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
75°
Tue, Sep 15
Coldest night
41°
Sat, Sep 12
Days with precip
5 / 14
of 14 forecast days
Nicest day
Wed, Sep 16
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
63° 53°
88% precip chance
Sat 12 – Sun 13 Sep
65° 41°
6% precip chance
Sat 19 – Sun 20 Sep
69° 52°
typical range
Sat 26 – Sun 27 Sep
67° 52°
typical range
30 days — Valley Waters
14 forecast + 16 climatology
Fri · Today Rain
66°58°80.5 mm⌄
Wind10 mph SE
Gusts27 mph
UV index2 – Low
Precip chance92%
Sunrise06:48
Sunset19:56
Sat · Tomorrow Showers
60°55°6.9 mm⌄
Wind16 mph N
Gusts34 mph
UV index4 – Moderate
Precip chance88%
Sunrise06:49
Sunset19:54
Sunday 6/9 Showers
63°53°6.0 mm⌄
Wind16 mph N
Gusts34 mph
UV index2 – Low
Precip chance78%
Sunrise06:50
Sunset19:52
Monday 7/9 Sunny
69°48°7%⌄
Wind11 mph N
Gusts28 mph
UV index6 – High
Precip chance7%
Sunrise06:52
Sunset19:50
Tuesday 8/9 Mostly cloudy
63°48°0.7 mm⌄
Wind16 mph NW
Gusts30 mph
UV index5 – Moderate
Precip chance47%
Sunrise06:53
Sunset19:48
Wednesday 9/9 Sunny
61°46°9%⌄
Wind8 mph S
Gusts15 mph
UV index5 – Moderate
Precip chance9%
Sunrise06:54
Sunset19:46
Thursday 10/9 Mostly cloudy
60°50°13.3 mm⌄
Wind18 mph S
Gusts39 mph
UV index4 – Moderate
Precip chance90%
Sunrise06:55
Sunset19:44
Friday 11/9 Sunny
60°44°3.0 mm⌄
Wind21 mph N
Gusts40 mph
UV index4 – Moderate
Precip chance57%
Sunrise06:57
Sunset19:42
Saturday 12/9 Sunny
60°41°4%⌄
Wind11 mph NW
Gusts21 mph
UV index5 – Moderate
Precip chance4%
Sunrise06:58
Sunset19:40
Sunday 13/9 Sunny
65°45°6%⌄
Wind11 mph NW
Gusts25 mph
UV index5 – Moderate
Precip chance6%
Sunrise06:59
Sunset19:39
Monday 14/9 Sunny
64°51°0.1 mm⌄
Wind8 mph SW
Gusts20 mph
UV index5 – Moderate
Precip chance17%
Sunrise07:00
Sunset19:37
Tuesday 15/9 Sunny
75°58°0.8 mm⌄
Wind9 mph N
Gusts18 mph
UV index6 – High
Precip chance45%
Sunrise07:01
Sunset19:35
Wednesday 16/9 Sunny
71°55°6%⌄
Wind6 mph SW
Gusts16 mph
UV index6 – High
Precip chance6%
Sunrise07:03
Sunset19:33
Thursday 17/9 Sunny
68°56°11%⌄
Wind10 mph SW
Gusts25 mph
UV index5 – Moderate
Precip chance11%
Sunrise07:04
Sunset19:31
Friday 18/9 Rain (climatological)
66°51°32.1 mm⌄
Day≈61–72°
Night≈46–57°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
69°53°20%⌄
Day≈64–74°
Night≈48–58°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
67°52°20%⌄
Day≈62–73°
Night≈47–58°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
69°53°20.9 mm⌄
Day≈64–75°
Night≈48–59°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
63°49°20%⌄
Day≈57–68°
Night≈44–55°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
61°48°20%⌄
Day≈56–67°
Night≈43–54°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
63°50°20.9 mm⌄
Day≈58–68°
Night≈44–55°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
63°50°20%⌄
Day≈58–69°
Night≈44–55°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
67°52°20%⌄
Day≈62–73°
Night≈47–58°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Rain (climatological)
67°52°24.9 mm⌄
Day≈62–73°
Night≈47–58°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
69°53°20%⌄
Day≈64–74°
Night≈48–58°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
62°49°20%⌄
Day≈57–67°
Night≈44–55°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Rain (climatological)
60°48°16.1 mm⌄
Day≈55–66°
Night≈42–53°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Partly cloudy (climatological)
49°36°20%⌄
Day≈43–54°
Night≈31–41°
Precip≈9.5 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 2/10 Partly cloudy (climatological)
51°37°20%⌄
Day≈45–56°
Night≈32–43°
Precip≈9.5 in / October
(climatological)Typical range for these dates · 1991–2020
Saturday 3/10 Rain (climatological)
55°40°28.1 mm⌄
Day≈50–61°
Night≈35–45°
Precip≈9.5 in / October
(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.