Cajahs Mountain · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Cajahs Mountain & 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°
Tue, Sep 1
Coldest night
63°
Tue, Aug 25
Days with precip
6 / 14
of 14 forecast days
Nicest day
Sun, Sep 6
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
89° 69°
70% precip chance
Sat 5 – Sun 6 Sep
85° 65°
74% precip chance
Sat 12 – Sun 13 Sep
74° 58°
typical range
Sat 19 – Sun 20 Sep
78° 61°
typical range
30 days — Cajahs Mountain
14 forecast + 16 climatology
Mon · Today Sunny
86°63°4%⌄
Wind9 mph N
Gusts19 mph
UV index9 – Very high
Precip chance4%
Sunrise06:52
Sunset20:05
Tue · Tomorrow Sunny
85°63°3%⌄
Wind7 mph SE
Gusts18 mph
UV index9 – Very high
Precip chance3%
Sunrise06:52
Sunset20:03
Wednesday 26/8 Sunny
88°65°0.7 mm⌄
Wind6 mph S
Gusts14 mph
UV index9 – Very high
Precip chance36%
Sunrise06:53
Sunset20:02
Thursday 27/8 Showers
82°68°3.0 mm⌄
Wind8 mph S
Gusts19 mph
UV index9 – Very high
Precip chance72%
Sunrise06:54
Sunset20:01
Friday 28/8 Fog
86°67°1.5 mm⌄
Wind4 mph S
Gusts13 mph
UV index7 – High
Precip chance65%
Sunrise06:55
Sunset19:59
Saturday 29/8 Sunny
88°69°1.0 mm⌄
Wind8 mph S
Gusts12 mph
UV index8 – Very high
Precip chance45%
Sunrise06:55
Sunset19:58
Sunday 30/8 Showers
89°71°3.1 mm⌄
Wind7 mph SW
Gusts16 mph
UV index7 – High
Precip chance70%
Sunrise06:56
Sunset19:56
Monday 31/8 Mostly cloudy
88°72°1.6 mm⌄
Wind4 mph W
Gusts9 mph
UV index8 – Very high
Precip chance58%
Sunrise06:57
Sunset19:55
Tuesday 1/9 Mostly cloudy
90°70°1.1 mm⌄
Wind4 mph NW
Gusts13 mph
UV index8 – Very high
Precip chance57%
Sunrise06:58
Sunset19:54
Wednesday 2/9 Mostly cloudy
82°69°0.9 mm⌄
Wind9 mph SW
Gusts21 mph
UV index7 – High
Precip chance54%
Sunrise06:58
Sunset19:52
Thursday 3/9 Sunny
84°71°7%⌄
Wind7 mph N
Gusts17 mph
UV index7 – High
Precip chance7%
Sunrise06:59
Sunset19:51
Friday 4/9 Mostly cloudy
79°64°14%⌄
Wind6 mph S
Gusts15 mph
UV index6 – High
Precip chance14%
Sunrise07:00
Sunset19:49
Saturday 5/9 Sunny
85°65°6.7 mm⌄
Wind7 mph S
Gusts9 mph
UV index7 – High
Precip chance74%
Sunrise07:01
Sunset19:48
Sunday 6/9 Mostly cloudy
80°65°9%⌄
Wind5 mph SE
Gusts14 mph
UV index7 – High
Precip chance9%
Sunrise07:02
Sunset19:47
Monday 7/9 Rain (climatological)
81°64°5.5 mm⌄
Day≈76–87°
Night≈58–69°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
81°64°20%⌄
Day≈76–87°
Night≈58–69°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
81°64°20%⌄
Day≈76–87°
Night≈58–69°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Rain (climatological)
82°64°4.1 mm⌄
Day≈76–87°
Night≈58–69°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
75°60°20%⌄
Day≈69–80°
Night≈54–65°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
73°58°20%⌄
Day≈67–78°
Night≈53–64°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
74°59°5.5 mm⌄
Day≈69–80°
Night≈54–65°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
78°62°20%⌄
Day≈73–84°
Night≈56–67°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
81°63°20%⌄
Day≈76–86°
Night≈58–69°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
83°64°2.5 mm⌄
Day≈77–88°
Night≈59–70°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
83°64°20%⌄
Day≈77–88°
Night≈59–70°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
76°60°20%⌄
Day≈70–81°
Night≈55–66°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
77°61°3.4 mm⌄
Day≈72–82°
Night≈56–66°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
78°62°20%⌄
Day≈73–84°
Night≈56–67°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
82°64°20%⌄
Day≈77–87°
Night≈59–69°
Precip≈1.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
85°66°3.2 mm⌄
Day≈80–90°
Night≈60–71°
Precip≈1.7 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 Cajahs Mountain, 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.