Spaniard's Bay · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Spaniard's Bay & 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
18°
Fri, Sep 11
Coldest night
5°
Sun, Sep 13
Days with precip
7 / 14
of 14 forecast days
Nicest day
Tue, Sep 15
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
17° 10°
94% precip chance
Sat 12 – Sun 13 Sep
13° 5°
16% precip chance
Sat 19 – Sun 20 Sep
19° 9°
typical range
Sat 26 – Sun 27 Sep
17° 9°
typical range
30 days — Spaniard's Bay
14 forecast + 16 climatology
Sat · Today Mostly cloudy
17°10°2.5 mm⌄
Wind21 mph NE
Gusts37 mph
UV index4 – Moderate
Precip chance80%
Sunrise06:27
Sunset19:36
Sun · Tomorrow Showers
16°13°21.3 mm⌄
Wind21 mph NE
Gusts39 mph
UV index1 – Low
Precip chance94%
Sunrise06:28
Sunset19:34
Monday 7/9 Showers
16°13°11.7 mm⌄
Wind12 mph NE
Gusts25 mph
UV index5 – Moderate
Precip chance95%
Sunrise06:29
Sunset19:32
Tuesday 8/9 Showers
17°9°0.8 mm⌄
Wind11 mph NW
Gusts17 mph
UV index4 – Moderate
Precip chance64%
Sunrise06:31
Sunset19:30
Wednesday 9/9 Partly cloudy
14°8°0.2 mm⌄
Wind11 mph W
Gusts19 mph
UV index3 – Moderate
Precip chance30%
Sunrise06:32
Sunset19:28
Thursday 10/9 Mostly cloudy
16°8°3.2 mm⌄
Wind22 mph S
Gusts43 mph
UV index4 – Moderate
Precip chance73%
Sunrise06:34
Sunset19:26
Friday 11/9 Showers
18°13°3.8 mm⌄
Wind23 mph SW
Gusts43 mph
UV index4 – Moderate
Precip chance86%
Sunrise06:35
Sunset19:24
Saturday 12/9 Mostly cloudy
13°8°16%⌄
Wind10 mph N
Gusts20 mph
UV index4 – Moderate
Precip chance16%
Sunrise06:36
Sunset19:22
Sunday 13/9 Sunny
13°5°8%⌄
Wind12 mph SW
Gusts23 mph
UV index4 – Moderate
Precip chance8%
Sunrise06:38
Sunset19:20
Monday 14/9 Mostly cloudy
17°11°1.9 mm⌄
Wind23 mph SW
Gusts44 mph
UV index4 – Moderate
Precip chance74%
Sunrise06:39
Sunset19:18
Tuesday 15/9 Mostly cloudy
16°8°11%⌄
Wind10 mph W
Gusts19 mph
UV index5 – Moderate
Precip chance11%
Sunrise06:40
Sunset19:16
Wednesday 16/9 Partly cloudy
15°8°27%⌄
Wind11 mph NE
Gusts18 mph
UV index4 – Moderate
Precip chance27%
Sunrise06:42
Sunset19:14
Thursday 17/9 Mostly cloudy
15°7°15%⌄
Wind7 mph NE
Gusts16 mph
UV index3 – Moderate
Precip chance15%
Sunrise06:43
Sunset19:12
Friday 18/9 Mostly cloudy
16°9°17%⌄
Wind6 mph W
Gusts10 mph
UV index5 – Moderate
Precip chance17%
Sunrise06:44
Sunset19:09
Saturday 19/9 Rain (climatological)
15°9°9.6 mm⌄
Day≈12–18°
Night≈6–12°
Precip≈3.9 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
19°11°20%⌄
Day≈16–22°
Night≈8–14°
Precip≈3.9 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
18°11°20%⌄
Day≈15–21°
Night≈8–14°
Precip≈3.9 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
18°11°12.5 mm⌄
Day≈15–21°
Night≈8–14°
Precip≈3.9 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
16°9°20%⌄
Day≈13–19°
Night≈6–12°
Precip≈3.9 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
13°8°20%⌄
Day≈10–16°
Night≈5–11°
Precip≈3.9 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
12°7°5.9 mm⌄
Day≈9–15°
Night≈4–10°
Precip≈3.9 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
14°9°20%⌄
Day≈11–17°
Night≈6–12°
Precip≈3.9 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
17°10°20%⌄
Day≈14–20°
Night≈7–13°
Precip≈3.9 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Rain (climatological)
19°12°11.5 mm⌄
Day≈16–22°
Night≈9–15°
Precip≈3.9 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
16°10°20%⌄
Day≈13–19°
Night≈7–13°
Precip≈3.9 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
15°9°20%⌄
Day≈12–18°
Night≈6–12°
Precip≈3.9 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Rain (climatological)
5°0°8.9 mm⌄
Day≈2–8°
Night≈-3–3°
Precip≈3.9 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 2/10 Partly cloudy (climatological)
6°1°20%⌄
Day≈3–9°
Night≈-3–4°
Precip≈3.9 in / October
(climatological)Typical range for these dates · 1991–2020
Saturday 3/10 Partly cloudy (climatological)
5°0°20%⌄
Day≈2–8°
Night≈-3–3°
Precip≈3.9 in / October
(climatological)Typical range for these dates · 1991–2020
Sunday 4/10 Rain (climatological)
10°3°7.6 mm⌄
Day≈7–13°
Night≈0–6°
Precip≈3.9 in / October
(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 Spaniard's Bay, 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.