McKernan · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
McKernan & 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
79°
Sat, Aug 22
Coldest night
44°
Mon, Aug 31
Days with precip
3 / 14
of 14 forecast days
Nicest day
Tue, Aug 25
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
79° 53°
71% precip chance
Sat 29 – Sun 30 Aug
72° 46°
57% precip chance
Sat 5 – Sun 6 Sep
59° 41°
typical range
Sat 12 – Sun 13 Sep
60° 42°
typical range
30 days — McKernan
14 forecast + 16 climatology
Fri · Today Sunny
74°56°7%⌄
Wind11 mph S
Gusts14 mph
UV index6 – Moderate
Precip chance7%
Sunrise06:24
Sunset20:50
Sat · Tomorrow Mostly cloudy
79°62°13%⌄
Wind11 mph S
Gusts22 mph
UV index4 – Moderate
Precip chance13%
Sunrise06:25
Sunset20:47
Sunday 23/8 Sunny
74°53°5.1 mm⌄
Wind21 mph NW
Gusts36 mph
UV index5 – Moderate
Precip chance71%
Sunrise06:27
Sunset20:45
Monday 24/8 Sunny
71°55°6%⌄
Wind15 mph W
Gusts36 mph
UV index5 – Moderate
Precip chance6%
Sunrise06:29
Sunset20:43
Tuesday 25/8 Sunny
70°56°6%⌄
Wind9 mph SE
Gusts21 mph
UV index6 – High
Precip chance6%
Sunrise06:31
Sunset20:41
Wednesday 26/8 Sunny
79°58°5%⌄
Wind13 mph S
Gusts30 mph
UV index7 – High
Precip chance5%
Sunrise06:32
Sunset20:38
Thursday 27/8 Mostly cloudy
60°47°14%⌄
Wind16 mph W
Gusts29 mph
UV index4 – Moderate
Precip chance14%
Sunrise06:34
Sunset20:36
Friday 28/8 Mostly cloudy
56°47°23%⌄
Wind17 mph W
Gusts35 mph
UV index3 – Moderate
Precip chance23%
Sunrise06:36
Sunset20:34
Saturday 29/8 Partly cloudy
63°49°25%⌄
Wind13 mph E
Gusts31 mph
UV index5 – Moderate
Precip chance25%
Sunrise06:38
Sunset20:31
Sunday 30/8 Sunny
72°46°1.2 mm⌄
Wind22 mph W
Gusts37 mph
UV index6 – High
Precip chance57%
Sunrise06:39
Sunset20:29
Monday 31/8 Showers
52°44°3.2 mm⌄
Wind20 mph NW
Gusts33 mph
UV index3 – Moderate
Precip chance84%
Sunrise06:41
Sunset20:26
Tuesday 1/9 Mostly cloudy
63°48°19%⌄
Wind10 mph SE
Gusts15 mph
UV index4 – Moderate
Precip chance19%
Sunrise06:43
Sunset20:24
Wednesday 2/9 Mostly cloudy
63°54°0.1 mm⌄
Wind10 mph E
Gusts17 mph
UV index4 – Moderate
Precip chance21%
Sunrise06:45
Sunset20:22
Thursday 3/9 Sunny
63°50°8%⌄
Wind6 mph E
Gusts11 mph
UV index5 – Moderate
Precip chance8%
Sunrise06:46
Sunset20:19
Friday 4/9 Rain (climatological)
55°41°2.2 mm⌄
Day≈50–60°
Night≈35–46°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Partly cloudy (climatological)
56°41°20%⌄
Day≈51–62°
Night≈36–47°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
59°43°20%⌄
Day≈54–65°
Night≈38–49°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Light rain (climatological)
58°43°1.6 mm⌄
Day≈53–64°
Night≈37–48°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
52°39°20%⌄
Day≈47–58°
Night≈34–44°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
52°39°20%⌄
Day≈46–57°
Night≈33–44°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Rain (climatological)
49°37°2.8 mm⌄
Day≈44–55°
Night≈32–42°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
56°41°20%⌄
Day≈50–61°
Night≈36–46°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
57°42°20%⌄
Day≈52–63°
Night≈37–47°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Light rain (climatological)
60°44°1.5 mm⌄
Day≈54–65°
Night≈38–49°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
57°42°20%⌄
Day≈52–63°
Night≈37–47°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
55°40°20%⌄
Day≈49–60°
Night≈35–46°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
48°37°2.4 mm⌄
Day≈43–54°
Night≈31–42°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
49°37°20%⌄
Day≈43–54°
Night≈31–42°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
57°42°20%⌄
Day≈51–62°
Night≈36–47°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
59°43°2.7 mm⌄
Day≈54–64°
Night≈38–48°
Precip≈0.8 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 McKernan, 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.