Granite · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Granite & 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
92°
Fri, Aug 21
Coldest night
58°
Tue, Aug 25
Days with precip
5 / 14
of 14 forecast days
Nicest day
Fri, Aug 28
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
88° 62°
57% precip chance
Sat 29 – Sun 30 Aug
86° 61°
57% precip chance
Sat 5 – Sun 6 Sep
73° 53°
typical range
Sat 12 – Sun 13 Sep
74° 53°
typical range
30 days — Granite
14 forecast + 16 climatology
Tue · Today Mostly cloudy
84°63°0.1 mm⌄
Wind8 mph SW
Gusts17 mph
UV index10 – Very high
Precip chance17%
Sunrise06:40
Sunset20:21
Wed · Tomorrow Sunny
88°66°2%⌄
Wind9 mph NW
Gusts21 mph
UV index10 – Very high
Precip chance2%
Sunrise06:41
Sunset20:19
Thursday 20/8 Mostly cloudy
90°68°4%⌄
Wind8 mph SW
Gusts18 mph
UV index9 – Very high
Precip chance4%
Sunrise06:42
Sunset20:18
Friday 21/8 Mostly cloudy
92°65°0.8 mm⌄
Wind13 mph SW
Gusts21 mph
UV index9 – Very high
Precip chance40%
Sunrise06:43
Sunset20:16
Saturday 22/8 Mostly cloudy
88°63°0.2 mm⌄
Wind9 mph SW
Gusts13 mph
UV index8 – Very high
Precip chance18%
Sunrise06:44
Sunset20:15
Sunday 23/8 Showers
86°62°1.2 mm⌄
Wind8 mph SW
Gusts10 mph
UV index7 – High
Precip chance57%
Sunrise06:45
Sunset20:13
Monday 24/8 Mostly cloudy
83°58°12.9 mm⌄
Wind8 mph E
Gusts11 mph
UV index7 – High
Precip chance74%
Sunrise06:46
Sunset20:12
Tuesday 25/8 Mostly cloudy
77°58°6.4 mm⌄
Wind9 mph E
Gusts11 mph
UV index6 – High
Precip chance64%
Sunrise06:47
Sunset20:10
Wednesday 26/8 Sunny
83°62°0.4 mm⌄
Wind7 mph W
Gusts16 mph
UV index7 – High
Precip chance36%
Sunrise06:48
Sunset20:09
Thursday 27/8 Sunny
85°63°0.7 mm⌄
Wind7 mph NW
Gusts17 mph
UV index7 – High
Precip chance36%
Sunrise06:49
Sunset20:07
Friday 28/8 Sunny
87°66°3%⌄
Wind7 mph SW
Gusts17 mph
UV index7 – High
Precip chance3%
Sunrise06:50
Sunset20:06
Saturday 29/8 Mostly cloudy
86°63°1.2 mm⌄
Wind13 mph E
Gusts17 mph
UV index7 – High
Precip chance57%
Sunrise06:51
Sunset20:04
Sunday 30/8 Sunny
82°61°0.8 mm⌄
Wind7 mph SW
Gusts14 mph
UV index7 – High
Precip chance36%
Sunrise06:52
Sunset20:03
Monday 31/8 Showers
81°61°1.1 mm⌄
Wind7 mph W
Gusts14 mph
UV index7 – High
Precip chance57%
Sunrise06:53
Sunset20:01
Tuesday 1/9 Rain (climatological)
76°55°4.1 mm⌄
Day≈70–81°
Night≈50–60°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 2/9 Partly cloudy (climatological)
82°59°20%⌄
Day≈77–88°
Night≈54–64°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 3/9 Partly cloudy (climatological)
82°59°20%⌄
Day≈76–87°
Night≈53–64°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Rain (climatological)
77°56°3.7 mm⌄
Day≈72–83°
Night≈51–62°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Partly cloudy (climatological)
73°54°20%⌄
Day≈68–79°
Night≈48–59°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
72°53°20%⌄
Day≈67–78°
Night≈47–58°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Rain (climatological)
72°53°3.4 mm⌄
Day≈67–77°
Night≈47–58°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
78°56°20%⌄
Day≈73–83°
Night≈51–62°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
84°60°20%⌄
Day≈78–89°
Night≈55–65°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Rain (climatological)
80°58°6.5 mm⌄
Day≈74–85°
Night≈52–63°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
78°56°20%⌄
Day≈73–83°
Night≈51–62°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
74°54°20%⌄
Day≈69–80°
Night≈49–60°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
73°53°7.5 mm⌄
Day≈68–78°
Night≈48–59°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
73°54°20%⌄
Day≈68–79°
Night≈48–59°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
78°57°20%⌄
Day≈73–84°
Night≈51–62°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
82°59°4.9 mm⌄
Day≈77–88°
Night≈54–64°
Precip≈2.2 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 Granite, 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.