Richelieu · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Richelieu & 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
79°
Thu, Aug 27
Coldest night
50°
Mon, Aug 31
Days with precip
4 / 14
of 14 forecast days
Nicest day
Mon, Aug 31
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
74° 54°
72% precip chance
Sat 5 – Sun 6 Sep
79° 57°
4% precip chance
Sat 12 – Sun 13 Sep
69° 49°
typical range
Sat 19 – Sun 20 Sep
69° 50°
typical range
30 days — Richelieu
14 forecast + 16 climatology
Thu · Today Mostly cloudy
79°61°3.3 mm⌄
Wind11 mph SE
Gusts25 mph
UV index7 – High
Precip chance73%
Sunrise06:08
Sunset19:40
Fri · Tomorrow Partly cloudy
71°59°0.2 mm⌄
Wind12 mph W
Gusts23 mph
UV index6 – High
Precip chance21%
Sunrise06:09
Sunset19:38
Saturday 29/8 Sunny
74°54°4%⌄
Wind12 mph SW
Gusts26 mph
UV index6 – High
Precip chance4%
Sunrise06:11
Sunset19:36
Sunday 30/8 Mostly cloudy
74°55°4.3 mm⌄
Wind14 mph W
Gusts27 mph
UV index5 – Moderate
Precip chance72%
Sunrise06:12
Sunset19:35
Monday 31/8 Sunny
69°50°7%⌄
Wind10 mph NE
Gusts25 mph
UV index6 – High
Precip chance7%
Sunrise06:13
Sunset19:33
Tuesday 1/9 Mostly cloudy
72°53°8%⌄
Wind10 mph NE
Gusts21 mph
UV index6 – High
Precip chance8%
Sunrise06:14
Sunset19:31
Wednesday 2/9 Mostly cloudy
75°57°15%⌄
Wind11 mph S
Gusts23 mph
UV index6 – High
Precip chance15%
Sunrise06:15
Sunset19:29
Thursday 3/9 Sunny
76°58°6%⌄
Wind8 mph S
Gusts23 mph
UV index6 – High
Precip chance6%
Sunrise06:17
Sunset19:27
Friday 4/9 Sunny
78°59°3%⌄
Wind8 mph E
Gusts12 mph
UV index7 – High
Precip chance3%
Sunrise06:18
Sunset19:25
Saturday 5/9 Sunny
79°57°3%⌄
Wind6 mph E
Gusts12 mph
UV index7 – High
Precip chance3%
Sunrise06:19
Sunset19:24
Sunday 6/9 Sunny
79°61°4%⌄
Wind7 mph SW
Gusts16 mph
UV index7 – High
Precip chance4%
Sunrise06:20
Sunset19:22
Monday 7/9 Mostly cloudy
78°55°2.9 mm⌄
Wind15 mph SW
Gusts26 mph
UV index6 – High
Precip chance70%
Sunrise06:21
Sunset19:20
Tuesday 8/9 Sunny
67°51°0.1 mm⌄
Wind9 mph E
Gusts20 mph
UV index5 – Moderate
Precip chance17%
Sunrise06:23
Sunset19:18
Wednesday 9/9 Showers
62°54°33.5 mm⌄
Wind19 mph SW
Gusts38 mph
UV index4 – Moderate
Precip chance90%
Sunrise06:24
Sunset19:16
Thursday 10/9 Rain (climatological)
65°48°4.8 mm⌄
Day≈59–70°
Night≈42–53°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
66°48°20%⌄
Day≈60–71°
Night≈43–54°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
67°49°20%⌄
Day≈62–73°
Night≈44–55°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
69°50°12.2 mm⌄
Day≈63–74°
Night≈45–56°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
62°46°20%⌄
Day≈56–67°
Night≈40–51°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
59°44°20%⌄
Day≈54–65°
Night≈39–50°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
61°46°12.8 mm⌄
Day≈56–66°
Night≈40–51°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
63°47°20%⌄
Day≈57–68°
Night≈41–52°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
71°51°20%⌄
Day≈65–76°
Night≈46–57°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
69°50°5.8 mm⌄
Day≈64–74°
Night≈45–56°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
69°50°20%⌄
Day≈63–74°
Night≈45–55°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
60°45°20%⌄
Day≈55–66°
Night≈40–51°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
59°44°9.3 mm⌄
Day≈53–64°
Night≈39–49°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
59°45°20%⌄
Day≈54–65°
Night≈39–50°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
65°48°20%⌄
Day≈60–70°
Night≈42–53°
Precip≈3.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
69°50°7.0 mm⌄
Day≈64–75°
Night≈45–56°
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 Richelieu, 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.