Green Valley · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Green Valley & 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
44°
Thu, Aug 27
Coldest night
19°
Sun, Sep 6
Days with precip
11 / 14
of 14 forecast days
Nicest day
Sat, Sep 5
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
36° 20°
72% precip chance
Sat 5 – Sun 6 Sep
32° 19°
79% precip chance
Sat 12 – Sun 13 Sep
32° 20°
typical range
Sat 19 – Sun 20 Sep
32° 19°
typical range
30 days — Green Valley
14 forecast + 16 climatology
Thu · Today Sunny
44°26°12.2 mm⌄
Wind22 mph E
Gusts27 mph
UV index11 – Very high
Precip chance57%
Sunrise05:56
Sunset18:54
Fri · Tomorrow Sunny
37°26°8.2 mm⌄
Wind9 mph NE
Gusts16 mph
UV index9 – Very high
Precip chance57%
Sunrise05:57
Sunset18:53
Saturday 29/8 Showers
36°20°26.3 mm⌄
Wind12 mph NE
Gusts21 mph
UV index9 – Very high
Precip chance72%
Sunrise05:57
Sunset18:52
Sunday 30/8 Showers
33°21°3.4 mm⌄
Wind21 mph S
Gusts27 mph
UV index8 – Very high
Precip chance59%
Sunrise05:58
Sunset18:50
Monday 31/8 Showers
31°20°2.9 mm⌄
Wind14 mph S
Gusts22 mph
UV index8 – Very high
Precip chance57%
Sunrise05:58
Sunset18:49
Tuesday 1/9 Sunny
31°22°1.6 mm⌄
Wind7 mph E
Gusts17 mph
UV index8 – Very high
Precip chance57%
Sunrise05:59
Sunset18:48
Wednesday 2/9 Sunny
32°22°1.9 mm⌄
Wind6 mph SE
Gusts17 mph
UV index8 – Very high
Precip chance57%
Sunrise06:00
Sunset18:47
Thursday 3/9 Partly cloudy
32°22°17%⌄
Wind10 mph W
Gusts19 mph
UV index8 – Very high
Precip chance17%
Sunrise06:00
Sunset18:45
Friday 4/9 Sunny
32°19°12.6 mm⌄
Wind18 mph E
Gusts22 mph
UV index8 – Very high
Precip chance69%
Sunrise06:01
Sunset18:44
Saturday 5/9 Partly cloudy
32°21°17%⌄
Wind8 mph N
Gusts17 mph
UV index8 – Very high
Precip chance17%
Sunrise06:01
Sunset18:43
Sunday 6/9 Showers
31°19°46.8 mm⌄
Wind12 mph N
Gusts21 mph
UV index8 – Very high
Precip chance79%
Sunrise06:02
Sunset18:42
Monday 7/9 Showers
25°20°7.3 mm⌄
Wind15 mph S
Gusts17 mph
UV index5 – Moderate
Precip chance83%
Sunrise06:03
Sunset18:40
Tuesday 8/9 Showers
27°19°0.5 mm⌄
Wind20 mph S
Gusts27 mph
UV index7 – High
Precip chance36%
Sunrise06:03
Sunset18:39
Wednesday 9/9 Showers
28°21°1.5 mm⌄
Wind13 mph SW
Gusts18 mph
UV index6 – High
Precip chance57%
Sunrise06:04
Sunset18:38
Thursday 10/9 Rain (climatological)
29°19°16.3 mm⌄
Day≈26–32°
Night≈16–22°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
32°20°20%⌄
Day≈29–35°
Night≈17–23°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
32°21°20%⌄
Day≈29–35°
Night≈18–24°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
32°20°19.0 mm⌄
Day≈29–35°
Night≈17–23°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
30°19°20%⌄
Day≈27–33°
Night≈16–22°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
27°17°20%⌄
Day≈24–30°
Night≈14–20°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
29°19°29.9 mm⌄
Day≈26–32°
Night≈16–22°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
30°20°20%⌄
Day≈27–33°
Night≈17–23°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
31°20°20%⌄
Day≈28–34°
Night≈17–23°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
32°21°29.9 mm⌄
Day≈29–35°
Night≈18–24°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
30°19°20%⌄
Day≈27–33°
Night≈16–22°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
28°18°20%⌄
Day≈25–31°
Night≈15–21°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
28°18°36.3 mm⌄
Day≈25–31°
Night≈15–21°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
28°18°20%⌄
Day≈25–31°
Night≈15–21°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
28°18°20%⌄
Day≈25–31°
Night≈15–21°
Precip≈10.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
31°20°22.7 mm⌄
Day≈28–34°
Night≈17–23°
Precip≈10.7 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 Green Valley, 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.