Harveys Lake · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Harveys Lake & 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°
Wed, Sep 9
Coldest night
49°
Wed, Sep 16
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 12 – Sun 13 Sep
78° 56°
17% precip chance
Sat 19 – Sun 20 Sep
76° 58°
typical range
Sat 26 – Sun 27 Sep
76° 55°
typical range
Sat 3 – Sun 4 Oct
63° 43°
typical range
30 days — Harveys Lake
14 forecast + 16 climatology
Sun · Today Sunny
74°56°9%⌄
Wind8 mph N
Gusts16 mph
UV index6 – High
Precip chance9%
Sunrise06:35
Sunset19:29
Mon · Tomorrow Sunny
71°54°6%⌄
Wind6 mph N
Gusts14 mph
UV index7 – High
Precip chance6%
Sunrise06:36
Sunset19:27
Tuesday 8/9 Mostly cloudy
75°56°14%⌄
Wind5 mph SW
Gusts14 mph
UV index7 – High
Precip chance14%
Sunrise06:37
Sunset19:26
Wednesday 9/9 Mostly cloudy
81°65°0.9 mm⌄
Wind13 mph SW
Gusts31 mph
UV index6 – High
Precip chance48%
Sunrise06:38
Sunset19:24
Thursday 10/9 Mostly cloudy
72°62°24.1 mm⌄
Wind12 mph NW
Gusts27 mph
UV index6 – High
Precip chance92%
Sunrise06:39
Sunset19:22
Friday 11/9 Sunny
71°58°1.8 mm⌄
Wind6 mph N
Gusts21 mph
UV index6 – High
Precip chance61%
Sunrise06:40
Sunset19:20
Saturday 12/9 Partly cloudy
76°56°14%⌄
Wind8 mph SW
Gusts12 mph
UV index6 – High
Precip chance14%
Sunrise06:41
Sunset19:19
Sunday 13/9 Mostly cloudy
78°63°17%⌄
Wind11 mph S
Gusts26 mph
UV index7 – High
Precip chance17%
Sunrise06:42
Sunset19:17
Monday 14/9 Fog
81°66°0.7 mm⌄
Wind9 mph SW
Gusts23 mph
UV index7 – High
Precip chance50%
Sunrise06:43
Sunset19:15
Tuesday 15/9 Sunny
72°53°0.3 mm⌄
Wind9 mph N
Gusts14 mph
UV index5 – Moderate
Precip chance36%
Sunrise06:44
Sunset19:14
Wednesday 16/9 Sunny
68°49°8%⌄
Wind4 mph SW
Gusts13 mph
UV index5 – Moderate
Precip chance8%
Sunrise06:45
Sunset19:12
Thursday 17/9 Mostly cloudy
67°55°20%⌄
Wind10 mph SW
Gusts15 mph
UV index4 – Moderate
Precip chance20%
Sunrise06:46
Sunset19:10
Friday 18/9 Sunny
75°58°11%⌄
Wind6 mph SW
Gusts15 mph
UV index6 – High
Precip chance11%
Sunrise06:47
Sunset19:08
Saturday 19/9 Mostly cloudy
71°58°0.3 mm⌄
Wind8 mph S
Gusts17 mph
UV index5 – Moderate
Precip chance45%
Sunrise06:48
Sunset19:07
Sunday 20/9 Rain (climatological)
76°59°3.7 mm⌄
Day≈70–81°
Night≈54–64°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
78°60°20%⌄
Day≈72–83°
Night≈55–65°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
76°59°20%⌄
Day≈71–81°
Night≈54–64°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
74°58°3.9 mm⌄
Day≈69–80°
Night≈53–63°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
70°55°20%⌄
Day≈65–75°
Night≈50–61°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
67°54°20%⌄
Day≈62–73°
Night≈49–59°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
69°55°4.3 mm⌄
Day≈64–75°
Night≈50–60°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
76°59°20%⌄
Day≈71–82°
Night≈54–65°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
80°61°20%⌄
Day≈74–85°
Night≈56–67°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Rain (climatological)
77°60°5.5 mm⌄
Day≈72–83°
Night≈55–65°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
77°60°20%⌄
Day≈72–82°
Night≈54–65°
Precip≈2.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Partly cloudy (climatological)
60°45°20%⌄
Day≈55–65°
Night≈40–51°
Precip≈2.4 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 2/10 Rain (climatological)
56°43°6.7 mm⌄
Day≈50–61°
Night≈37–48°
Precip≈2.4 in / October
(climatological)Typical range for these dates · 1991–2020
Saturday 3/10 Partly cloudy (climatological)
55°43°20%⌄
Day≈50–61°
Night≈37–48°
Precip≈2.4 in / October
(climatological)Typical range for these dates · 1991–2020
Sunday 4/10 Partly cloudy (climatological)
63°47°20%⌄
Day≈58–68°
Night≈42–53°
Precip≈2.4 in / October
(climatological)Typical range for these dates · 1991–2020
Monday 5/10 Rain (climatological)
66°49°7.3 mm⌄
Day≈61–71°
Night≈44–54°
Precip≈2.4 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 Harveys Lake, 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.