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
82°
Mon, Aug 31
Coldest night
58°
Fri, Aug 21
Days with precip
6 / 14
of 14 forecast days
Nicest day
Sun, Aug 23
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
76° 60°
75% precip chance
Sat 29 – Sun 30 Aug
79° 67°
80% precip chance
Sat 5 – Sun 6 Sep
72° 60°
typical range
Sat 12 – Sun 13 Sep
71° 59°
typical range
30 days — Zion
14 forecast + 16 climatology
Fri · Today Sunny
78°58°72.3 mm⌄
Wind9 mph S
Gusts15 mph
UV index6 – Moderate
Precip chance77%
Sunrise06:04
Sunset19:44
Sat · Tomorrow Sunny
76°60°239.2 mm⌄
Wind17 mph NE
Gusts28 mph
UV index7 – High
Precip chance75%
Sunrise06:05
Sunset19:42
Sunday 23/8 Sunny
69°60°6%⌄
Wind16 mph NE
Gusts21 mph
UV index7 – High
Precip chance6%
Sunrise06:07
Sunset19:40
Monday 24/8 Mostly cloudy
71°60°0.8 mm⌄
Wind9 mph SE
Gusts16 mph
UV index8 – High
Precip chance45%
Sunrise06:08
Sunset19:39
Tuesday 25/8 Mostly cloudy
72°66°14%⌄
Wind12 mph S
Gusts21 mph
UV index6 – High
Precip chance14%
Sunrise06:09
Sunset19:37
Wednesday 26/8 Sunny
78°65°3.0 mm⌄
Wind15 mph SW
Gusts27 mph
UV index7 – High
Precip chance68%
Sunrise06:10
Sunset19:36
Thursday 27/8 Sunny
74°65°7%⌄
Wind13 mph W
Gusts26 mph
UV index6 – High
Precip chance7%
Sunrise06:11
Sunset19:34
Friday 28/8 Mostly cloudy
73°69°14%⌄
Wind9 mph SE
Gusts13 mph
UV index5 – Moderate
Precip chance14%
Sunrise06:12
Sunset19:32
Saturday 29/8 Showers
79°67°7.3 mm⌄
Wind14 mph S
Gusts25 mph
UV index7 – High
Precip chance80%
Sunrise06:13
Sunset19:31
Sunday 30/8 Partly cloudy
78°72°0.2 mm⌄
Wind11 mph SE
Gusts26 mph
UV index6 – High
Precip chance39%
Sunrise06:14
Sunset19:29
Monday 31/8 Showers
82°69°1.7 mm⌄
Wind14 mph E
Gusts23 mph
UV index7 – High
Precip chance68%
Sunrise06:15
Sunset19:27
Tuesday 1/9 Mostly cloudy
80°69°1.2 mm⌄
Wind13 mph S
Gusts28 mph
UV index6 – High
Precip chance62%
Sunrise06:16
Sunset19:26
Wednesday 2/9 Sunny
72°62°6%⌄
Wind18 mph NE
Gusts31 mph
UV index5 – Moderate
Precip chance6%
Sunrise06:17
Sunset19:24
Thursday 3/9 Mostly cloudy
62°60°0.3 mm⌄
Wind14 mph NE
Gusts17 mph
UV index4 – Moderate
Precip chance36%
Sunrise06:18
Sunset19:22
Friday 4/9 Rain (climatological)
67°58°35.0 mm⌄
Day≈62–73°
Night≈52–63°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Partly cloudy (climatological)
72°60°20%⌄
Day≈67–77°
Night≈55–66°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
71°60°20%⌄
Day≈66–77°
Night≈55–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Rain (climatological)
68°58°22.0 mm⌄
Day≈63–73°
Night≈53–64°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
64°55°20%⌄
Day≈58–69°
Night≈50–61°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
62°55°20%⌄
Day≈57–68°
Night≈49–60°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Rain (climatological)
62°55°19.0 mm⌄
Day≈57–68°
Night≈49–60°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
67°58°20%⌄
Day≈62–73°
Night≈52–63°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
71°60°20%⌄
Day≈66–76°
Night≈55–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
70°59°20.0 mm⌄
Day≈64–75°
Night≈54–64°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
67°57°20%⌄
Day≈62–72°
Night≈52–63°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
65°56°20%⌄
Day≈60–71°
Night≈51–62°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
60°53°20.0 mm⌄
Day≈55–66°
Night≈48–59°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
61°54°20%⌄
Day≈56–66°
Night≈49–59°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
67°57°20%⌄
Day≈61–72°
Night≈52–63°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
68°58°17.0 mm⌄
Day≈62–73°
Night≈53–63°
Precip≈11.8 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.