Greendale · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Greendale & 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
75°
Fri, Aug 21
Coldest night
49°
Thu, Sep 3
Days with precip
6 / 14
of 14 forecast days
Nicest day
Fri, Aug 28
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
74° 54°
95% precip chance
Sat 29 – Sun 30 Aug
68° 55°
24% precip chance
Sat 5 – Sun 6 Sep
66° 49°
typical range
Sat 12 – Sun 13 Sep
63° 50°
typical range
30 days — Greendale
14 forecast + 16 climatology
Fri · Today Sunny
75°58°5.2 mm⌄
Wind8 mph N
Gusts19 mph
UV index7 – High
Precip chance69%
Sunrise06:33
Sunset20:22
Sat · Tomorrow Mostly cloudy
74°54°1.3 mm⌄
Wind8 mph E
Gusts19 mph
UV index7 – High
Precip chance57%
Sunrise06:34
Sunset20:20
Sunday 23/8 Rain
65°60°107.0 mm⌄
Wind17 mph E
Gusts31 mph
UV index1 – Low
Precip chance95%
Sunrise06:35
Sunset20:18
Monday 24/8 Fog
64°58°5.3 mm⌄
Wind7 mph S
Gusts22 mph
UV index5 – Moderate
Precip chance94%
Sunrise06:36
Sunset20:16
Tuesday 25/8 Sunny
66°56°0.4 mm⌄
Wind10 mph SW
Gusts20 mph
UV index5 – Moderate
Precip chance44%
Sunrise06:37
Sunset20:15
Wednesday 26/8 Sunny
66°53°0.2 mm⌄
Wind11 mph SW
Gusts18 mph
UV index5 – Moderate
Precip chance34%
Sunrise06:39
Sunset20:13
Thursday 27/8 Sunny
69°54°12%⌄
Wind8 mph S
Gusts15 mph
UV index6 – High
Precip chance12%
Sunrise06:40
Sunset20:11
Friday 28/8 Sunny
70°56°8%⌄
Wind5 mph SE
Gusts16 mph
UV index6 – High
Precip chance8%
Sunrise06:41
Sunset20:09
Saturday 29/8 Mostly cloudy
68°55°17%⌄
Wind10 mph SW
Gusts13 mph
UV index6 – High
Precip chance17%
Sunrise06:42
Sunset20:08
Sunday 30/8 Fog
68°56°24%⌄
Wind8 mph SW
Gusts13 mph
UV index6 – High
Precip chance24%
Sunrise06:43
Sunset20:06
Monday 31/8 Fog
68°55°26%⌄
Wind11 mph SW
Gusts20 mph
UV index5 – Moderate
Precip chance26%
Sunrise06:45
Sunset20:04
Tuesday 1/9 Showers
63°58°14.8 mm⌄
Wind16 mph S
Gusts37 mph
UV index4 – Moderate
Precip chance94%
Sunrise06:46
Sunset20:02
Wednesday 2/9 Sunny
70°55°2.7 mm⌄
Wind13 mph NW
Gusts23 mph
UV index6 – High
Precip chance62%
Sunrise06:47
Sunset20:00
Thursday 3/9 Mostly cloudy
63°49°10%⌄
Wind9 mph SW
Gusts21 mph
UV index5 – Moderate
Precip chance10%
Sunrise06:48
Sunset19:58
Friday 4/9 Rain (climatological)
61°49°22.8 mm⌄
Day≈56–67°
Night≈43–54°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Partly cloudy (climatological)
62°49°20%⌄
Day≈56–67°
Night≈44–55°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
66°51°20%⌄
Day≈60–71°
Night≈46–57°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Rain (climatological)
62°49°17.8 mm⌄
Day≈56–67°
Night≈44–54°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
58°47°20%⌄
Day≈52–63°
Night≈41–52°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
52°43°20%⌄
Day≈47–58°
Night≈38–49°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Rain (climatological)
56°45°35.6 mm⌄
Day≈50–61°
Night≈40–51°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
61°49°20%⌄
Day≈56–66°
Night≈43–54°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
63°50°20%⌄
Day≈58–68°
Night≈44–55°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
63°50°30.7 mm⌄
Day≈58–69°
Night≈45–55°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
59°47°20%⌄
Day≈54–65°
Night≈42–53°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
58°47°20%⌄
Day≈52–63°
Night≈41–52°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
54°44°19.8 mm⌄
Day≈48–59°
Night≈39–50°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
53°44°20%⌄
Day≈47–58°
Night≈38–49°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
57°46°20%⌄
Day≈51–62°
Night≈41–51°
Precip≈11.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
60°48°25.7 mm⌄
Day≈55–65°
Night≈43–53°
Precip≈11.7 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 Greendale, 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.