Pierrefonds · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Pierrefonds & 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
80°
Thu, Aug 27
Coldest night
47°
Sat, Aug 29
Days with precip
4 / 14
of 14 forecast days
Nicest day
Thu, Sep 3
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
74° 47°
53% precip chance
Sat 5 – Sun 6 Sep
74° 51°
5% precip chance
Sat 12 – Sun 13 Sep
60° 42°
typical range
Sat 19 – Sun 20 Sep
62° 42°
typical range
30 days — Pierrefonds
14 forecast + 16 climatology
Mon · Today Sunny
72°58°11%⌄
Wind10 mph SW
Gusts18 mph
UV index6 – Moderate
Precip chance11%
Sunrise06:07
Sunset19:48
Tue · Tomorrow Showers
70°61°0.8 mm⌄
Wind11 mph W
Gusts15 mph
UV index6 – Moderate
Precip chance62%
Sunrise06:08
Sunset19:46
Wednesday 26/8 Sunny
73°55°14%⌄
Wind7 mph W
Gusts16 mph
UV index6 – High
Precip chance14%
Sunrise06:09
Sunset19:44
Thursday 27/8 Mostly cloudy
80°59°3.9 mm⌄
Wind8 mph S
Gusts15 mph
UV index6 – High
Precip chance76%
Sunrise06:11
Sunset19:43
Friday 28/8 Partly cloudy
70°52°1.9 mm⌄
Wind14 mph W
Gusts24 mph
UV index6 – High
Precip chance66%
Sunrise06:12
Sunset19:41
Saturday 29/8 Sunny
67°47°6%⌄
Wind11 mph SW
Gusts16 mph
UV index5 – Moderate
Precip chance6%
Sunrise06:13
Sunset19:39
Sunday 30/8 Mostly cloudy
74°50°0.8 mm⌄
Wind7 mph S
Gusts11 mph
UV index5 – Moderate
Precip chance53%
Sunrise06:14
Sunset19:37
Monday 31/8 Sunny
72°53°1.0 mm⌄
Wind15 mph NW
Gusts35 mph
UV index6 – High
Precip chance57%
Sunrise06:15
Sunset19:35
Tuesday 1/9 Sunny
69°48°6%⌄
Wind11 mph W
Gusts15 mph
UV index6 – High
Precip chance6%
Sunrise06:17
Sunset19:33
Wednesday 2/9 Mostly cloudy
71°50°11%⌄
Wind7 mph SW
Gusts13 mph
UV index6 – High
Precip chance11%
Sunrise06:18
Sunset19:32
Thursday 3/9 Sunny
71°53°9%⌄
Wind7 mph SW
Gusts19 mph
UV index6 – High
Precip chance9%
Sunrise06:19
Sunset19:30
Friday 4/9 Sunny
70°52°7%⌄
Wind10 mph NE
Gusts19 mph
UV index6 – High
Precip chance7%
Sunrise06:20
Sunset19:28
Saturday 5/9 Sunny
74°51°5%⌄
Wind7 mph NE
Gusts14 mph
UV index6 – High
Precip chance5%
Sunrise06:22
Sunset19:26
Sunday 6/9 Sunny
74°53°5%⌄
Wind6 mph NE
Gusts12 mph
UV index6 – High
Precip chance5%
Sunrise06:23
Sunset19:24
Tuesday 8/9 Light rain (climatological)
64°46°1.8 mm⌄
Day≈58–69°
Night≈40–51°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
68°48°20%⌄
Day≈62–73°
Night≈42–53°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
65°46°20%⌄
Day≈60–71°
Night≈41–52°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Light rain (climatological)
65°46°1.7 mm⌄
Day≈60–71°
Night≈41–52°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
60°43°20%⌄
Day≈55–66°
Night≈38–49°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
59°42°20%⌄
Day≈53–64°
Night≈37–48°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Light rain (climatological)
59°42°1.4 mm⌄
Day≈53–64°
Night≈37–48°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
62°44°20%⌄
Day≈56–67°
Night≈39–49°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
68°48°20%⌄
Day≈63–74°
Night≈43–53°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
69°49°2.4 mm⌄
Day≈64–74°
Night≈43–54°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
62°44°20%⌄
Day≈57–67°
Night≈39–50°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
62°44°20%⌄
Day≈56–67°
Night≈39–49°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Light rain (climatological)
59°42°1.8 mm⌄
Day≈54–64°
Night≈37–48°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
62°44°20%⌄
Day≈56–67°
Night≈39–49°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
63°45°20%⌄
Day≈57–68°
Night≈39–50°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Light rain (climatological)
68°48°1.0 mm⌄
Day≈63–74°
Night≈43–53°
Precip≈0.7 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 Pierrefonds, 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.