Colonial Heights · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Colonial Heights & 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°
Thu, Aug 27
Coldest night
63°
Tue, Aug 25
Days with precip
7 / 14
of 14 forecast days
Nicest day
Mon, Aug 24
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
90° 67°
36% precip chance
Sat 5 – Sun 6 Sep
83° 63°
typical range
Sat 12 – Sun 13 Sep
83° 60°
typical range
Sat 19 – Sun 20 Sep
79° 61°
typical range
30 days — Colonial Heights
14 forecast + 16 climatology
Sun · Today Showers
91°68°1.3 mm⌄
Wind8 mph NW
Gusts20 mph
UV index8 – Very high
Precip chance57%
Sunrise06:32
Sunset19:51
Mon · Tomorrow Sunny
87°64°3%⌄
Wind6 mph N
Gusts11 mph
UV index8 – High
Precip chance3%
Sunrise06:33
Sunset19:50
Tuesday 25/8 Sunny
90°63°4%⌄
Wind6 mph E
Gusts16 mph
UV index7 – High
Precip chance4%
Sunrise06:34
Sunset19:48
Wednesday 26/8 Sunny
92°66°7%⌄
Wind9 mph SE
Gusts23 mph
UV index8 – Very high
Precip chance7%
Sunrise06:35
Sunset19:47
Thursday 27/8 Mostly cloudy
92°69°5.7 mm⌄
Wind9 mph W
Gusts21 mph
UV index7 – High
Precip chance79%
Sunrise06:36
Sunset19:46
Friday 28/8 Mostly cloudy
89°70°1.0 mm⌄
Wind5 mph S
Gusts18 mph
UV index8 – Very high
Precip chance64%
Sunrise06:36
Sunset19:44
Saturday 29/8 Sunny
90°67°0.7 mm⌄
Wind7 mph SE
Gusts18 mph
UV index8 – Very high
Precip chance36%
Sunrise06:37
Sunset19:43
Sunday 30/8 Sunny
89°67°14%⌄
Wind9 mph E
Gusts20 mph
UV index8 – Very high
Precip chance14%
Sunrise06:38
Sunset19:41
Monday 31/8 Mostly cloudy
90°68°11%⌄
Wind9 mph S
Gusts25 mph
UV index8 – Very high
Precip chance11%
Sunrise06:39
Sunset19:40
Tuesday 1/9 Mostly cloudy
88°71°6.3 mm⌄
Wind10 mph SW
Gusts27 mph
UV index8 – Very high
Precip chance78%
Sunrise06:40
Sunset19:38
Wednesday 2/9 Sunny
91°71°4.6 mm⌄
Wind5 mph W
Gusts9 mph
UV index8 – Very high
Precip chance73%
Sunrise06:41
Sunset19:37
Thursday 3/9 Sunny
87°73°0.3 mm⌄
Wind9 mph NE
Gusts19 mph
UV index8 – Very high
Precip chance36%
Sunrise06:41
Sunset19:36
Friday 4/9 Showers
83°70°11.7 mm⌄
Wind8 mph S
Gusts21 mph
UV index6 – High
Precip chance90%
Sunrise06:42
Sunset19:34
Saturday 5/9 Fog
77°69°4.4 mm⌄
Wind8 mph NE
Gusts18 mph
UV index6 – High
Precip chance89%
Sunrise06:43
Sunset19:33
Sunday 6/9 Rain (climatological)
83°63°6.2 mm⌄
Day≈77–88°
Night≈58–69°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
88°66°20%⌄
Day≈82–93°
Night≈61–72°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
85°64°20%⌄
Day≈79–90°
Night≈59–70°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Rain (climatological)
87°65°8.1 mm⌄
Day≈81–92°
Night≈60–71°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
80°61°20%⌄
Day≈74–85°
Night≈56–67°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
77°60°20%⌄
Day≈71–82°
Night≈54–65°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
78°60°8.1 mm⌄
Day≈73–83°
Night≈55–66°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
83°64°20%⌄
Day≈78–89°
Night≈58–69°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
83°64°20%⌄
Day≈78–89°
Night≈58–69°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
84°64°6.8 mm⌄
Day≈79–90°
Night≈59–69°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
82°62°20%⌄
Day≈76–87°
Night≈57–68°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
77°60°20%⌄
Day≈72–83°
Night≈55–65°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
76°59°5.5 mm⌄
Day≈70–81°
Night≈53–64°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
79°61°20%⌄
Day≈73–84°
Night≈55–66°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
79°61°20%⌄
Day≈74–85°
Night≈56–67°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
87°66°6.5 mm⌄
Day≈82–92°
Night≈60–71°
Precip≈3.1 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 Colonial Heights, 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.