Glen · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Glen & 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
32°
Wed, Aug 19
Coldest night
18°
Tue, Sep 1
Days with precip
3 / 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
30° 20°
77% precip chance
Sat 29 – Sun 30 Aug
28° 18°
3% precip chance
Sat 5 – Sun 6 Sep
26° 15°
typical range
Sat 12 – Sun 13 Sep
24° 15°
typical range
30 days — Glen
14 forecast + 16 climatology
Wed · Today Sunny
32°19°3%⌄
Wind8 mph W
Gusts11 mph
UV index9 – Very high
Precip chance3%
Sunrise06:23
Sunset19:57
Thu · Tomorrow Mostly cloudy
26°21°1.0 mm⌄
Wind7 mph N
Gusts13 mph
UV index5 – Moderate
Precip chance51%
Sunrise06:24
Sunset19:55
Friday 21/8 Mostly cloudy
28°19°8%⌄
Wind9 mph SE
Gusts16 mph
UV index8 – Very high
Precip chance8%
Sunrise06:25
Sunset19:54
Saturday 22/8 Showers
27°20°3.4 mm⌄
Wind8 mph E
Gusts15 mph
UV index3 – Low
Precip chance77%
Sunrise06:26
Sunset19:53
Sunday 23/8 Sunny
30°20°0.7 mm⌄
Wind8 mph N
Gusts17 mph
UV index8 – Very high
Precip chance40%
Sunrise06:27
Sunset19:51
Monday 24/8 Sunny
31°21°4%⌄
Wind5 mph N
Gusts14 mph
UV index8 – Very high
Precip chance4%
Sunrise06:28
Sunset19:50
Tuesday 25/8 Showers
26°22°9.9 mm⌄
Wind5 mph E
Gusts14 mph
UV index6 – High
Precip chance79%
Sunrise06:28
Sunset19:48
Wednesday 26/8 Mostly cloudy
28°19°0.6 mm⌄
Wind9 mph NE
Gusts19 mph
UV index6 – High
Precip chance48%
Sunrise06:29
Sunset19:47
Thursday 27/8 Sunny
26°19°0.3 mm⌄
Wind12 mph NE
Gusts20 mph
UV index7 – High
Precip chance36%
Sunrise06:30
Sunset19:45
Friday 28/8 Sunny
27°18°2%⌄
Wind7 mph NE
Gusts13 mph
UV index7 – High
Precip chance2%
Sunrise06:31
Sunset19:44
Saturday 29/8 Sunny
27°18°3%⌄
Wind8 mph E
Gusts12 mph
UV index7 – High
Precip chance3%
Sunrise06:32
Sunset19:42
Sunday 30/8 Sunny
28°19°2%⌄
Wind9 mph N
Gusts14 mph
UV index7 – High
Precip chance2%
Sunrise06:33
Sunset19:41
Monday 31/8 Sunny
28°20°2%⌄
Wind7 mph E
Gusts15 mph
UV index7 – High
Precip chance2%
Sunrise06:34
Sunset19:39
Tuesday 1/9 Sunny
23°18°2.7 mm⌄
Wind6 mph S
Gusts15 mph
UV index6 – High
Precip chance59%
Sunrise06:35
Sunset19:38
Wednesday 2/9 Rain (climatological)
22°15°3.9 mm⌄
Day≈19–25°
Night≈12–18°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 3/9 Partly cloudy (climatological)
25°17°20%⌄
Day≈22–28°
Night≈14–20°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Partly cloudy (climatological)
26°17°20%⌄
Day≈23–29°
Night≈14–20°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Rain (climatological)
26°18°4.7 mm⌄
Day≈23–29°
Night≈15–21°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
22°15°20%⌄
Day≈19–25°
Night≈12–18°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
21°15°20%⌄
Day≈18–24°
Night≈12–18°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Rain (climatological)
22°15°2.9 mm⌄
Day≈19–25°
Night≈12–18°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
24°16°20%⌄
Day≈21–27°
Night≈13–19°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
27°18°20%⌄
Day≈24–30°
Night≈15–21°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
28°18°4.1 mm⌄
Day≈25–31°
Night≈15–21°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
24°16°20%⌄
Day≈21–27°
Night≈13–19°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
22°15°20%⌄
Day≈19–25°
Night≈12–18°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
22°15°4.8 mm⌄
Day≈19–25°
Night≈12–18°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
21°14°20%⌄
Day≈18–24°
Night≈11–17°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
22°15°20%⌄
Day≈19–25°
Night≈12–18°
Precip≈1.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
25°17°5.3 mm⌄
Day≈22–28°
Night≈14–20°
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 Glen, 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.