Hamilton · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Hamilton & 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
40°
Mon, Aug 24
Coldest night
22°
Fri, Aug 28
Days with precip
2 / 14
of 14 forecast days
Nicest day
Sat, Sep 5
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
38° 23°
9% precip chance
Sat 5 – Sun 6 Sep
35° 22°
5% precip chance
Sat 12 – Sun 13 Sep
31° 20°
typical range
Sat 19 – Sun 20 Sep
32° 21°
typical range
30 days — Hamilton
14 forecast + 16 climatology
Mon · Today Sunny
40°26°1%⌄
Wind16 mph S
Gusts33 mph
UV index10 – Very high
Precip chance1%
Sunrise07:03
Sunset20:06
Tue · Tomorrow Sunny
39°25°0.2 mm⌄
Wind18 mph S
Gusts36 mph
UV index10 – Very high
Precip chance17%
Sunrise07:03
Sunset20:05
Wednesday 26/8 Sunny
39°27°1.6 mm⌄
Wind23 mph N
Gusts35 mph
UV index10 – Very high
Precip chance57%
Sunrise07:04
Sunset20:04
Thursday 27/8 Mostly cloudy
37°24°3.0 mm⌄
Wind14 mph W
Gusts28 mph
UV index10 – Very high
Precip chance57%
Sunrise07:05
Sunset20:02
Friday 28/8 Sunny
37°22°0.2 mm⌄
Wind11 mph W
Gusts18 mph
UV index9 – Very high
Precip chance17%
Sunrise07:05
Sunset20:01
Saturday 29/8 Sunny
38°28°2%⌄
Wind15 mph SE
Gusts29 mph
UV index9 – Very high
Precip chance2%
Sunrise07:06
Sunset20:00
Sunday 30/8 Mostly cloudy
35°23°9%⌄
Wind17 mph SE
Gusts28 mph
UV index8 – Very high
Precip chance9%
Sunrise07:06
Sunset19:59
Monday 31/8 Sunny
37°23°3%⌄
Wind16 mph SE
Gusts29 mph
UV index9 – Very high
Precip chance3%
Sunrise07:07
Sunset19:58
Tuesday 1/9 Sunny
36°23°2%⌄
Wind18 mph S
Gusts31 mph
UV index9 – Very high
Precip chance2%
Sunrise07:08
Sunset19:56
Wednesday 2/9 Sunny
37°23°2%⌄
Wind19 mph S
Gusts32 mph
UV index9 – Very high
Precip chance2%
Sunrise07:08
Sunset19:55
Thursday 3/9 Sunny
38°24°3%⌄
Wind23 mph S
Gusts33 mph
UV index9 – Very high
Precip chance3%
Sunrise07:09
Sunset19:54
Friday 4/9 Sunny
38°23°3%⌄
Wind21 mph S
Gusts33 mph
UV index9 – Very high
Precip chance3%
Sunrise07:10
Sunset19:53
Saturday 5/9 Sunny
35°22°3%⌄
Wind17 mph S
Gusts29 mph
UV index8 – Very high
Precip chance3%
Sunrise07:10
Sunset19:51
Sunday 6/9 Mostly cloudy
35°23°5%⌄
Wind20 mph S
Gusts33 mph
UV index8 – Very high
Precip chance5%
Sunrise07:11
Sunset19:50
Monday 7/9 Light rain (climatological)
34°22°1.7 mm⌄
Day≈31–37°
Night≈19–25°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
36°23°20%⌄
Day≈33–39°
Night≈20–26°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
39°25°20%⌄
Day≈36–42°
Night≈22–28°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Light rain (climatological)
36°23°2.0 mm⌄
Day≈33–39°
Night≈20–26°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
33°21°20%⌄
Day≈30–36°
Night≈18–24°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
31°20°20%⌄
Day≈28–34°
Night≈17–23°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Light rain (climatological)
31°20°1.2 mm⌄
Day≈28–34°
Night≈17–23°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
35°23°20%⌄
Day≈32–38°
Night≈20–26°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
36°23°20%⌄
Day≈33–39°
Night≈20–26°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Light rain (climatological)
38°24°1.9 mm⌄
Day≈35–41°
Night≈21–27°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
35°23°20%⌄
Day≈32–38°
Night≈20–26°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
34°21°20%⌄
Day≈31–37°
Night≈18–24°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Light rain (climatological)
32°21°1.5 mm⌄
Day≈29–35°
Night≈18–24°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
32°21°20%⌄
Day≈29–35°
Night≈18–24°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
33°21°20%⌄
Day≈30–36°
Night≈18–24°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Light rain (climatological)
36°23°1.3 mm⌄
Day≈33–39°
Night≈20–26°
Precip≈0.6 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 Hamilton, 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.