Harwood Heights · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Harwood Heights & 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
35°
Thu, Sep 3
Coldest night
18°
Mon, Sep 7
Days with precip
2 / 14
of 14 forecast days
Nicest day
Sun, Sep 6
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
29° 20°
63% precip chance
Sat 12 – Sun 13 Sep
35° 26°
4% precip chance
Sat 19 – Sun 20 Sep
35° 22°
typical range
Sat 26 – Sun 27 Sep
34° 23°
typical range
30 days — Harwood Heights
14 forecast + 16 climatology
Thu · Today Sunny
35°25°1.9 mm⌄
Wind11 mph SW
Gusts32 mph
UV index5 – Moderate
Precip chance57%
Sunrise06:19
Sunset19:22
Fri · Tomorrow Mostly cloudy
34°23°14%⌄
Wind12 mph NE
Gusts27 mph
UV index4 – Moderate
Precip chance14%
Sunrise06:20
Sunset19:20
Saturday 5/9 Sunny
29°22°3.8 mm⌄
Wind11 mph NE
Gusts22 mph
UV index7 – High
Precip chance63%
Sunrise06:21
Sunset19:18
Sunday 6/9 Sunny
25°20°6%⌄
Wind11 mph E
Gusts21 mph
UV index7 – High
Precip chance6%
Sunrise06:22
Sunset19:17
Monday 7/9 Sunny
26°18°5%⌄
Wind11 mph E
Gusts20 mph
UV index7 – High
Precip chance5%
Sunrise06:23
Sunset19:15
Tuesday 8/9 Sunny
33°21°5%⌄
Wind13 mph SW
Gusts33 mph
UV index8 – Very high
Precip chance5%
Sunrise06:24
Sunset19:13
Wednesday 9/9 Mostly cloudy
35°27°5%⌄
Wind15 mph SW
Gusts38 mph
UV index8 – Very high
Precip chance5%
Sunrise06:25
Sunset19:11
Thursday 10/9 Sunny
26°19°17%⌄
Wind11 mph NE
Gusts17 mph
UV index6 – High
Precip chance17%
Sunrise06:26
Sunset19:10
Friday 11/9 Sunny
35°19°4%⌄
Wind10 mph SW
Gusts27 mph
UV index8 – Very high
Precip chance4%
Sunrise06:27
Sunset19:08
Saturday 12/9 Sunny
35°28°2%⌄
Wind15 mph SW
Gusts31 mph
UV index8 – Very high
Precip chance2%
Sunrise06:28
Sunset19:06
Sunday 13/9 Sunny
35°26°4%⌄
Wind17 mph W
Gusts33 mph
UV index9 – Very high
Precip chance4%
Sunrise06:29
Sunset19:04
Monday 14/9 Sunny
31°22°1%⌄
Wind7 mph NW
Gusts22 mph
UV index8 – Very high
Precip chance1%
Sunrise06:30
Sunset19:03
Tuesday 15/9 Sunny
34°23°1%⌄
Wind6 mph SW
Gusts11 mph
UV index8 – Very high
Precip chance1%
Sunrise06:31
Sunset19:01
Wednesday 16/9 Sunny
28°20°0.4 mm⌄
Wind11 mph N
Gusts21 mph
UV index6 – High
Precip chance36%
Sunrise06:32
Sunset18:59
Thursday 17/9 Light rain (climatological)
32°23°1.2 mm⌄
Day≈29–35°
Night≈20–26°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
35°24°20%⌄
Day≈32–38°
Night≈21–27°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
35°25°20%⌄
Day≈32–38°
Night≈22–28°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Light rain (climatological)
32°22°0.9 mm⌄
Day≈29–35°
Night≈19–25°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
30°21°20%⌄
Day≈27–33°
Night≈18–24°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
28°20°20%⌄
Day≈25–31°
Night≈17–23°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Light rain (climatological)
31°22°0.8 mm⌄
Day≈28–34°
Night≈19–25°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
31°22°20%⌄
Day≈28–34°
Night≈19–25°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
35°24°20%⌄
Day≈32–38°
Night≈21–27°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Light rain (climatological)
34°24°1.9 mm⌄
Day≈31–37°
Night≈21–27°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
32°23°20%⌄
Day≈29–35°
Night≈20–26°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
31°22°20%⌄
Day≈28–34°
Night≈19–25°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Light rain (climatological)
29°21°1.7 mm⌄
Day≈26–32°
Night≈18–24°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
31°22°20%⌄
Day≈28–34°
Night≈19–25°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Partly cloudy (climatological)
23°15°20%⌄
Day≈20–26°
Night≈12–18°
Precip≈0.6 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 2/10 Light rain (climatological)
26°17°1.9 mm⌄
Day≈23–29°
Night≈14–20°
Precip≈0.6 in / October
(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 Harwood Heights, 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.