Clear Lake · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Clear 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
39°
Sat, Sep 5
Coldest night
7°
Wed, Sep 9
Days with precip
3 / 14
of 14 forecast days
Nicest day
Fri, Sep 11
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
36° 18°
78% precip chance
Sat 5 – Sun 6 Sep
39° 23°
36% precip chance
Sat 12 – Sun 13 Sep
28° 14°
typical range
Sat 19 – Sun 20 Sep
26° 15°
typical range
30 days — Clear Lake
14 forecast + 16 climatology
Sat · Today Rain
31°18°34.0 mm⌄
Wind20 mph S
Gusts39 mph
UV index7 – High
Precip chance78%
Sunrise06:34
Sunset19:54
Sun · Tomorrow Mostly cloudy
36°24°0.5 mm⌄
Wind15 mph S
Gusts35 mph
UV index8 – High
Precip chance36%
Sunrise06:35
Sunset19:52
Monday 31/8 Mostly cloudy
35°24°0.5 mm⌄
Wind15 mph SW
Gusts38 mph
UV index7 – High
Precip chance36%
Sunrise06:36
Sunset19:50
Tuesday 1/9 Mostly cloudy
33°24°0.1 mm⌄
Wind15 mph W
Gusts26 mph
UV index7 – High
Precip chance17%
Sunrise06:37
Sunset19:49
Wednesday 2/9 Sunny
31°18°0.5 mm⌄
Wind17 mph N
Gusts34 mph
UV index8 – Very high
Precip chance36%
Sunrise06:39
Sunset19:47
Thursday 3/9 Sunny
32°21°3.6 mm⌄
Wind18 mph S
Gusts28 mph
UV index8 – Very high
Precip chance58%
Sunrise06:40
Sunset19:45
Friday 4/9 Mostly cloudy
37°22°13%⌄
Wind12 mph SE
Gusts25 mph
UV index8 – Very high
Precip chance13%
Sunrise06:41
Sunset19:43
Saturday 5/9 Partly cloudy
39°25°0.1 mm⌄
Wind21 mph SW
Gusts30 mph
UV index8 – Very high
Precip chance17%
Sunrise06:42
Sunset19:42
Sunday 6/9 Showers
35°23°0.5 mm⌄
Wind19 mph N
Gusts27 mph
UV index8 – Very high
Precip chance36%
Sunrise06:43
Sunset19:40
Monday 7/9 Mostly cloudy
22°15°17%⌄
Wind13 mph N
Gusts29 mph
UV index5 – Moderate
Precip chance17%
Sunrise06:44
Sunset19:38
Tuesday 8/9 Showers
18°8°3.7 mm⌄
Wind13 mph NE
Gusts17 mph
UV index5 – Moderate
Precip chance62%
Sunrise06:45
Sunset19:36
Wednesday 9/9 Mostly cloudy
20°7°1.0 mm⌄
Wind14 mph NW
Gusts21 mph
UV index5 – Moderate
Precip chance48%
Sunrise06:46
Sunset19:35
Thursday 10/9 Sunny
21°11°5%⌄
Wind10 mph N
Gusts26 mph
UV index6 – High
Precip chance5%
Sunrise06:47
Sunset19:33
Friday 11/9 Mostly cloudy
21°13°7%⌄
Wind7 mph SE
Gusts11 mph
UV index6 – High
Precip chance7%
Sunrise06:48
Sunset19:31
Saturday 12/9 Rain (climatological)
25°14°11.0 mm⌄
Day≈22–28°
Night≈11–17°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
28°16°20%⌄
Day≈25–31°
Night≈13–19°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
26°15°20%⌄
Day≈23–29°
Night≈12–18°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
25°14°9.7 mm⌄
Day≈22–28°
Night≈11–17°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
24°13°20%⌄
Day≈21–27°
Night≈10–16°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
23°13°20%⌄
Day≈20–26°
Night≈10–16°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
23°13°10.7 mm⌄
Day≈20–26°
Night≈10–16°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
26°15°20%⌄
Day≈23–29°
Night≈12–18°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
26°15°20%⌄
Day≈23–29°
Night≈12–18°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
27°15°7.8 mm⌄
Day≈24–30°
Night≈12–18°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
25°14°20%⌄
Day≈22–28°
Night≈11–17°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
22°12°20%⌄
Day≈19–25°
Night≈9–15°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
22°13°6.8 mm⌄
Day≈19–25°
Night≈10–16°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
23°13°20%⌄
Day≈20–26°
Night≈10–16°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
26°15°20%⌄
Day≈23–29°
Night≈12–18°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Rain (climatological)
26°15°8.4 mm⌄
Day≈23–29°
Night≈12–18°
Precip≈3.8 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 Clear 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.