Arapahoe · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Arapahoe & 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
95°
Tue, Sep 1
Coldest night
40°
Mon, Sep 7
Days with precip
2 / 14
of 14 forecast days
Nicest day
Mon, Sep 7
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
88° 62°
5% precip chance
Sat 5 – Sun 6 Sep
76° 42°
72% precip chance
Sat 12 – Sun 13 Sep
73° 48°
typical range
Sat 19 – Sun 20 Sep
76° 49°
typical range
30 days — Arapahoe
14 forecast + 16 climatology
Tue · Today Sunny
87°64°0.2 mm⌄
Wind10 mph NE
Gusts21 mph
UV index8 – Very high
Precip chance17%
Sunrise06:31
Sunset20:01
Wed · Tomorrow Mostly cloudy
90°63°9%⌄
Wind11 mph NW
Gusts17 mph
UV index8 – High
Precip chance9%
Sunrise06:32
Sunset19:59
Thursday 27/8 Mostly cloudy
93°65°0.3 mm⌄
Wind34 mph NW
Gusts37 mph
UV index8 – Very high
Precip chance36%
Sunrise06:33
Sunset19:57
Friday 28/8 Mostly cloudy
91°64°0.2 mm⌄
Wind25 mph S
Gusts32 mph
UV index8 – Very high
Precip chance17%
Sunrise06:34
Sunset19:56
Saturday 29/8 Mostly cloudy
88°65°5%⌄
Wind18 mph W
Gusts27 mph
UV index7 – High
Precip chance5%
Sunrise06:35
Sunset19:54
Sunday 30/8 Sunny
87°62°3%⌄
Wind10 mph W
Gusts18 mph
UV index7 – High
Precip chance3%
Sunrise06:36
Sunset19:52
Monday 31/8 Mostly cloudy
90°63°0.2 mm⌄
Wind18 mph W
Gusts22 mph
UV index8 – Very high
Precip chance17%
Sunrise06:37
Sunset19:51
Tuesday 1/9 Mostly cloudy
95°62°0.2 mm⌄
Wind30 mph SW
Gusts42 mph
UV index7 – High
Precip chance17%
Sunrise06:38
Sunset19:49
Wednesday 2/9 Mostly cloudy
83°60°4%⌄
Wind25 mph W
Gusts37 mph
UV index7 – High
Precip chance4%
Sunrise06:39
Sunset19:47
Thursday 3/9 Mostly cloudy
83°54°6%⌄
Wind12 mph NW
Gusts21 mph
UV index7 – High
Precip chance6%
Sunrise06:40
Sunset19:45
Friday 4/9 Partly cloudy
88°57°4%⌄
Wind14 mph W
Gusts20 mph
UV index7 – High
Precip chance4%
Sunrise06:41
Sunset19:44
Saturday 5/9 Mostly cloudy
76°55°6.4 mm⌄
Wind14 mph S
Gusts21 mph
UV index5 – Moderate
Precip chance72%
Sunrise06:42
Sunset19:42
Sunday 6/9 Sunny
60°42°10.2 mm⌄
Wind21 mph NE
Gusts25 mph
UV index4 – Moderate
Precip chance66%
Sunrise06:44
Sunset19:40
Monday 7/9 Sunny
63°40°1%⌄
Wind9 mph NE
Gusts15 mph
UV index5 – Moderate
Precip chance1%
Sunrise06:45
Sunset19:38
Tuesday 8/9 Rain (climatological)
78°52°2.5 mm⌄
Day≈72–83°
Night≈47–58°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
78°52°20%⌄
Day≈72–83°
Night≈47–58°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
82°55°20%⌄
Day≈77–88°
Night≈49–60°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
79°53°3.5 mm⌄
Day≈73–84°
Night≈47–58°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
73°49°20%⌄
Day≈67–78°
Night≈44–55°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
71°48°20%⌄
Day≈66–77°
Night≈43–54°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
74°50°2.9 mm⌄
Day≈69–80°
Night≈45–55°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
75°51°20%⌄
Day≈70–81°
Night≈45–56°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
79°53°20%⌄
Day≈74–84°
Night≈47–58°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Light rain (climatological)
79°53°1.9 mm⌄
Day≈74–85°
Night≈48–59°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
79°53°20%⌄
Day≈74–85°
Night≈48–58°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
76°51°20%⌄
Day≈71–82°
Night≈46–57°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
73°49°4.2 mm⌄
Day≈67–78°
Night≈44–55°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
70°47°20%⌄
Day≈64–75°
Night≈42–53°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
77°52°20%⌄
Day≈72–82°
Night≈46–57°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
77°52°5.1 mm⌄
Day≈72–83°
Night≈46–57°
Precip≈1.5 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 Arapahoe, 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.