Franklin Square · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Franklin Square & 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
90°
Thu, Sep 3
Coldest night
67°
Sun, Aug 23
Days with precip
5 / 14
of 14 forecast days
Nicest day
Tue, Aug 25
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
86° 71°
82% precip chance
Sat 5 – Sun 6 Sep
82° 65°
typical range
Sat 12 – Sun 13 Sep
74° 62°
typical range
Sat 19 – Sun 20 Sep
80° 63°
typical range
30 days — Franklin Square
14 forecast + 16 climatology
Sun · Today Sunny
85°67°2.8 mm⌄
Wind15 mph W
Gusts22 mph
UV index8 – High
Precip chance59%
Sunrise06:13
Sunset19:41
Mon · Tomorrow Sunny
83°70°1%⌄
Wind16 mph W
Gusts22 mph
UV index7 – High
Precip chance1%
Sunrise06:14
Sunset19:40
Tuesday 25/8 Sunny
84°69°1%⌄
Wind12 mph W
Gusts17 mph
UV index7 – High
Precip chance1%
Sunrise06:15
Sunset19:38
Wednesday 26/8 Sunny
85°67°4%⌄
Wind11 mph S
Gusts18 mph
UV index8 – High
Precip chance4%
Sunrise06:16
Sunset19:37
Thursday 27/8 Sunny
83°73°8%⌄
Wind13 mph S
Gusts15 mph
UV index7 – High
Precip chance8%
Sunrise06:16
Sunset19:35
Friday 28/8 Partly cloudy
84°73°0.2 mm⌄
Wind8 mph S
Gusts11 mph
UV index6 – High
Precip chance22%
Sunrise06:17
Sunset19:33
Saturday 29/8 Sunny
86°73°6%⌄
Wind11 mph S
Gusts17 mph
UV index8 – Very high
Precip chance6%
Sunrise06:18
Sunset19:32
Sunday 30/8 Showers
85°71°32.7 mm⌄
Wind14 mph S
Gusts18 mph
UV index6 – High
Precip chance82%
Sunrise06:19
Sunset19:30
Monday 31/8 Mostly cloudy
83°71°13.5 mm⌄
Wind13 mph NW
Gusts17 mph
UV index7 – High
Precip chance69%
Sunrise06:20
Sunset19:29
Tuesday 1/9 Showers
78°74°2.6 mm⌄
Wind9 mph NE
Gusts18 mph
UV index6 – High
Precip chance63%
Sunrise06:21
Sunset19:27
Wednesday 2/9 Showers
86°72°0.5 mm⌄
Wind8 mph S
Gusts10 mph
UV index8 – Very high
Precip chance36%
Sunrise06:22
Sunset19:25
Thursday 3/9 Sunny
90°75°4%⌄
Wind8 mph S
Gusts15 mph
UV index8 – Very high
Precip chance4%
Sunrise06:23
Sunset19:24
Friday 4/9 Showers
87°76°1.9 mm⌄
Wind12 mph S
Gusts21 mph
UV index8 – Very high
Precip chance57%
Sunrise06:24
Sunset19:22
Saturday 5/9 Showers
82°77°0.8 mm⌄
Wind13 mph S
Gusts21 mph
UV index6 – High
Precip chance53%
Sunrise06:25
Sunset19:21
Sunday 6/9 Rain (climatological)
77°65°9.1 mm⌄
Day≈72–83°
Night≈60–71°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
83°69°20%⌄
Day≈78–89°
Night≈64–74°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
80°67°20%⌄
Day≈74–85°
Night≈62–73°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Rain (climatological)
79°67°12.7 mm⌄
Day≈74–85°
Night≈61–72°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
73°63°20%⌄
Day≈68–79°
Night≈58–69°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
71°62°20%⌄
Day≈65–76°
Night≈56–67°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
72°62°6.0 mm⌄
Day≈67–77°
Night≈57–68°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
74°64°20%⌄
Day≈69–80°
Night≈58–69°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
79°66°20%⌄
Day≈73–84°
Night≈61–72°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
84°69°6.0 mm⌄
Day≈78–89°
Night≈64–75°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
80°67°20%⌄
Day≈74–85°
Night≈61–72°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
73°63°20%⌄
Day≈68–79°
Night≈58–69°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
73°63°11.5 mm⌄
Day≈67–78°
Night≈57–68°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
73°63°20%⌄
Day≈67–78°
Night≈57–68°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
80°67°20%⌄
Day≈74–85°
Night≈62–72°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
79°66°11.5 mm⌄
Day≈74–84°
Night≈61–72°
Precip≈4.7 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 Franklin Square, 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.