Yarrow · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Yarrow & 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°
Fri, Aug 21
Coldest night
45°
Fri, Aug 28
Days with precip
6 / 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
74° 54°
87% precip chance
Sat 29 – Sun 30 Aug
68° 45°
85% precip chance
Sat 5 – Sun 6 Sep
60° 40°
typical range
Sat 12 – Sun 13 Sep
61° 41°
typical range
30 days — Yarrow
14 forecast + 16 climatology
Wed · Today Mostly cloudy
81°58°9%⌄
Wind6 mph SW
Gusts17 mph
UV index6 – High
Precip chance9%
Sunrise06:06
Sunset20:17
Thu · Tomorrow Sunny
84°55°5%⌄
Wind6 mph SW
Gusts17 mph
UV index7 – High
Precip chance5%
Sunrise06:07
Sunset20:15
Friday 21/8 Sunny
84°58°2.5 mm⌄
Wind7 mph SW
Gusts17 mph
UV index6 – High
Precip chance57%
Sunrise06:08
Sunset20:13
Saturday 22/8 Showers
61°55°4.8 mm⌄
Wind4 mph SW
Gusts12 mph
UV index3 – Low
Precip chance87%
Sunrise06:10
Sunset20:11
Sunday 23/8 Sunny
74°54°1.3 mm⌄
Wind6 mph SW
Gusts14 mph
UV index6 – High
Precip chance59%
Sunrise06:11
Sunset20:09
Monday 24/8 Sunny
77°51°7%⌄
Wind7 mph SW
Gusts14 mph
UV index6 – High
Precip chance7%
Sunrise06:13
Sunset20:07
Tuesday 25/8 Sunny
76°53°6%⌄
Wind6 mph SW
Gusts17 mph
UV index6 – High
Precip chance6%
Sunrise06:14
Sunset20:06
Wednesday 26/8 Sunny
73°53°7%⌄
Wind7 mph SW
Gusts15 mph
UV index6 – High
Precip chance7%
Sunrise06:16
Sunset20:04
Thursday 27/8 Sunny
63°48°0.5 mm⌄
Wind7 mph W
Gusts15 mph
UV index5 – Moderate
Precip chance36%
Sunrise06:17
Sunset20:01
Friday 28/8 Mostly cloudy
67°45°13%⌄
Wind6 mph SW
Gusts17 mph
UV index4 – Moderate
Precip chance13%
Sunrise06:19
Sunset19:59
Saturday 29/8 Sunny
68°45°1.6 mm⌄
Wind8 mph SW
Gusts19 mph
UV index5 – Moderate
Precip chance57%
Sunrise06:20
Sunset19:57
Sunday 30/8 Fog
53°50°2.1 mm⌄
Wind4 mph SW
Gusts11 mph
UV index3 – Moderate
Precip chance85%
Sunrise06:21
Sunset19:55
Monday 31/8 Fog
55°50°2.8 mm⌄
Wind4 mph NE
Gusts15 mph
UV index3 – Moderate
Precip chance87%
Sunrise06:23
Sunset19:53
Tuesday 1/9 Sunny
76°47°10%⌄
Wind7 mph SW
Gusts18 mph
UV index6 – High
Precip chance10%
Sunrise06:24
Sunset19:51
Wednesday 2/9 Rain (climatological)
59°41°4.1 mm⌄
Day≈54–64°
Night≈36–47°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 3/9 Partly cloudy (climatological)
65°45°20%⌄
Day≈60–71°
Night≈40–50°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Partly cloudy (climatological)
67°46°20%⌄
Day≈61–72°
Night≈40–51°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Rain (climatological)
60°42°4.4 mm⌄
Day≈55–66°
Night≈37–47°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
57°40°20%⌄
Day≈51–62°
Night≈34–45°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
54°38°20%⌄
Day≈49–60°
Night≈33–44°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Rain (climatological)
58°40°3.5 mm⌄
Day≈52–63°
Night≈35–46°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
60°42°20%⌄
Day≈54–65°
Night≈36–47°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
66°45°20%⌄
Day≈61–71°
Night≈40–51°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
64°44°3.2 mm⌄
Day≈59–70°
Night≈39–50°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
61°42°20%⌄
Day≈56–66°
Night≈37–48°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
59°41°20%⌄
Day≈54–65°
Night≈36–47°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
56°39°3.1 mm⌄
Day≈50–61°
Night≈34–45°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
56°39°20%⌄
Day≈50–61°
Night≈34–45°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
58°41°20%⌄
Day≈53–64°
Night≈35–46°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
64°44°3.7 mm⌄
Day≈58–69°
Night≈39–49°
Precip≈1.3 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 Yarrow, 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.