Montmagny · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Montmagny & 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
78°
Thu, Aug 27
Coldest night
45°
Mon, Aug 31
Days with precip
6 / 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
69° 47°
70% precip chance
Sat 5 – Sun 6 Sep
66° 54°
87% precip chance
Sat 12 – Sun 13 Sep
60° 43°
typical range
Sat 19 – Sun 20 Sep
61° 45°
typical range
30 days — Montmagny
14 forecast + 16 climatology
Thu · Today Sunny
78°56°28.0 mm⌄
Wind11 mph SW
Gusts27 mph
UV index6 – Moderate
Precip chance72%
Sunrise05:55
Sunset19:32
Fri · Tomorrow Showers
64°51°150.8 mm⌄
Wind11 mph W
Gusts19 mph
UV index5 – Moderate
Precip chance85%
Sunrise05:56
Sunset19:30
Saturday 29/8 Sunny
65°48°0.2 mm⌄
Wind13 mph SW
Gusts24 mph
UV index5 – Moderate
Precip chance18%
Sunrise05:57
Sunset19:28
Sunday 30/8 Showers
69°47°2.6 mm⌄
Wind14 mph SW
Gusts23 mph
UV index5 – Moderate
Precip chance70%
Sunrise05:59
Sunset19:26
Monday 31/8 Sunny
66°45°7%⌄
Wind11 mph S
Gusts15 mph
UV index5 – Moderate
Precip chance7%
Sunrise06:00
Sunset19:24
Tuesday 1/9 Mostly cloudy
64°49°10%⌄
Wind13 mph E
Gusts17 mph
UV index5 – Moderate
Precip chance10%
Sunrise06:01
Sunset19:22
Wednesday 2/9 Mostly cloudy
65°51°17%⌄
Wind8 mph NE
Gusts15 mph
UV index4 – Moderate
Precip chance17%
Sunrise06:03
Sunset19:20
Thursday 3/9 Fog
63°56°6.6 mm⌄
Wind5 mph SW
Gusts14 mph
UV index4 – Moderate
Precip chance91%
Sunrise06:04
Sunset19:18
Friday 4/9 Fog
75°60°1.6 mm⌄
Wind10 mph SW
Gusts16 mph
UV index6 – High
Precip chance70%
Sunrise06:05
Sunset19:16
Saturday 5/9 Mostly cloudy
66°54°15%⌄
Wind5 mph N
Gusts15 mph
UV index5 – Moderate
Precip chance15%
Sunrise06:07
Sunset19:14
Sunday 6/9 Showers
60°55°5.4 mm⌄
Wind11 mph NE
Gusts24 mph
UV index3 – Moderate
Precip chance87%
Sunrise06:08
Sunset19:12
Monday 7/9 Fog
65°55°0.7 mm⌄
Wind13 mph W
Gusts24 mph
UV index5 – Moderate
Precip chance58%
Sunrise06:09
Sunset19:10
Tuesday 8/9 Mostly cloudy
65°54°11%⌄
Wind16 mph NW
Gusts25 mph
UV index5 – Moderate
Precip chance11%
Sunrise06:10
Sunset19:08
Wednesday 9/9 Mostly cloudy
58°49°14%⌄
Wind10 mph W
Gusts19 mph
UV index4 – Moderate
Precip chance14%
Sunrise06:12
Sunset19:06
Thursday 10/9 Rain (climatological)
57°44°38.0 mm⌄
Day≈52–63°
Night≈39–49°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
58°44°20%⌄
Day≈53–64°
Night≈39–50°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
60°46°20%⌄
Day≈54–65°
Night≈40–51°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
56°43°23.0 mm⌄
Day≈51–61°
Night≈38–49°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
57°44°20%⌄
Day≈51–62°
Night≈38–49°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
55°42°20%⌄
Day≈49–60°
Night≈37–48°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
53°41°36.0 mm⌄
Day≈47–58°
Night≈36–47°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
59°45°20%⌄
Day≈53–64°
Night≈39–50°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
62°47°20%⌄
Day≈56–67°
Night≈41–52°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
61°46°30.0 mm⌄
Day≈55–66°
Night≈41–52°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
59°45°20%⌄
Day≈54–65°
Night≈40–51°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
53°41°20%⌄
Day≈47–58°
Night≈36–47°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
50°40°20.0 mm⌄
Day≈45–55°
Night≈34–45°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
55°43°20%⌄
Day≈50–60°
Night≈37–48°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
59°45°20%⌄
Day≈53–64°
Night≈39–50°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
58°45°32.0 mm⌄
Day≈53–64°
Night≈39–50°
Precip≈11.8 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 Montmagny, 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.