Gastown · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Gastown & 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
70°
Mon, Aug 31
Coldest night
52°
Sun, Sep 13
Days with precip
7 / 14
of 14 forecast days
Nicest day
Mon, Sep 7
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
64° 56°
11% precip chance
Sat 12 – Sun 13 Sep
59° 52°
90% precip chance
Sat 19 – Sun 20 Sep
46° 42°
typical range
Sat 26 – Sun 27 Sep
47° 43°
typical range
30 days — Gastown
14 forecast + 16 climatology
Mon · Today Mostly cloudy
70°53°18%⌄
Wind11 mph W
Gusts22 mph
UV index5 – Moderate
Precip chance18%
Sunrise06:27
Sunset19:58
Tue · Tomorrow Mostly cloudy
67°57°0.4 mm⌄
Wind15 mph SE
Gusts18 mph
UV index5 – Moderate
Precip chance36%
Sunrise06:28
Sunset19:56
Wednesday 2/9 Showers
61°56°30.8 mm⌄
Wind23 mph SE
Gusts32 mph
UV index1 – Low
Precip chance89%
Sunrise06:30
Sunset19:54
Thursday 3/9 Showers
58°55°10.2 mm⌄
Wind14 mph SE
Gusts17 mph
UV index3 – Moderate
Precip chance88%
Sunrise06:31
Sunset19:51
Friday 4/9 Showers
58°54°6.1 mm⌄
Wind9 mph NW
Gusts11 mph
UV index1 – Low
Precip chance84%
Sunrise06:33
Sunset19:49
Saturday 5/9 Mostly cloudy
61°56°11%⌄
Wind7 mph NW
Gusts15 mph
UV index5 – Moderate
Precip chance11%
Sunrise06:34
Sunset19:47
Sunday 6/9 Sunny
64°58°7%⌄
Wind8 mph W
Gusts13 mph
UV index5 – Moderate
Precip chance7%
Sunrise06:36
Sunset19:45
Monday 7/9 Sunny
67°61°8%⌄
Wind8 mph E
Gusts18 mph
UV index5 – Moderate
Precip chance8%
Sunrise06:37
Sunset19:43
Tuesday 8/9 Mostly cloudy
63°58°0.9 mm⌄
Wind21 mph W
Gusts26 mph
UV index5 – Moderate
Precip chance51%
Sunrise06:39
Sunset19:41
Wednesday 9/9 Sunny
59°56°0.3 mm⌄
Wind22 mph W
Gusts25 mph
UV index5 – Moderate
Precip chance36%
Sunrise06:40
Sunset19:39
Thursday 10/9 Showers
58°54°4.5 mm⌄
Wind13 mph SE
Gusts14 mph
UV index4 – Moderate
Precip chance77%
Sunrise06:41
Sunset19:37
Friday 11/9 Showers
59°53°5.3 mm⌄
Wind14 mph SE
Gusts16 mph
UV index4 – Moderate
Precip chance85%
Sunrise06:43
Sunset19:35
Saturday 12/9 Showers
59°55°14.8 mm⌄
Wind14 mph SE
Gusts16 mph
UV index3 – Moderate
Precip chance90%
Sunrise06:44
Sunset19:32
Sunday 13/9 Showers
58°52°8.7 mm⌄
Wind12 mph E
Gusts14 mph
UV index3 – Moderate
Precip chance84%
Sunrise06:46
Sunset19:30
Monday 14/9 Rain (climatological)
50°46°20.2 mm⌄
Day≈45–56°
Night≈40–51°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
56°49°20%⌄
Day≈50–61°
Night≈43–54°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
56°49°20%⌄
Day≈50–61°
Night≈43–54°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
51°46°23.7 mm⌄
Day≈46–57°
Night≈41–51°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
49°45°20%⌄
Day≈44–54°
Night≈39–50°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
45°42°20%⌄
Day≈40–50°
Night≈37–48°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
46°43°23.1 mm⌄
Day≈41–51°
Night≈38–48°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
51°46°20%⌄
Day≈45–56°
Night≈40–51°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
53°47°20%⌄
Day≈47–58°
Night≈42–52°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
55°49°16.0 mm⌄
Day≈50–61°
Night≈43–54°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
52°47°20%⌄
Day≈47–57°
Night≈41–52°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
49°45°20%⌄
Day≈44–54°
Night≈39–50°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
46°43°10.1 mm⌄
Day≈41–52°
Night≈38–49°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
47°43°20%⌄
Day≈41–52°
Night≈38–49°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
48°44°20%⌄
Day≈43–54°
Night≈39–50°
Precip≈7.0 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Rain (climatological)
56°49°22.0 mm⌄
Day≈51–62°
Night≈44–54°
Precip≈7.0 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 Gastown, 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.