Greenway-Chaplin · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Greenway-Chaplin & 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
81°
Sun, Aug 30
Coldest night
49°
Mon, Sep 7
Days with precip
3 / 14
of 14 forecast days
Nicest day
Mon, Aug 31
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
81° 50°
10% precip chance
Sat 5 – Sun 6 Sep
65° 51°
47% precip chance
Sat 12 – Sun 13 Sep
57° 43°
typical range
Sat 19 – Sun 20 Sep
61° 43°
typical range
30 days — Greenway-Chaplin
14 forecast + 16 climatology
Tue · Today Partly cloudy
73°55°0.3 mm⌄
Wind13 mph NW
Gusts25 mph
UV index7 – High
Precip chance36%
Sunrise06:37
Sunset20:09
Wed · Tomorrow Sunny
78°57°8%⌄
Wind15 mph S
Gusts23 mph
UV index6 – Moderate
Precip chance8%
Sunrise06:38
Sunset20:07
Thursday 27/8 Showers
74°62°11.8 mm⌄
Wind14 mph S
Gusts32 mph
UV index7 – High
Precip chance81%
Sunrise06:39
Sunset20:05
Friday 28/8 Sunny
77°55°0.4 mm⌄
Wind13 mph NW
Gusts18 mph
UV index6 – High
Precip chance36%
Sunrise06:41
Sunset20:04
Saturday 29/8 Sunny
76°50°6%⌄
Wind9 mph SE
Gusts17 mph
UV index6 – High
Precip chance6%
Sunrise06:42
Sunset20:02
Sunday 30/8 Mostly cloudy
81°59°10%⌄
Wind17 mph SW
Gusts29 mph
UV index6 – High
Precip chance10%
Sunrise06:43
Sunset20:00
Monday 31/8 Sunny
71°58°5%⌄
Wind9 mph E
Gusts19 mph
UV index6 – High
Precip chance5%
Sunrise06:44
Sunset19:58
Tuesday 1/9 Showers
72°58°11.0 mm⌄
Wind17 mph W
Gusts29 mph
UV index5 – Moderate
Precip chance90%
Sunrise06:45
Sunset19:57
Wednesday 2/9 Showers
63°52°0.3 mm⌄
Wind14 mph N
Gusts24 mph
UV index5 – Moderate
Precip chance36%
Sunrise06:46
Sunset19:55
Thursday 3/9 Showers
58°50°1.1 mm⌄
Wind9 mph NW
Gusts20 mph
UV index3 – Moderate
Precip chance65%
Sunrise06:47
Sunset19:53
Friday 4/9 Mostly cloudy
61°50°0.3 mm⌄
Wind7 mph N
Gusts12 mph
UV index4 – Moderate
Precip chance44%
Sunrise06:48
Sunset19:51
Saturday 5/9 Mostly cloudy
60°52°0.5 mm⌄
Wind10 mph N
Gusts24 mph
UV index5 – Moderate
Precip chance47%
Sunrise06:49
Sunset19:50
Sunday 6/9 Sunny
65°51°5%⌄
Wind14 mph N
Gusts26 mph
UV index5 – Moderate
Precip chance5%
Sunrise06:50
Sunset19:48
Monday 7/9 Sunny
66°49°3%⌄
Wind8 mph NE
Gusts16 mph
UV index5 – Moderate
Precip chance3%
Sunrise06:52
Sunset19:46
Tuesday 8/9 Rain (climatological)
63°48°6.3 mm⌄
Day≈57–68°
Night≈42–53°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
64°48°20%⌄
Day≈59–70°
Night≈43–54°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
65°49°20%⌄
Day≈60–71°
Night≈44–55°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
66°50°6.5 mm⌄
Day≈61–71°
Night≈44–55°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
57°44°20%⌄
Day≈52–63°
Night≈39–50°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
55°43°20%⌄
Day≈50–61°
Night≈38–48°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
60°46°4.1 mm⌄
Day≈55–65°
Night≈41–51°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
62°47°20%⌄
Day≈57–68°
Night≈42–53°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
63°48°20%⌄
Day≈58–68°
Night≈42–53°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
64°49°6.0 mm⌄
Day≈59–70°
Night≈43–54°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
62°47°20%⌄
Day≈56–67°
Night≈42–52°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
61°47°20%⌄
Day≈56–66°
Night≈41–52°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
56°43°3.2 mm⌄
Day≈50–61°
Night≈38–49°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
56°44°20%⌄
Day≈51–61°
Night≈38–49°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
63°48°20%⌄
Day≈58–68°
Night≈42–53°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
64°48°3.2 mm⌄
Day≈58–69°
Night≈43–54°
Precip≈2.2 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 Greenway-Chaplin, 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.