Calumet City · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Calumet City & 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
38°
Wed, Sep 2
Coldest night
16°
Mon, Sep 7
Days with precip
4 / 14
of 14 forecast days
Nicest day
Fri, Sep 11
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
34° 18°
36% precip chance
Sat 12 – Sun 13 Sep
34° 21°
36% precip chance
Sat 19 – Sun 20 Sep
33° 20°
typical range
Sat 26 – Sun 27 Sep
33° 19°
typical range
30 days — Calumet City
14 forecast + 16 climatology
Wed · Today Sunny
38°24°5%⌄
Wind11 mph SW
Gusts28 mph
UV index7 – High
Precip chance5%
Sunrise06:17
Sunset19:22
Thu · Tomorrow Sunny
34°26°1.1 mm⌄
Wind9 mph SW
Gusts34 mph
UV index7 – High
Precip chance57%
Sunrise06:18
Sunset19:20
Friday 4/9 Thunderstorms
35°26°0.6 mm⌄
Wind9 mph SW
Gusts14 mph
UV index7 – High
Precip chance36%
Sunrise06:19
Sunset19:18
Saturday 5/9 Sunny
34°22°0.5 mm⌄
Wind11 mph N
Gusts22 mph
UV index7 – High
Precip chance36%
Sunrise06:20
Sunset19:17
Sunday 6/9 Sunny
28°18°5%⌄
Wind9 mph E
Gusts22 mph
UV index7 – High
Precip chance5%
Sunrise06:21
Sunset19:15
Monday 7/9 Mostly cloudy
28°16°12%⌄
Wind8 mph SE
Gusts20 mph
UV index7 – High
Precip chance12%
Sunrise06:22
Sunset19:13
Tuesday 8/9 Mostly cloudy
34°21°20%⌄
Wind13 mph SW
Gusts30 mph
UV index7 – High
Precip chance20%
Sunrise06:23
Sunset19:12
Wednesday 9/9 Mostly cloudy
31°23°1.7 mm⌄
Wind11 mph S
Gusts34 mph
UV index7 – High
Precip chance60%
Sunrise06:24
Sunset19:10
Thursday 10/9 Showers
27°20°3.1 mm⌄
Wind7 mph SW
Gusts25 mph
UV index6 – High
Precip chance69%
Sunrise06:25
Sunset19:08
Friday 11/9 Sunny
27°16°6%⌄
Wind9 mph SE
Gusts24 mph
UV index7 – High
Precip chance6%
Sunrise06:26
Sunset19:07
Saturday 12/9 Sunny
34°21°3%⌄
Wind12 mph SW
Gusts28 mph
UV index8 – Very high
Precip chance3%
Sunrise06:27
Sunset19:05
Sunday 13/9 Mostly cloudy
29°22°0.4 mm⌄
Wind14 mph SW
Gusts30 mph
UV index6 – High
Precip chance36%
Sunrise06:28
Sunset19:03
Monday 14/9 Mostly cloudy
22°17°2.0 mm⌄
Wind5 mph N
Gusts12 mph
UV index5 – Moderate
Precip chance74%
Sunrise06:29
Sunset19:01
Tuesday 15/9 Mostly cloudy
28°17°9%⌄
Wind8 mph W
Gusts18 mph
UV index7 – High
Precip chance9%
Sunrise06:30
Sunset19:00
Wednesday 16/9 Light rain (climatological)
30°21°1.3 mm⌄
Day≈27–33°
Night≈18–24°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
31°21°20%⌄
Day≈28–34°
Night≈18–24°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
34°23°20%⌄
Day≈31–37°
Night≈20–26°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Light rain (climatological)
33°22°2.0 mm⌄
Day≈30–36°
Night≈19–25°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
30°20°20%⌄
Day≈27–33°
Night≈17–23°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
27°18°20%⌄
Day≈24–30°
Night≈15–21°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
29°20°2.1 mm⌄
Day≈26–32°
Night≈17–23°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
29°20°20%⌄
Day≈26–32°
Night≈17–23°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
33°22°20%⌄
Day≈30–36°
Night≈19–25°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
32°21°2.2 mm⌄
Day≈29–35°
Night≈18–24°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
33°22°20%⌄
Day≈30–36°
Night≈19–25°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
28°19°20%⌄
Day≈25–31°
Night≈16–22°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Light rain (climatological)
29°20°1.6 mm⌄
Day≈26–32°
Night≈17–23°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
29°20°20%⌄
Day≈26–32°
Night≈17–23°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
32°21°20%⌄
Day≈29–35°
Night≈18–24°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Light rain (climatological)
24°14°1.9 mm⌄
Day≈21–27°
Night≈11–17°
Precip≈0.8 in / October
(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 Calumet City, 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.