Zion · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Zion & 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
90°
Wed, Sep 2
Coldest night
46°
Fri, Sep 11
Days with precip
6 / 14
of 14 forecast days
Nicest day
Sat, Aug 29
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
82° 52°
9% precip chance
Sat 5 – Sun 6 Sep
80° 60°
62% precip chance
Sat 12 – Sun 13 Sep
71° 52°
typical range
Sat 19 – Sun 20 Sep
73° 54°
typical range
30 days — Zion
14 forecast + 16 climatology
Sat · Today Sunny
76°52°5%⌄
Wind5 mph S
Gusts14 mph
UV index8 – High
Precip chance5%
Sunrise06:34
Sunset19:48
Sun · Tomorrow Sunny
82°61°9%⌄
Wind9 mph W
Gusts15 mph
UV index8 – High
Precip chance9%
Sunrise06:35
Sunset19:47
Monday 31/8 Mostly cloudy
82°67°0.3 mm⌄
Wind10 mph W
Gusts19 mph
UV index4 – Moderate
Precip chance37%
Sunrise06:36
Sunset19:45
Tuesday 1/9 Mostly cloudy
84°68°1.9 mm⌄
Wind10 mph W
Gusts28 mph
UV index5 – Moderate
Precip chance70%
Sunrise06:37
Sunset19:43
Wednesday 2/9 Sunny
90°72°0.9 mm⌄
Wind11 mph W
Gusts18 mph
UV index8 – Very high
Precip chance50%
Sunrise06:38
Sunset19:42
Thursday 3/9 Showers
80°65°9.7 mm⌄
Wind11 mph NW
Gusts16 mph
UV index7 – High
Precip chance82%
Sunrise06:39
Sunset19:40
Friday 4/9 Mostly cloudy
78°60°12%⌄
Wind8 mph NW
Gusts14 mph
UV index6 – High
Precip chance12%
Sunrise06:40
Sunset19:38
Saturday 5/9 Sunny
80°60°7%⌄
Wind6 mph N
Gusts13 mph
UV index7 – High
Precip chance7%
Sunrise06:41
Sunset19:37
Sunday 6/9 Partly cloudy
80°61°1.3 mm⌄
Wind6 mph W
Gusts11 mph
UV index6 – High
Precip chance62%
Sunrise06:42
Sunset19:35
Monday 7/9 Mostly cloudy
86°66°1.4 mm⌄
Wind12 mph NW
Gusts27 mph
UV index7 – High
Precip chance65%
Sunrise06:43
Sunset19:33
Tuesday 8/9 Mostly cloudy
72°55°8%⌄
Wind13 mph NW
Gusts25 mph
UV index6 – High
Precip chance8%
Sunrise06:44
Sunset19:32
Wednesday 9/9 Mostly cloudy
59°53°5.7 mm⌄
Wind4 mph W
Gusts13 mph
UV index4 – Moderate
Precip chance80%
Sunrise06:45
Sunset19:30
Thursday 10/9 Mostly cloudy
66°50°1.3 mm⌄
Wind11 mph NW
Gusts16 mph
UV index5 – Moderate
Precip chance62%
Sunrise06:46
Sunset19:28
Friday 11/9 Sunny
64°46°6%⌄
Wind5 mph N
Gusts12 mph
UV index5 – Moderate
Precip chance6%
Sunrise06:47
Sunset19:27
Saturday 12/9 Rain (climatological)
68°52°3.9 mm⌄
Day≈62–73°
Night≈46–57°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
71°54°20%⌄
Day≈66–76°
Night≈49–59°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
76°57°20%⌄
Day≈71–82°
Night≈52–62°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
73°55°6.2 mm⌄
Day≈67–78°
Night≈50–60°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
65°50°20%⌄
Day≈60–71°
Night≈45–56°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
66°51°20%⌄
Day≈61–71°
Night≈46–56°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
68°52°3.1 mm⌄
Day≈63–74°
Night≈47–58°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
71°54°20%⌄
Day≈65–76°
Night≈48–59°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
73°55°20%⌄
Day≈68–79°
Night≈50–61°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
71°54°5.7 mm⌄
Day≈66–77°
Night≈49–60°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
72°54°20%⌄
Day≈66–77°
Night≈49–60°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
69°53°20%⌄
Day≈64–75°
Night≈47–58°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
65°50°2.8 mm⌄
Day≈60–70°
Night≈45–56°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
67°51°20%⌄
Day≈62–72°
Night≈46–57°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
67°52°20%⌄
Day≈62–73°
Night≈46–57°
Precip≈1.9 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Rain (climatological)
74°56°3.3 mm⌄
Day≈69–80°
Night≈50–61°
Precip≈1.9 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 Zion, 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.