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
87°
Thu, Aug 20
Coldest night
58°
Mon, Aug 24
Days with precip
7 / 14
of 14 forecast days
Nicest day
Wed, Sep 2
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
76° 63°
87% precip chance
Sat 29 – Sun 30 Aug
81° 68°
86% precip chance
Sat 5 – Sun 6 Sep
75° 61°
typical range
Sat 12 – Sun 13 Sep
78° 59°
typical range
30 days — Gap
14 forecast + 16 climatology
Thu · Today Sunny
87°65°9.7 mm⌄
Wind17 mph N
Gusts32 mph
UV index8 – High
Precip chance76%
Sunrise06:20
Sunset19:54
Fri · Tomorrow Showers
76°59°0.9 mm⌄
Wind9 mph N
Gusts23 mph
UV index8 – High
Precip chance56%
Sunrise06:21
Sunset19:52
Saturday 22/8 Fog
68°63°3.3 mm⌄
Wind10 mph SE
Gusts18 mph
UV index1 – Low
Precip chance87%
Sunrise06:22
Sunset19:51
Sunday 23/8 Sunny
76°64°0.3 mm⌄
Wind12 mph W
Gusts25 mph
UV index6 – High
Precip chance27%
Sunrise06:23
Sunset19:49
Monday 24/8 Sunny
76°58°5%⌄
Wind10 mph W
Gusts25 mph
UV index8 – High
Precip chance5%
Sunrise06:24
Sunset19:48
Tuesday 25/8 Mostly cloudy
76°62°7%⌄
Wind7 mph NW
Gusts13 mph
UV index6 – High
Precip chance7%
Sunrise06:25
Sunset19:46
Wednesday 26/8 Sunny
79°62°7%⌄
Wind6 mph SE
Gusts9 mph
UV index6 – High
Precip chance7%
Sunrise06:26
Sunset19:45
Thursday 27/8 Fog
70°66°5.8 mm⌄
Wind7 mph SE
Gusts12 mph
UV index5 – Moderate
Precip chance91%
Sunrise06:27
Sunset19:43
Friday 28/8 Showers
80°68°0.7 mm⌄
Wind5 mph N
Gusts9 mph
UV index6 – High
Precip chance55%
Sunrise06:28
Sunset19:42
Saturday 29/8 Showers
81°68°2.0 mm⌄
Wind7 mph NE
Gusts12 mph
UV index7 – High
Precip chance68%
Sunrise06:29
Sunset19:40
Sunday 30/8 Showers
81°68°15.6 mm⌄
Wind10 mph S
Gusts20 mph
UV index6 – High
Precip chance86%
Sunrise06:30
Sunset19:39
Monday 31/8 Fog
83°70°3.3 mm⌄
Wind12 mph S
Gusts31 mph
UV index6 – High
Precip chance79%
Sunrise06:31
Sunset19:37
Tuesday 1/9 Showers
84°72°1.1 mm⌄
Wind16 mph SW
Gusts27 mph
UV index6 – High
Precip chance65%
Sunrise06:32
Sunset19:36
Wednesday 2/9 Sunny
74°60°5%⌄
Wind9 mph N
Gusts20 mph
UV index6 – High
Precip chance5%
Sunrise06:32
Sunset19:34
Thursday 3/9 Rain (climatological)
68°57°11.5 mm⌄
Day≈63–74°
Night≈51–62°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Partly cloudy (climatological)
76°62°20%⌄
Day≈71–82°
Night≈56–67°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Partly cloudy (climatological)
75°61°20%⌄
Day≈70–81°
Night≈56–67°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Rain (climatological)
75°61°12.1 mm⌄
Day≈69–80°
Night≈55–66°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
70°58°20%⌄
Day≈65–75°
Night≈53–63°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
66°55°20%⌄
Day≈60–71°
Night≈50–61°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Rain (climatological)
67°56°8.4 mm⌄
Day≈62–73°
Night≈51–62°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
70°58°20%⌄
Day≈65–75°
Night≈53–63°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
73°60°20%⌄
Day≈68–79°
Night≈55–65°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
78°62°8.4 mm⌄
Day≈72–83°
Night≈57–68°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
71°59°20%⌄
Day≈66–77°
Night≈53–64°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
68°56°20%⌄
Day≈62–73°
Night≈51–62°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
68°56°7.1 mm⌄
Day≈62–73°
Night≈51–62°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
65°55°20%⌄
Day≈60–71°
Night≈50–60°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
69°57°20%⌄
Day≈64–75°
Night≈52–63°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
73°60°6.5 mm⌄
Day≈68–78°
Night≈54–65°
Precip≈3.7 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.