Sandy Valley · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Sandy 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
104°
Tue, Aug 25
Coldest night
62°
Sun, Sep 6
Days with precip
0 / 14
of 14 forecast days
Nicest day
Mon, Sep 7
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
92° 76°
1% precip chance
Sat 5 – Sun 6 Sep
88° 62°
1% precip chance
Sat 12 – Sun 13 Sep
82° 67°
typical range
Sat 19 – Sun 20 Sep
85° 70°
typical range
30 days — Sandy Valley
14 forecast + 16 climatology
Tue · Today Mostly cloudy
104°80°4%⌄
Wind11 mph SW
Gusts19 mph
UV index10 – Very high
Precip chance4%
Sunrise06:09
Sunset19:20
Wed · Tomorrow Sunny
96°83°0%⌄
Wind14 mph SW
Gusts24 mph
UV index10 – Very high
Precip chance0%
Sunrise06:09
Sunset19:18
Thursday 27/8 Sunny
97°83°0.1 mm⌄
Wind16 mph SW
Gusts22 mph
UV index10 – Very high
Precip chance17%
Sunrise06:10
Sunset19:17
Friday 28/8 Mostly cloudy
95°81°0.1 mm⌄
Wind17 mph SW
Gusts21 mph
UV index7 – High
Precip chance17%
Sunrise06:11
Sunset19:16
Saturday 29/8 Sunny
92°78°1%⌄
Wind15 mph SW
Gusts19 mph
UV index8 – Very high
Precip chance1%
Sunrise06:12
Sunset19:14
Sunday 30/8 Sunny
91°76°0%⌄
Wind15 mph SW
Gusts18 mph
UV index8 – Very high
Precip chance0%
Sunrise06:13
Sunset19:13
Monday 31/8 Sunny
88°76°1%⌄
Wind14 mph SW
Gusts19 mph
UV index8 – Very high
Precip chance1%
Sunrise06:13
Sunset19:11
Tuesday 1/9 Mostly cloudy
88°78°5%⌄
Wind15 mph SW
Gusts21 mph
UV index8 – Very high
Precip chance5%
Sunrise06:14
Sunset19:10
Wednesday 2/9 Sunny
87°74°3%⌄
Wind11 mph SW
Gusts21 mph
UV index8 – Very high
Precip chance3%
Sunrise06:15
Sunset19:09
Thursday 3/9 Sunny
90°77°1%⌄
Wind11 mph SW
Gusts20 mph
UV index8 – Very high
Precip chance1%
Sunrise06:16
Sunset19:07
Friday 4/9 Sunny
90°78°2%⌄
Wind17 mph SW
Gusts18 mph
UV index8 – Very high
Precip chance2%
Sunrise06:16
Sunset19:06
Saturday 5/9 Sunny
88°72°1%⌄
Wind28 mph SW
Gusts36 mph
UV index8 – Very high
Precip chance1%
Sunrise06:17
Sunset19:04
Sunday 6/9 Sunny
83°62°0%⌄
Wind13 mph W
Gusts19 mph
UV index7 – High
Precip chance0%
Sunrise06:18
Sunset19:03
Monday 7/9 Sunny
86°66°0%⌄
Wind6 mph E
Gusts14 mph
UV index7 – High
Precip chance0%
Sunrise06:19
Sunset19:01
Tuesday 8/9 Light rain (climatological)
87°73°1.6 mm⌄
Day≈82–93°
Night≈67–78°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
89°73°20%⌄
Day≈83–94°
Night≈68–79°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
91°75°20%⌄
Day≈85–96°
Night≈69–80°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Light rain (climatological)
89°74°1.0 mm⌄
Day≈84–95°
Night≈68–79°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
82°69°20%⌄
Day≈77–87°
Night≈64–75°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
79°67°20%⌄
Day≈73–84°
Night≈62–73°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Light rain (climatological)
80°68°1.2 mm⌄
Day≈74–85°
Night≈63–74°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
88°73°20%⌄
Day≈82–93°
Night≈67–78°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
89°74°20%⌄
Day≈83–94°
Night≈68–79°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Light rain (climatological)
88°73°0.9 mm⌄
Day≈83–93°
Night≈68–78°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
89°73°20%⌄
Day≈83–94°
Night≈68–79°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
85°72°20%⌄
Day≈80–91°
Night≈66–77°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Light rain (climatological)
82°70°2.0 mm⌄
Day≈77–88°
Night≈64–75°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
83°70°20%⌄
Day≈78–89°
Night≈65–76°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
87°73°20%⌄
Day≈82–93°
Night≈67–78°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Light rain (climatological)
91°75°1.5 mm⌄
Day≈85–96°
Night≈69–80°
Precip≈0.6 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 Sandy 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.