Valley Waters · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Valley Waters & 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
22°
Tue, Sep 1
Coldest night
8°
Wed, Sep 9
Days with precip
8 / 14
of 14 forecast days
Nicest day
Fri, Sep 11
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
16° 12°
89% precip chance
Sat 12 – Sun 13 Sep
22° 11°
81% precip chance
Sat 19 – Sun 20 Sep
17° 10°
typical range
Sat 26 – Sun 27 Sep
16° 10°
typical range
30 days — Valley Waters
14 forecast + 16 climatology
Tue · Today Sunny
22°10°3.3 mm⌄
Wind8 mph E
Gusts20 mph
UV index6 – Moderate
Precip chance61%
Sunrise06:44
Sunset20:01
Wed · Tomorrow Mostly cloudy
19°12°13%⌄
Wind9 mph NE
Gusts21 mph
UV index6 – Moderate
Precip chance13%
Sunrise06:46
Sunset19:59
Thursday 3/9 Mostly cloudy
19°12°4.9 mm⌄
Wind12 mph SE
Gusts28 mph
UV index5 – Moderate
Precip chance87%
Sunrise06:47
Sunset19:58
Friday 4/9 Showers
18°14°10.8 mm⌄
Wind12 mph E
Gusts28 mph
UV index2 – Low
Precip chance93%
Sunrise06:48
Sunset19:56
Saturday 5/9 Showers
16°12°0.7 mm⌄
Wind18 mph N
Gusts35 mph
UV index2 – Low
Precip chance65%
Sunrise06:49
Sunset19:54
Sunday 6/9 Showers
15°12°5.8 mm⌄
Wind19 mph N
Gusts37 mph
UV index3 – Moderate
Precip chance89%
Sunrise06:50
Sunset19:52
Monday 7/9 Showers
16°14°1.3 mm⌄
Wind13 mph NE
Gusts28 mph
UV index4 – Moderate
Precip chance73%
Sunrise06:52
Sunset19:50
Tuesday 8/9 Mostly cloudy
17°11°18%⌄
Wind14 mph S
Gusts33 mph
UV index5 – Moderate
Precip chance18%
Sunrise06:53
Sunset19:48
Wednesday 9/9 Sunny
15°8°21.5 mm⌄
Wind23 mph NW
Gusts42 mph
UV index4 – Moderate
Precip chance76%
Sunrise06:54
Sunset19:46
Thursday 10/9 Sunny
17°9°4%⌄
Wind21 mph W
Gusts45 mph
UV index5 – Moderate
Precip chance4%
Sunrise06:55
Sunset19:44
Friday 11/9 Sunny
19°9°6%⌄
Wind11 mph NW
Gusts27 mph
UV index5 – Moderate
Precip chance6%
Sunrise06:57
Sunset19:42
Saturday 12/9 Fog
16°11°2.8 mm⌄
Wind13 mph S
Gusts32 mph
UV index4 – Moderate
Precip chance81%
Sunrise06:58
Sunset19:40
Sunday 13/9 Mostly cloudy
22°14°23%⌄
Wind14 mph W
Gusts28 mph
UV index6 – High
Precip chance23%
Sunrise06:59
Sunset19:39
Monday 14/9 Mostly cloudy
17°13°17%⌄
Wind10 mph W
Gusts22 mph
UV index4 – Moderate
Precip chance17%
Sunrise07:00
Sunset19:37
Tuesday 15/9 Rain (climatological)
19°12°14.8 mm⌄
Day≈16–22°
Night≈9–15°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
20°13°20%⌄
Day≈17–23°
Night≈10–16°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
19°12°20%⌄
Day≈16–22°
Night≈9–15°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
20°13°9.6 mm⌄
Day≈17–23°
Night≈10–16°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
17°11°20%⌄
Day≈14–20°
Night≈8–14°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
16°10°20%⌄
Day≈13–19°
Night≈7–13°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
17°11°9.6 mm⌄
Day≈14–20°
Night≈8–14°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
17°11°20%⌄
Day≈14–20°
Night≈8–14°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
19°12°20%⌄
Day≈16–22°
Night≈9–15°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
19°12°11.5 mm⌄
Day≈16–22°
Night≈9–15°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
20°13°20%⌄
Day≈17–23°
Night≈10–16°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
16°11°20%⌄
Day≈13–19°
Night≈8–14°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Rain (climatological)
15°10°7.4 mm⌄
Day≈12–18°
Night≈7–13°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
17°11°20%⌄
Day≈14–20°
Night≈8–14°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
18°12°20%⌄
Day≈15–21°
Night≈9–15°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Rain (climatological)
21°13°13.0 mm⌄
Day≈18–24°
Night≈10–16°
Precip≈4.4 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 Valley Waters, 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.