Langdon · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Langdon & 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
82°
Sun, Aug 30
Coldest night
41°
Mon, Sep 7
Days with precip
6 / 14
of 14 forecast days
Nicest day
Thu, Aug 27
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
82° 63°
75% precip chance
Sat 5 – Sun 6 Sep
63° 50°
88% precip chance
Sat 12 – Sun 13 Sep
56° 43°
typical range
Sat 19 – Sun 20 Sep
55° 41°
typical range
30 days — Langdon
14 forecast + 16 climatology
Tue · Today Sunny
73°59°0.8 mm⌄
Wind18 mph W
Gusts26 mph
UV index6 – Moderate
Precip chance41%
Sunrise06:40
Sunset20:30
Wed · Tomorrow Sunny
74°57°3%⌄
Wind14 mph N
Gusts28 mph
UV index6 – Moderate
Precip chance3%
Sunrise06:42
Sunset20:28
Thursday 27/8 Sunny
72°56°2%⌄
Wind9 mph NE
Gusts22 mph
UV index6 – High
Precip chance2%
Sunrise06:43
Sunset20:26
Friday 28/8 Mostly cloudy
76°56°10%⌄
Wind15 mph SE
Gusts28 mph
UV index5 – Moderate
Precip chance10%
Sunrise06:44
Sunset20:24
Saturday 29/8 Thunderstorms
82°63°0.2 mm⌄
Wind11 mph SE
Gusts25 mph
UV index6 – High
Precip chance19%
Sunrise06:46
Sunset20:22
Sunday 30/8 Mostly cloudy
82°66°15.9 mm⌄
Wind17 mph E
Gusts27 mph
UV index7 – High
Precip chance75%
Sunrise06:47
Sunset20:20
Monday 31/8 Showers
67°50°2.3 mm⌄
Wind22 mph NW
Gusts32 mph
UV index5 – Moderate
Precip chance63%
Sunrise06:49
Sunset20:18
Tuesday 1/9 Partly cloudy
61°48°20%⌄
Wind14 mph NW
Gusts23 mph
UV index5 – Moderate
Precip chance20%
Sunrise06:50
Sunset20:16
Wednesday 2/9 Mostly cloudy
64°53°1.1 mm⌄
Wind19 mph SE
Gusts35 mph
UV index4 – Moderate
Precip chance57%
Sunrise06:52
Sunset20:14
Thursday 3/9 Showers
56°49°33.4 mm⌄
Wind20 mph SE
Gusts38 mph
UV index3 – Moderate
Precip chance90%
Sunrise06:53
Sunset20:12
Friday 4/9 Mostly cloudy
55°47°30%⌄
Wind10 mph SE
Gusts21 mph
UV index3 – Moderate
Precip chance30%
Sunrise06:54
Sunset20:10
Saturday 5/9 Sunny
63°50°11%⌄
Wind18 mph SE
Gusts35 mph
UV index4 – Moderate
Precip chance11%
Sunrise06:56
Sunset20:08
Sunday 6/9 Showers
57°50°8.5 mm⌄
Wind24 mph SE
Gusts47 mph
UV index3 – Moderate
Precip chance88%
Sunrise06:57
Sunset20:06
Monday 7/9 Mostly cloudy
50°41°4.5 mm⌄
Wind26 mph W
Gusts43 mph
UV index3 – Moderate
Precip chance76%
Sunrise06:59
Sunset20:03
Tuesday 8/9 Rain (climatological)
56°44°10.2 mm⌄
Day≈51–62°
Night≈38–49°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
58°45°20%⌄
Day≈53–63°
Night≈39–50°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
63°48°20%⌄
Day≈58–68°
Night≈42–53°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
60°46°17.4 mm⌄
Day≈54–65°
Night≈40–51°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
56°44°20%⌄
Day≈51–61°
Night≈38–49°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
55°43°20%⌄
Day≈49–60°
Night≈37–48°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
52°41°8.7 mm⌄
Day≈47–57°
Night≈36–47°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
58°45°20%⌄
Day≈53–64°
Night≈40–50°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
60°46°20%⌄
Day≈55–66°
Night≈41–52°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
59°46°16.4 mm⌄
Day≈54–65°
Night≈40–51°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
57°44°20%⌄
Day≈52–63°
Night≈39–50°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
55°43°20%⌄
Day≈50–60°
Night≈38–48°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
52°41°10.6 mm⌄
Day≈47–58°
Night≈36–47°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
50°40°20%⌄
Day≈44–55°
Night≈35–45°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
58°45°20%⌄
Day≈53–64°
Night≈40–50°
Precip≈5.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
60°46°14.5 mm⌄
Day≈55–65°
Night≈40–51°
Precip≈5.7 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 Langdon, 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.