep 2
Coldest night
11°
Wed, Sep 9
Days with precip
10 / 14
of 14 forecast days
Nicest day
Sun, Sep 6
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
28° 18°
17% precip chance
Sat 5 – Sun 6 Sep
24° 13°
79% precip chance
Sat 12 – Sun 13 Sep
25° 16°
typical range
Sat 19 – Sun 20 Sep
26° 15°
typical range
30 days — Gap
14 forecast + 16 climatology
Thu · Today Sunny
31°18°10.4 mm⌄
Wind13 mph SE
Gusts29 mph
UV index7 – High
Precip chance80%
Sunrise06:27
Sunset19:43
Fri · Tomorrow Mostly cloudy
28°18°1.2 mm⌄
Wind9 mph W
Gusts15 mph
UV index7 – High
Precip chance57%
Sunrise06:28
Sunset19:42
Saturday 29/8 Mostly cloudy
25°18°13%⌄
Wind7 mph NE
Gusts14 mph
UV index5 – Moderate
Precip chance13%
Sunrise06:29
Sunset19:40
Sunday 30/8 Sunny
28°18°17%⌄
Wind11 mph SW
Gusts28 mph
UV index7 – High
Precip chance17%
Sunrise06:30
Sunset19:39
Monday 31/8 Showers
28°21°2.1 mm⌄
Wind11 mph NW
Gusts26 mph
UV index6 – High
Precip chance75%
Sunrise06:31
Sunset19:37
Tuesday 1/9 Showers
30°21°3.9 mm⌄
Wind9 mph W
Gusts21 mph
UV index7 – High
Precip chance78%
Sunrise06:32
Sunset19:36
Wednesday 2/9 Fog
32°21°3.9 mm⌄
Wind10 mph NE
Gusts23 mph
UV index7 – High
Precip chance81%
Sunrise06:32
Sunset19:34
Thursday 3/9 Thunderstorms
29°21°2.7 mm⌄
Wind14 mph NW
Gusts27 mph
UV index7 – High
Precip chance75%
Sunrise06:33
Sunset19:33
Friday 4/9 Showers
27°21°6.7 mm⌄
Wind7 mph SE
Gusts16 mph
UV index6 – High
Precip chance88%
Sunrise06:34
Sunset19:31
Saturday 5/9 Showers
21°17°6.1 mm⌄
Wind10 mph NE
Gusts20 mph
UV index6 – High
Precip chance79%
Sunrise06:35
Sunset19:29
Sunday 6/9 Sunny
24°13°7%⌄
Wind9 mph E
Gusts20 mph
UV index6 – High
Precip chance7%
Sunrise06:36
Sunset19:28
Monday 7/9 Mostly cloudy
24°15°1.7 mm⌄
Wind10 mph S
Gusts25 mph
UV index6 – High
Precip chance60%
Sunrise06:37
Sunset19:26
Tuesday 8/9 Mostly cloudy
24°17°0.4 mm⌄
Wind8 mph NW
Gusts21 mph
UV index6 – High
Precip chance42%
Sunrise06:38
Sunset19:24
Wednesday 9/9 Showers
20°11°14.5 mm⌄
Wind16 mph NW
Gusts35 mph
UV index4 – Moderate
Precip chance92%
Sunrise06:39
Sunset19:23
Thursday 10/9 Rain (climatological)
21°14°14.4 mm⌄
Day≈18–24°
Night≈11–17°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
26°16°20%⌄
Day≈23–29°
Night≈13–19°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
25°16°20%⌄
Day≈22–28°
Night≈13–19°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
25°16°15.2 mm⌄
Day≈22–28°
Night≈13–19°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
22°14°20%⌄
Day≈19–25°
Night≈11–17°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
20°13°20%⌄
Day≈17–23°
Night≈10–16°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
21°13°10.5 mm⌄
Day≈18–24°
Night≈10–16°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
22°14°20%⌄
Day≈19–25°
Night≈11–17°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
24°15°20%⌄
Day≈21–27°
Night≈12–18°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
26°17°10.5 mm⌄
Day≈23–29°
Night≈14–20°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
23°15°20%⌄
Day≈20–26°
Night≈12–18°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
21°13°20%⌄
Day≈18–24°
Night≈10–16°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
21°13°9.0 mm⌄
Day≈18–24°
Night≈10–16°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
20°13°20%⌄
Day≈17–23°
Night≈10–16°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
22°14°20%⌄
Day≈19–25°
Night≈11–17°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
24°15°8.2 mm⌄
Day≈21–27°
Night≈12–18°
Precip≈4.6 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 Gap, 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.