Holts Summit · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Holts Summit & 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
98°
Tue, Sep 1
Coldest night
59°
Thu, Aug 27
Days with precip
4 / 14
of 14 forecast days
Nicest day
Sat, Aug 29
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
93° 66°
57% precip chance
Sat 29 – Sun 30 Aug
87° 60°
4% precip chance
Sat 5 – Sun 6 Sep
84° 56°
typical range
Sat 12 – Sun 13 Sep
86° 57°
typical range
30 days — Holts Summit
14 forecast + 16 climatology
Wed · Today Heavy rain
85°69°540.3 mm⌄
Wind13 mph SE
Gusts25 mph
UV index7 – High
Precip chance85%
Sunrise06:26
Sunset19:57
Thu · Tomorrow Sunny
87°66°10%⌄
Wind9 mph NE
Gusts22 mph
UV index8 – Very high
Precip chance10%
Sunrise06:27
Sunset19:56
Friday 21/8 Sunny
91°66°6%⌄
Wind5 mph SE
Gusts12 mph
UV index8 – Very high
Precip chance6%
Sunrise06:28
Sunset19:55
Saturday 22/8 Sunny
91°67°1.1 mm⌄
Wind12 mph N
Gusts24 mph
UV index8 – Very high
Precip chance57%
Sunrise06:28
Sunset19:53
Sunday 23/8 Mostly cloudy
93°66°1.0 mm⌄
Wind15 mph SE
Gusts25 mph
UV index7 – High
Precip chance53%
Sunrise06:29
Sunset19:52
Monday 24/8 Partly cloudy
92°64°1.2 mm⌄
Wind12 mph SE
Gusts25 mph
UV index8 – Very high
Precip chance57%
Sunrise06:30
Sunset19:51
Tuesday 25/8 Mostly cloudy
93°70°12%⌄
Wind8 mph NW
Gusts18 mph
UV index7 – High
Precip chance12%
Sunrise06:31
Sunset19:49
Wednesday 26/8 Sunny
85°65°3%⌄
Wind13 mph NE
Gusts27 mph
UV index7 – High
Precip chance3%
Sunrise06:32
Sunset19:48
Thursday 27/8 Sunny
83°59°5%⌄
Wind12 mph NE
Gusts25 mph
UV index7 – High
Precip chance5%
Sunrise06:33
Sunset19:46
Friday 28/8 Sunny
85°60°7%⌄
Wind8 mph NE
Gusts25 mph
UV index7 – High
Precip chance7%
Sunrise06:34
Sunset19:45
Saturday 29/8 Sunny
85°60°4%⌄
Wind8 mph E
Gusts25 mph
UV index7 – High
Precip chance4%
Sunrise06:35
Sunset19:43
Sunday 30/8 Sunny
87°62°4%⌄
Wind9 mph E
Gusts21 mph
UV index8 – Very high
Precip chance4%
Sunrise06:36
Sunset19:42
Monday 31/8 Mostly cloudy
88°65°9%⌄
Wind9 mph NE
Gusts20 mph
UV index8 – Very high
Precip chance9%
Sunrise06:36
Sunset19:40
Tuesday 1/9 Sunny
98°66°3%⌄
Wind7 mph E
Gusts19 mph
UV index9 – Very high
Precip chance3%
Sunrise06:37
Sunset19:39
Wednesday 2/9 Rain (climatological)
80°58°31.0 mm⌄
Day≈75–86°
Night≈53–63°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 3/9 Partly cloudy (climatological)
86°61°20%⌄
Day≈80–91°
Night≈56–66°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Partly cloudy (climatological)
88°62°20%⌄
Day≈82–93°
Night≈57–68°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Rain (climatological)
84°60°17.0 mm⌄
Day≈78–89°
Night≈55–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
78°56°20%⌄
Day≈73–83°
Night≈51–62°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
76°55°20%⌄
Day≈71–81°
Night≈50–61°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Rain (climatological)
79°57°26.0 mm⌄
Day≈74–85°
Night≈52–63°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
83°59°20%⌄
Day≈77–88°
Night≈54–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
83°59°20%⌄
Day≈78–88°
Night≈54–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
84°60°29.0 mm⌄
Day≈78–89°
Night≈55–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
86°62°20%⌄
Day≈81–92°
Night≈56–67°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
78°57°20%⌄
Day≈73–84°
Night≈51–62°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
79°57°25.0 mm⌄
Day≈74–85°
Night≈52–63°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
80°58°20%⌄
Day≈74–85°
Night≈52–63°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
81°58°20%⌄
Day≈76–86°
Night≈53–64°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
84°60°40.0 mm⌄
Day≈78–89°
Night≈55–65°
Precip≈11.8 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 Holts Summit, 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.