Pontiac · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Pontiac & 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
84°
Mon, Aug 31
Coldest night
59°
Sat, Aug 29
Days with precip
3 / 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
82° 59°
58% precip chance
Sat 5 – Sun 6 Sep
77° 57°
typical range
Sat 12 – Sun 13 Sep
70° 53°
typical range
Sat 19 – Sun 20 Sep
70° 53°
typical range
30 days — Pontiac
14 forecast + 16 climatology
Sun · Today Sunny
81°59°7%⌄
Wind9 mph NW
Gusts22 mph
UV index8 – High
Precip chance7%
Sunrise06:12
Sunset19:41
Mon · Tomorrow Mostly cloudy
75°60°1.0 mm⌄
Wind5 mph W
Gusts10 mph
UV index8 – High
Precip chance63%
Sunrise06:13
Sunset19:40
Tuesday 25/8 Mostly cloudy
76°64°0.2 mm⌄
Wind8 mph S
Gusts11 mph
UV index8 – High
Precip chance34%
Sunrise06:14
Sunset19:38
Wednesday 26/8 Sunny
82°67°2.2 mm⌄
Wind14 mph W
Gusts24 mph
UV index8 – High
Precip chance66%
Sunrise06:15
Sunset19:37
Thursday 27/8 Sunny
77°63°0.7 mm⌄
Wind11 mph NW
Gusts18 mph
UV index7 – High
Precip chance40%
Sunrise06:16
Sunset19:35
Friday 28/8 Sunny
75°62°15%⌄
Wind8 mph NW
Gusts15 mph
UV index6 – High
Precip chance15%
Sunrise06:17
Sunset19:33
Saturday 29/8 Mostly cloudy
69°59°0.8 mm⌄
Wind11 mph SE
Gusts21 mph
UV index5 – Moderate
Precip chance58%
Sunrise06:18
Sunset19:32
Sunday 30/8 Mostly cloudy
82°69°0.9 mm⌄
Wind15 mph S
Gusts25 mph
UV index7 – High
Precip chance51%
Sunrise06:19
Sunset19:30
Monday 31/8 Showers
84°68°18.4 mm⌄
Wind23 mph SW
Gusts35 mph
UV index7 – High
Precip chance86%
Sunrise06:20
Sunset19:29
Tuesday 1/9 Sunny
79°65°0.1 mm⌄
Wind9 mph SW
Gusts26 mph
UV index7 – High
Precip chance25%
Sunrise06:21
Sunset19:27
Wednesday 2/9 Showers
81°64°0.6 mm⌄
Wind11 mph NE
Gusts22 mph
UV index6 – High
Precip chance46%
Sunrise06:22
Sunset19:25
Thursday 3/9 Sunny
77°62°0.4 mm⌄
Wind10 mph NE
Gusts22 mph
UV index6 – High
Precip chance39%
Sunrise06:23
Sunset19:24
Friday 4/9 Sunny
77°60°9%⌄
Wind7 mph E
Gusts12 mph
UV index6 – High
Precip chance9%
Sunrise06:24
Sunset19:22
Saturday 5/9 Sunny
77°60°7%⌄
Wind8 mph E
Gusts10 mph
UV index7 – High
Precip chance7%
Sunrise06:25
Sunset19:21
Sunday 6/9 Rain (climatological)
72°57°2.9 mm⌄
Day≈66–77°
Night≈52–62°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
73°58°20%⌄
Day≈68–79°
Night≈53–63°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
76°60°20%⌄
Day≈71–81°
Night≈54–65°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Rain (climatological)
75°59°6.4 mm⌄
Day≈69–80°
Night≈53–64°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
67°54°20%⌄
Day≈61–72°
Night≈49–59°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
66°53°20%⌄
Day≈60–71°
Night≈48–59°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
65°53°5.7 mm⌄
Day≈60–71°
Night≈48–59°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
70°56°20%⌄
Day≈65–76°
Night≈51–62°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
73°58°20%⌄
Day≈68–79°
Night≈53–63°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
77°60°6.1 mm⌄
Day≈72–83°
Night≈55–66°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
70°56°20%⌄
Day≈65–76°
Night≈51–62°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
71°57°20%⌄
Day≈66–76°
Night≈51–62°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
66°53°3.3 mm⌄
Day≈60–71°
Night≈48–59°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
65°53°20%⌄
Day≈59–70°
Night≈47–58°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
70°56°20%⌄
Day≈64–75°
Night≈51–61°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
72°57°5.9 mm⌄
Day≈67–78°
Night≈52–63°
Precip≈2.2 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 Pontiac, 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.