Pierson · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Pierson & 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
99°
Thu, Aug 20
Coldest night
70°
Sat, Aug 29
Days with precip
7 / 14
of 14 forecast days
Nicest day
Sun, Aug 30
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
99° 76°
25% precip chance
Sat 29 – Sun 30 Aug
95° 70°
6% precip chance
Sat 5 – Sun 6 Sep
97° 74°
typical range
Sat 12 – Sun 13 Sep
98° 71°
typical range
30 days — Pierson
14 forecast + 16 climatology
Thu · Today Sunny
99°74°12.1 mm⌄
Wind5 mph W
Gusts17 mph
UV index9 – Very high
Precip chance75%
Sunrise06:57
Sunset20:01
Fri · Tomorrow Sunny
99°76°1.3 mm⌄
Wind8 mph SW
Gusts17 mph
UV index10 – Very high
Precip chance57%
Sunrise06:57
Sunset20:00
Saturday 22/8 Sunny
99°76°0.2 mm⌄
Wind10 mph W
Gusts21 mph
UV index10 – Very high
Precip chance17%
Sunrise06:58
Sunset19:59
Sunday 23/8 Mostly cloudy
95°76°0.2 mm⌄
Wind8 mph SW
Gusts17 mph
UV index10 – Very high
Precip chance25%
Sunrise06:58
Sunset19:58
Monday 24/8 Sunny
98°75°0.1 mm⌄
Wind6 mph S
Gusts15 mph
UV index9 – Very high
Precip chance17%
Sunrise06:59
Sunset19:57
Tuesday 25/8 Sunny
97°76°1.0 mm⌄
Wind5 mph SW
Gusts10 mph
UV index8 – Very high
Precip chance57%
Sunrise06:59
Sunset19:56
Wednesday 26/8 Sunny
97°76°0.3 mm⌄
Wind10 mph W
Gusts18 mph
UV index8 – Very high
Precip chance36%
Sunrise07:00
Sunset19:54
Thursday 27/8 Mostly cloudy
85°75°1.0 mm⌄
Wind6 mph SW
Gusts17 mph
UV index7 – High
Precip chance59%
Sunrise07:00
Sunset19:53
Friday 28/8 Mostly cloudy
83°73°1.8 mm⌄
Wind10 mph SW
Gusts18 mph
UV index6 – High
Precip chance74%
Sunrise07:01
Sunset19:52
Saturday 29/8 Sunny
94°70°6%⌄
Wind10 mph SW
Gusts19 mph
UV index8 – Very high
Precip chance6%
Sunrise07:02
Sunset19:51
Sunday 30/8 Sunny
95°72°5%⌄
Wind7 mph SW
Gusts12 mph
UV index9 – Very high
Precip chance5%
Sunrise07:02
Sunset19:50
Monday 31/8 Showers
94°71°7.8 mm⌄
Wind8 mph E
Gusts18 mph
UV index7 – High
Precip chance73%
Sunrise07:03
Sunset19:49
Tuesday 1/9 Mostly cloudy
93°72°14.0 mm⌄
Wind10 mph E
Gusts15 mph
UV index8 – Very high
Precip chance84%
Sunrise07:03
Sunset19:48
Wednesday 2/9 Mostly cloudy
88°73°3.3 mm⌄
Wind6 mph E
Gusts15 mph
UV index7 – High
Precip chance78%
Sunrise07:04
Sunset19:47
Thursday 3/9 Rain (climatological)
89°71°7.2 mm⌄
Day≈84–95°
Night≈65–76°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Partly cloudy (climatological)
94°73°20%⌄
Day≈88–99°
Night≈68–79°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Partly cloudy (climatological)
97°76°20%⌄
Day≈92–103°
Night≈70–81°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Rain (climatological)
95°74°10.7 mm⌄
Day≈90–101°
Night≈69–80°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
90°71°20%⌄
Day≈85–96°
Night≈66–77°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
86°69°20%⌄
Day≈81–91°
Night≈63–74°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Rain (climatological)
88°70°5.3 mm⌄
Day≈83–94°
Night≈65–76°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
90°71°20%⌄
Day≈84–95°
Night≈66–76°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
92°73°20%⌄
Day≈87–98°
Night≈67–78°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
98°76°6.0 mm⌄
Day≈92–103°
Night≈70–81°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
91°71°20%⌄
Day≈85–96°
Night≈66–77°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
89°70°20%⌄
Day≈83–94°
Night≈65–76°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
88°70°9.7 mm⌄
Day≈83–93°
Night≈65–75°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
87°70°20%⌄
Day≈82–93°
Night≈64–75°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
90°71°20%⌄
Day≈84–95°
Night≈66–76°
Precip≈3.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
94°74°9.4 mm⌄
Day≈89–100°
Night≈68–79°
Precip≈3.7 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 Pierson, 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.