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
27°
Thu, Aug 27
Coldest night
10°
Mon, Aug 31
Days with precip
7 / 14
of 14 forecast days
Nicest day
Fri, Sep 4
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
23° 15°
89% precip chance
Sat 5 – Sun 6 Sep
24° 13°
6% precip chance
Sat 12 – Sun 13 Sep
18° 10°
typical range
Sat 19 – Sun 20 Sep
18° 10°
typical range
30 days — Richelieu
14 forecast + 16 climatology
Thu · Today Showers
27°16°3.5 mm⌄
Wind11 mph S
Gusts26 mph
UV index7 – High
Precip chance72%
Sunrise06:08
Sunset19:40
Fri · Tomorrow Sunny
22°15°0.3 mm⌄
Wind11 mph SW
Gusts28 mph
UV index6 – High
Precip chance23%
Sunrise06:09
Sunset19:38
Saturday 29/8 Sunny
23°15°17%⌄
Wind11 mph W
Gusts22 mph
UV index6 – High
Precip chance17%
Sunrise06:11
Sunset19:36
Sunday 30/8 Showers
21°16°12.2 mm⌄
Wind13 mph SW
Gusts31 mph
UV index5 – Moderate
Precip chance89%
Sunrise06:12
Sunset19:35
Monday 31/8 Mostly cloudy
19°10°7.6 mm⌄
Wind10 mph NE
Gusts25 mph
UV index5 – Moderate
Precip chance78%
Sunrise06:13
Sunset19:33
Tuesday 1/9 Fog
20°14°3.1 mm⌄
Wind5 mph E
Gusts10 mph
UV index6 – High
Precip chance85%
Sunrise06:14
Sunset19:31
Wednesday 2/9 Fog
15°13°1.6 mm⌄
Wind7 mph N
Gusts16 mph
UV index3 – Moderate
Precip chance80%
Sunrise06:15
Sunset19:29
Thursday 3/9 Mostly cloudy
19°12°0.2 mm⌄
Wind9 mph NE
Gusts16 mph
UV index5 – Moderate
Precip chance30%
Sunrise06:17
Sunset19:27
Friday 4/9 Sunny
22°11°6%⌄
Wind5 mph E
Gusts13 mph
UV index6 – High
Precip chance6%
Sunrise06:18
Sunset19:25
Saturday 5/9 Sunny
24°13°5%⌄
Wind4 mph S
Gusts13 mph
UV index6 – High
Precip chance5%
Sunrise06:19
Sunset19:24
Sunday 6/9 Sunny
24°14°6%⌄
Wind6 mph S
Gusts16 mph
UV index6 – High
Precip chance6%
Sunrise06:20
Sunset19:22
Monday 7/9 Mostly cloudy
22°15°1.4 mm⌄
Wind16 mph S
Gusts28 mph
UV index5 – Moderate
Precip chance59%
Sunrise06:21
Sunset19:20
Tuesday 8/9 Mostly cloudy
17°14°0.3 mm⌄
Wind12 mph SW
Gusts22 mph
UV index4 – Moderate
Precip chance43%
Sunrise06:23
Sunset19:18
Wednesday 9/9 Showers
16°12°6.6 mm⌄
Wind8 mph SE
Gusts20 mph
UV index4 – Moderate
Precip chance89%
Sunrise06:24
Sunset19:16
Thursday 10/9 Rain (climatological)
16°9°4.0 mm⌄
Day≈13–19°
Night≈6–12°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
16°9°20%⌄
Day≈13–19°
Night≈6–12°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
17°10°20%⌄
Day≈14–20°
Night≈7–13°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
18°10°10.1 mm⌄
Day≈15–21°
Night≈7–13°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
14°8°20%⌄
Day≈11–17°
Night≈5–11°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
13°7°20%⌄
Day≈10–16°
Night≈4–10°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
14°8°10.7 mm⌄
Day≈11–17°
Night≈5–11°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
15°8°20%⌄
Day≈12–18°
Night≈5–11°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
19°11°20%⌄
Day≈16–22°
Night≈8–14°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
18°10°4.8 mm⌄
Day≈15–21°
Night≈7–13°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
18°10°20%⌄
Day≈15–21°
Night≈7–13°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
13°8°20%⌄
Day≈10–16°
Night≈5–11°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
12°7°7.7 mm⌄
Day≈9–15°
Night≈4–10°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
13°7°20%⌄
Day≈10–16°
Night≈4–10°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
16°9°20%⌄
Day≈13–19°
Night≈6–12°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
18°10°5.9 mm⌄
Day≈15–21°
Night≈7–13°
Precip≈3.2 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.