Spring Valley · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Spring 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
86°
Thu, Aug 27
Coldest night
58°
Tue, Sep 1
Days with precip
10 / 14
of 14 forecast days
Nicest day
Tue, Sep 1
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
85° 67°
84% precip chance
Sat 5 – Sun 6 Sep
80° 58°
typical range
Sat 12 – Sun 13 Sep
71° 57°
typical range
Sat 19 – Sun 20 Sep
73° 57°
typical range
30 days — Spring Valley
14 forecast + 16 climatology
Sun · Today Showers
82°66°53.6 mm⌄
Wind13 mph SW
Gusts20 mph
UV index7 – High
Precip chance87%
Sunrise06:13
Sunset19:43
Mon · Tomorrow Sunny
81°59°9.1 mm⌄
Wind15 mph W
Gusts24 mph
UV index7 – High
Precip chance61%
Sunrise06:14
Sunset19:42
Tuesday 25/8 Sunny
78°63°4%⌄
Wind13 mph NW
Gusts21 mph
UV index7 – High
Precip chance4%
Sunrise06:15
Sunset19:40
Wednesday 26/8 Sunny
83°62°5%⌄
Wind9 mph NW
Gusts22 mph
UV index7 – High
Precip chance5%
Sunrise06:16
Sunset19:39
Thursday 27/8 Mostly cloudy
86°69°12.8 mm⌄
Wind14 mph S
Gusts22 mph
UV index7 – High
Precip chance79%
Sunrise06:17
Sunset19:37
Friday 28/8 Showers
85°71°4.9 mm⌄
Wind6 mph NW
Gusts8 mph
UV index7 – High
Precip chance74%
Sunrise06:18
Sunset19:35
Saturday 29/8 Showers
85°70°0.4 mm⌄
Wind7 mph N
Gusts8 mph
UV index7 – High
Precip chance36%
Sunrise06:19
Sunset19:34
Sunday 30/8 Showers
85°67°29.7 mm⌄
Wind9 mph S
Gusts13 mph
UV index6 – High
Precip chance84%
Sunrise06:20
Sunset19:32
Monday 31/8 Sunny
80°64°1.4 mm⌄
Wind12 mph NW
Gusts24 mph
UV index7 – High
Precip chance57%
Sunrise06:21
Sunset19:31
Tuesday 1/9 Mostly cloudy
76°58°6%⌄
Wind6 mph SW
Gusts16 mph
UV index6 – High
Precip chance6%
Sunrise06:22
Sunset19:29
Wednesday 2/9 Mostly cloudy
71°62°19.6 mm⌄
Wind9 mph SE
Gusts22 mph
UV index5 – Moderate
Precip chance78%
Sunrise06:23
Sunset19:27
Thursday 3/9 Showers
78°63°15.3 mm⌄
Wind7 mph SE
Gusts19 mph
UV index6 – High
Precip chance91%
Sunrise06:24
Sunset19:26
Friday 4/9 Showers
68°63°12.1 mm⌄
Wind8 mph NE
Gusts19 mph
UV index4 – Moderate
Precip chance93%
Sunrise06:25
Sunset19:24
Saturday 5/9 Mostly cloudy
80°64°1.2 mm⌄
Wind4 mph W
Gusts11 mph
UV index6 – High
Precip chance62%
Sunrise06:26
Sunset19:22
Sunday 6/9 Rain (climatological)
72°58°32.0 mm⌄
Day≈67–78°
Night≈52–63°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
77°60°20%⌄
Day≈72–83°
Night≈55–66°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
76°60°20%⌄
Day≈71–81°
Night≈54–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Rain (climatological)
77°60°17.0 mm⌄
Day≈71–82°
Night≈55–66°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
68°55°20%⌄
Day≈63–73°
Night≈50–60°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
66°54°20%⌄
Day≈61–72°
Night≈49–59°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
71°57°16.0 mm⌄
Day≈66–76°
Night≈51–62°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
71°57°20%⌄
Day≈66–76°
Night≈51–62°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
76°60°20%⌄
Day≈71–82°
Night≈55–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
74°59°16.0 mm⌄
Day≈69–80°
Night≈53–64°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
74°58°20%⌄
Day≈68–79°
Night≈53–64°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
69°55°20%⌄
Day≈63–74°
Night≈50–61°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
67°55°26.0 mm⌄
Day≈62–73°
Night≈49–60°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
71°57°20%⌄
Day≈66–77°
Night≈52–62°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
73°58°20%⌄
Day≈67–78°
Night≈53–63°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
78°61°35.0 mm⌄
Day≈73–83°
Night≈55–66°
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 Spring 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.