Flatrock · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Flatrock & 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
77°
Mon, Aug 31
Coldest night
50°
Sun, Aug 23
Days with precip
4 / 14
of 14 forecast days
Nicest day
Wed, Aug 26
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
63° 50°
90% precip chance
Sat 29 – Sun 30 Aug
76° 58°
58% precip chance
Sat 5 – Sun 6 Sep
55° 44°
typical range
Sat 12 – Sun 13 Sep
54° 43°
typical range
30 days — Flatrock
14 forecast + 16 climatology
Tue · Today Sunny
65°52°12%⌄
Wind13 mph S
Gusts21 mph
UV index7 – High
Precip chance12%
Sunrise06:00
Sunset20:08
Wed · Tomorrow Mostly cloudy
61°53°27%⌄
Wind9 mph S
Gusts22 mph
UV index4 – Moderate
Precip chance27%
Sunrise06:02
Sunset20:07
Thursday 20/8 Mostly cloudy
66°55°3.2 mm⌄
Wind15 mph S
Gusts34 mph
UV index4 – Moderate
Precip chance86%
Sunrise06:03
Sunset20:05
Friday 21/8 Mostly cloudy
71°58°0.4 mm⌄
Wind9 mph E
Gusts22 mph
UV index6 – High
Precip chance49%
Sunrise06:04
Sunset20:03
Saturday 22/8 Showers
62°56°6.1 mm⌄
Wind4 mph NW
Gusts13 mph
UV index5 – Moderate
Precip chance90%
Sunrise06:06
Sunset20:01
Sunday 23/8 Mostly cloudy
63°50°20%⌄
Wind9 mph N
Gusts18 mph
UV index4 – Moderate
Precip chance20%
Sunrise06:07
Sunset19:59
Monday 24/8 Showers
67°51°2.1 mm⌄
Wind16 mph S
Gusts38 mph
UV index4 – Moderate
Precip chance82%
Sunrise06:08
Sunset19:57
Tuesday 25/8 Mostly cloudy
73°57°25%⌄
Wind17 mph W
Gusts35 mph
UV index5 – Moderate
Precip chance25%
Sunrise06:10
Sunset19:55
Wednesday 26/8 Mostly cloudy
68°55°16%⌄
Wind10 mph W
Gusts24 mph
UV index5 – Moderate
Precip chance16%
Sunrise06:11
Sunset19:53
Thursday 27/8 Mostly cloudy
61°52°24%⌄
Wind9 mph SE
Gusts18 mph
UV index4 – Moderate
Precip chance24%
Sunrise06:12
Sunset19:52
Friday 28/8 Showers
58°53°0.4 mm⌄
Wind10 mph SE
Gusts22 mph
UV index3 – Moderate
Precip chance62%
Sunrise06:14
Sunset19:50
Saturday 29/8 Fog
71°58°0.4 mm⌄
Wind22 mph SW
Gusts46 mph
UV index5 – Moderate
Precip chance58%
Sunrise06:15
Sunset19:48
Sunday 30/8 Sunny
76°60°11%⌄
Wind15 mph W
Gusts35 mph
UV index6 – High
Precip chance11%
Sunrise06:16
Sunset19:46
Monday 31/8 Sunny
77°59°12%⌄
Wind13 mph W
Gusts30 mph
UV index7 – High
Precip chance12%
Sunrise06:18
Sunset19:44
Tuesday 1/9 Rain (climatological)
58°46°2.1 mm⌄
Day≈53–63°
Night≈41–52°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 2/9 Partly cloudy (climatological)
59°47°20%⌄
Day≈53–64°
Night≈41–52°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 3/9 Partly cloudy (climatological)
64°50°20%⌄
Day≈58–69°
Night≈44–55°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Rain (climatological)
62°49°2.2 mm⌄
Day≈56–67°
Night≈43–54°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Partly cloudy (climatological)
55°44°20%⌄
Day≈49–60°
Night≈39–50°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
53°44°20%⌄
Day≈48–59°
Night≈38–49°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Light rain (climatological)
54°44°1.4 mm⌄
Day≈49–60°
Night≈39–50°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
56°45°20%⌄
Day≈51–62°
Night≈40–51°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
62°49°20%⌄
Day≈56–67°
Night≈43–54°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Rain (climatological)
64°50°3.2 mm⌄
Day≈59–70°
Night≈45–56°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
62°49°20%⌄
Day≈56–67°
Night≈43–54°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
53°43°20%⌄
Day≈47–58°
Night≈38–48°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Light rain (climatological)
54°44°1.9 mm⌄
Day≈48–59°
Night≈38–49°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
53°43°20%⌄
Day≈47–58°
Night≈38–49°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
56°46°20%⌄
Day≈51–62°
Night≈40–51°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
60°47°2.3 mm⌄
Day≈55–65°
Night≈42–53°
Precip≈1.1 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 Flatrock, 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.