Crystal City · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Crystal City & 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
100°
Mon, Aug 31
Coldest night
60°
Mon, Aug 24
Days with precip
7 / 14
of 14 forecast days
Nicest day
Fri, Aug 28
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
94° 66°
68% precip chance
Sat 5 – Sun 6 Sep
93° 71°
65% precip chance
Sat 12 – Sun 13 Sep
83° 59°
typical range
Sat 19 – Sun 20 Sep
83° 60°
typical range
30 days — Crystal City
14 forecast + 16 climatology
Mon · Today Sunny
88°60°0.2 mm⌄
Wind8 mph E
Gusts19 mph
UV index9 – Very high
Precip chance17%
Sunrise06:24
Sunset19:43
Tue · Tomorrow Mostly cloudy
88°64°1.0 mm⌄
Wind9 mph E
Gusts18 mph
UV index9 – Very high
Precip chance46%
Sunrise06:25
Sunset19:42
Wednesday 26/8 Mostly cloudy
91°67°4.1 mm⌄
Wind13 mph NE
Gusts33 mph
UV index9 – Very high
Precip chance66%
Sunrise06:26
Sunset19:40
Thursday 27/8 Fog
88°66°0.6 mm⌄
Wind7 mph N
Gusts14 mph
UV index8 – Very high
Precip chance36%
Sunrise06:26
Sunset19:39
Friday 28/8 Sunny
89°66°4%⌄
Wind8 mph E
Gusts19 mph
UV index8 – Very high
Precip chance4%
Sunrise06:27
Sunset19:37
Saturday 29/8 Partly cloudy
94°66°0.6 mm⌄
Wind11 mph S
Gusts25 mph
UV index8 – Very high
Precip chance36%
Sunrise06:28
Sunset19:36
Sunday 30/8 Showers
86°69°1.5 mm⌄
Wind10 mph SW
Gusts29 mph
UV index7 – High
Precip chance68%
Sunrise06:29
Sunset19:34
Monday 31/8 Mostly cloudy
100°73°0.3 mm⌄
Wind12 mph W
Gusts28 mph
UV index9 – Very high
Precip chance21%
Sunrise06:30
Sunset19:33
Tuesday 1/9 Sunny
99°71°5%⌄
Wind7 mph S
Gusts30 mph
UV index9 – Very high
Precip chance5%
Sunrise06:31
Sunset19:31
Wednesday 2/9 Mostly cloudy
92°73°3.1 mm⌄
Wind10 mph NW
Gusts28 mph
UV index7 – High
Precip chance68%
Sunrise06:32
Sunset19:30
Thursday 3/9 Fog
93°72°3.0 mm⌄
Wind11 mph E
Gusts23 mph
UV index8 – Very high
Precip chance65%
Sunrise06:32
Sunset19:28
Friday 4/9 Showers
96°71°4.8 mm⌄
Wind12 mph W
Gusts27 mph
UV index9 – Very high
Precip chance73%
Sunrise06:33
Sunset19:27
Saturday 5/9 Showers
90°72°1.0 mm⌄
Wind8 mph SE
Gusts24 mph
UV index7 – High
Precip chance65%
Sunrise06:34
Sunset19:25
Sunday 6/9 Mostly cloudy
93°71°1.1 mm⌄
Wind12 mph S
Gusts31 mph
UV index8 – Very high
Precip chance57%
Sunrise06:35
Sunset19:24
Monday 7/9 Rain (climatological)
86°63°2.9 mm⌄
Day≈81–91°
Night≈58–69°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
89°65°20%⌄
Day≈83–94°
Night≈60–70°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
90°66°20%⌄
Day≈85–96°
Night≈61–71°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Rain (climatological)
89°65°4.6 mm⌄
Day≈84–95°
Night≈60–71°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
85°63°20%⌄
Day≈80–91°
Night≈57–68°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
79°59°20%⌄
Day≈73–84°
Night≈54–64°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
83°62°2.5 mm⌄
Day≈78–88°
Night≈56–67°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
87°64°20%⌄
Day≈82–93°
Night≈59–70°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
91°66°20%⌄
Day≈85–96°
Night≈61–71°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
92°67°3.2 mm⌄
Day≈87–97°
Night≈62–72°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
90°65°20%⌄
Day≈84–95°
Night≈60–71°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
84°62°20%⌄
Day≈79–90°
Night≈57–68°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
83°62°3.4 mm⌄
Day≈78–89°
Night≈56–67°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
81°60°20%⌄
Day≈75–86°
Night≈55–66°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
87°64°20%⌄
Day≈82–93°
Night≈59–70°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
90°66°3.4 mm⌄
Day≈85–96°
Night≈61–71°
Precip≈1.8 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 Crystal City, 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.