Greenbrier · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Greenbrier & 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
101°
Tue, Sep 1
Coldest night
70°
Sat, Aug 29
Days with precip
4 / 14
of 14 forecast days
Nicest day
Sat, Sep 5
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
99° 70°
4% precip chance
Sat 5 – Sun 6 Sep
92° 73°
73% precip chance
Sat 12 – Sun 13 Sep
88° 66°
typical range
Sat 19 – Sun 20 Sep
86° 65°
typical range
30 days — Greenbrier
14 forecast + 16 climatology
Mon · Today Showers
81°72°8.7 mm⌄
Wind9 mph SW
Gusts19 mph
UV index4 – Moderate
Precip chance85%
Sunrise06:36
Sunset19:47
Tue · Tomorrow Mostly cloudy
99°73°0.1 mm⌄
Wind8 mph SE
Gusts12 mph
UV index9 – Very high
Precip chance20%
Sunrise06:36
Sunset19:46
Wednesday 26/8 Showers
96°75°1.1 mm⌄
Wind12 mph SE
Gusts23 mph
UV index9 – Very high
Precip chance57%
Sunrise06:37
Sunset19:45
Thursday 27/8 Sunny
98°72°0.1 mm⌄
Wind10 mph NE
Gusts24 mph
UV index9 – Very high
Precip chance17%
Sunrise06:38
Sunset19:43
Friday 28/8 Sunny
97°72°1%⌄
Wind6 mph NE
Gusts22 mph
UV index9 – Very high
Precip chance1%
Sunrise06:39
Sunset19:42
Saturday 29/8 Sunny
96°70°4%⌄
Wind7 mph S
Gusts20 mph
UV index8 – Very high
Precip chance4%
Sunrise06:39
Sunset19:41
Sunday 30/8 Sunny
99°72°2%⌄
Wind9 mph SW
Gusts25 mph
UV index9 – Very high
Precip chance2%
Sunrise06:40
Sunset19:39
Monday 31/8 Sunny
98°75°2%⌄
Wind10 mph S
Gusts18 mph
UV index9 – Very high
Precip chance2%
Sunrise06:41
Sunset19:38
Tuesday 1/9 Sunny
101°78°2%⌄
Wind11 mph S
Gusts23 mph
UV index9 – Very high
Precip chance2%
Sunrise06:42
Sunset19:36
Wednesday 2/9 Sunny
100°78°2%⌄
Wind10 mph S
Gusts17 mph
UV index9 – Very high
Precip chance2%
Sunrise06:42
Sunset19:35
Thursday 3/9 Sunny
99°76°0.3 mm⌄
Wind11 mph S
Gusts15 mph
UV index9 – Very high
Precip chance36%
Sunrise06:43
Sunset19:34
Friday 4/9 Mostly cloudy
92°73°2.7 mm⌄
Wind6 mph SE
Gusts13 mph
UV index7 – High
Precip chance69%
Sunrise06:44
Sunset19:32
Saturday 5/9 Mostly cloudy
86°74°18%⌄
Wind6 mph S
Gusts10 mph
UV index7 – High
Precip chance18%
Sunrise06:45
Sunset19:31
Sunday 6/9 Mostly cloudy
92°73°5.3 mm⌄
Wind8 mph SW
Gusts16 mph
UV index8 – Very high
Precip chance73%
Sunrise06:45
Sunset19:30
Monday 7/9 Rain (climatological)
91°70°3.2 mm⌄
Day≈86–97°
Night≈65–75°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
96°73°20%⌄
Day≈91–101°
Night≈67–78°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
93°71°20%⌄
Day≈87–98°
Night≈65–76°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Rain (climatological)
93°71°3.3 mm⌄
Day≈88–99°
Night≈66–77°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
86°67°20%⌄
Day≈81–92°
Night≈62–72°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
85°66°20%⌄
Day≈79–90°
Night≈60–71°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
88°68°2.8 mm⌄
Day≈83–93°
Night≈63–73°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
87°68°20%⌄
Day≈82–93°
Night≈62–73°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
94°72°20%⌄
Day≈89–100°
Night≈66–77°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
94°72°2.1 mm⌄
Day≈89–100°
Night≈66–77°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
94°72°20%⌄
Day≈89–100°
Night≈66–77°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
86°67°20%⌄
Day≈80–91°
Night≈61–72°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
84°65°2.3 mm⌄
Day≈78–89°
Night≈60–71°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
86°67°20%⌄
Day≈81–92°
Night≈62–72°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
89°69°20%⌄
Day≈83–94°
Night≈63–74°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
95°72°3.5 mm⌄
Day≈89–100°
Night≈67–77°
Precip≈1.6 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 Greenbrier, 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.