Sandstone Valley · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Sandstone 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
91°
Thu, Aug 27
Coldest night
45°
Sat, Sep 5
Days with precip
3 / 14
of 14 forecast days
Nicest day
Wed, Sep 2
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
80° 49°
67% precip chance
Sat 5 – Sun 6 Sep
64° 41°
typical range
Sat 12 – Sun 13 Sep
64° 41°
typical range
Sat 19 – Sun 20 Sep
62° 40°
typical range
30 days — Sandstone Valley
14 forecast + 16 climatology
Sun · Today Showers
82°58°0.7 mm⌄
Wind17 mph SW
Gusts32 mph
UV index6 – Moderate
Precip chance36%
Sunrise06:35
Sunset20:42
Mon · Tomorrow Sunny
75°54°0.6 mm⌄
Wind13 mph NW
Gusts29 mph
UV index6 – Moderate
Precip chance36%
Sunrise06:37
Sunset20:39
Tuesday 25/8 Sunny
78°52°3%⌄
Wind12 mph SE
Gusts23 mph
UV index6 – Moderate
Precip chance3%
Sunrise06:39
Sunset20:37
Wednesday 26/8 Sunny
88°55°4%⌄
Wind13 mph SE
Gusts28 mph
UV index6 – Moderate
Precip chance4%
Sunrise06:40
Sunset20:35
Thursday 27/8 Sunny
91°60°2%⌄
Wind15 mph SW
Gusts30 mph
UV index6 – Moderate
Precip chance2%
Sunrise06:42
Sunset20:33
Friday 28/8 Sunny
78°52°3%⌄
Wind12 mph E
Gusts28 mph
UV index7 – High
Precip chance3%
Sunrise06:43
Sunset20:31
Saturday 29/8 Sunny
78°49°5%⌄
Wind12 mph E
Gusts23 mph
UV index7 – High
Precip chance5%
Sunrise06:45
Sunset20:29
Sunday 30/8 Mostly cloudy
80°52°6.6 mm⌄
Wind11 mph SE
Gusts18 mph
UV index7 – High
Precip chance67%
Sunrise06:46
Sunset20:27
Monday 31/8 Showers
61°50°11.5 mm⌄
Wind18 mph NW
Gusts39 mph
UV index5 – Moderate
Precip chance83%
Sunrise06:48
Sunset20:24
Tuesday 1/9 Sunny
73°50°5%⌄
Wind16 mph W
Gusts38 mph
UV index6 – High
Precip chance5%
Sunrise06:49
Sunset20:22
Wednesday 2/9 Sunny
73°49°4%⌄
Wind7 mph NE
Gusts13 mph
UV index6 – High
Precip chance4%
Sunrise06:51
Sunset20:20
Thursday 3/9 Sunny
72°51°6%⌄
Wind8 mph E
Gusts20 mph
UV index6 – High
Precip chance6%
Sunrise06:53
Sunset20:18
Friday 4/9 Mostly cloudy
59°50°1.0 mm⌄
Wind9 mph NE
Gusts18 mph
UV index3 – Moderate
Precip chance67%
Sunrise06:54
Sunset20:16
Saturday 5/9 Mostly cloudy
64°45°17%⌄
Wind14 mph SE
Gusts20 mph
UV index4 – Moderate
Precip chance17%
Sunrise06:56
Sunset20:13
Sunday 6/9 Rain (climatological)
63°41°3.4 mm⌄
Day≈58–69°
Night≈36–47°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
66°43°20%⌄
Day≈61–72°
Night≈38–48°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
70°46°20%⌄
Day≈65–76°
Night≈40–51°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Rain (climatological)
68°44°3.4 mm⌄
Day≈63–73°
Night≈39–49°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
60°39°20%⌄
Day≈54–65°
Night≈34–44°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
59°39°20%⌄
Day≈54–65°
Night≈33–44°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
62°41°3.7 mm⌄
Day≈57–68°
Night≈35–46°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
64°42°20%⌄
Day≈59–70°
Night≈37–47°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
65°42°20%⌄
Day≈60–71°
Night≈37–48°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
66°43°5.3 mm⌄
Day≈61–72°
Night≈38–48°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
68°44°20%⌄
Day≈62–73°
Night≈38–49°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
61°40°20%⌄
Day≈56–66°
Night≈34–45°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
60°39°5.4 mm⌄
Day≈55–66°
Night≈34–45°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
61°40°20%⌄
Day≈55–66°
Night≈34–45°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
62°40°20%⌄
Day≈57–67°
Night≈35–46°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
69°45°4.4 mm⌄
Day≈64–75°
Night≈39–50°
Precip≈1.7 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 Sandstone 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.