Belmont · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Belmont & 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
37°
Fri, Sep 4
Coldest night
11°
Fri, Aug 28
Days with precip
4 / 14
of 14 forecast days
Nicest day
Tue, Sep 8
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
32° 17°
36% precip chance
Sat 5 – Sun 6 Sep
34° 19°
79% precip chance
Sat 12 – Sun 13 Sep
28° 16°
typical range
Sat 19 – Sun 20 Sep
28° 16°
typical range
30 days — Belmont
14 forecast + 16 climatology
Fri · Today Sunny
30°11°2%⌄
Wind13 mph W
Gusts24 mph
UV index7 – High
Precip chance2%
Sunrise07:02
Sunset20:24
Sat · Tomorrow Mostly cloudy
27°17°16%⌄
Wind11 mph NW
Gusts24 mph
UV index6 – High
Precip chance16%
Sunrise07:03
Sunset20:23
Sunday 30/8 Mostly cloudy
32°19°0.3 mm⌄
Wind15 mph SW
Gusts30 mph
UV index7 – High
Precip chance36%
Sunrise07:04
Sunset20:21
Monday 31/8 Mostly cloudy
32°20°2.2 mm⌄
Wind18 mph W
Gusts32 mph
UV index7 – High
Precip chance71%
Sunrise07:05
Sunset20:19
Tuesday 1/9 Mostly cloudy
35°24°0.1 mm⌄
Wind13 mph SW
Gusts33 mph
UV index8 – Very high
Precip chance17%
Sunrise07:06
Sunset20:17
Wednesday 2/9 Sunny
34°24°0.3 mm⌄
Wind18 mph SW
Gusts36 mph
UV index8 – Very high
Precip chance17%
Sunrise07:08
Sunset20:16
Thursday 3/9 Sunny
34°21°4%⌄
Wind6 mph NE
Gusts12 mph
UV index8 – Very high
Precip chance4%
Sunrise07:09
Sunset20:14
Friday 4/9 Partly cloudy
37°24°5%⌄
Wind12 mph NW
Gusts15 mph
UV index9 – Very high
Precip chance5%
Sunrise07:10
Sunset20:12
Saturday 5/9 Sunny
34°23°4%⌄
Wind8 mph E
Gusts23 mph
UV index8 – Very high
Precip chance4%
Sunrise07:11
Sunset20:10
Sunday 6/9 Mostly cloudy
28°19°5.6 mm⌄
Wind12 mph N
Gusts24 mph
UV index6 – High
Precip chance79%
Sunrise07:12
Sunset20:09
Monday 7/9 Fog
28°17°0.6 mm⌄
Wind10 mph N
Gusts20 mph
UV index7 – High
Precip chance39%
Sunrise07:13
Sunset20:07
Tuesday 8/9 Sunny
25°15°5%⌄
Wind13 mph W
Gusts18 mph
UV index7 – High
Precip chance5%
Sunrise07:14
Sunset20:05
Wednesday 9/9 Mostly cloudy
29°14°8.5 mm⌄
Wind12 mph NE
Gusts28 mph
UV index6 – High
Precip chance78%
Sunrise07:15
Sunset20:03
Thursday 10/9 Showers
17°13°32.0 mm⌄
Wind13 mph NE
Gusts27 mph
UV index4 – Moderate
Precip chance92%
Sunrise07:16
Sunset20:02
Friday 11/9 Rain (climatological)
24°14°7.9 mm⌄
Day≈21–27°
Night≈11–17°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
27°16°20%⌄
Day≈24–30°
Night≈13–19°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
28°16°20%⌄
Day≈25–31°
Night≈13–19°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
25°14°12.2 mm⌄
Day≈22–28°
Night≈11–17°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
26°15°20%⌄
Day≈23–29°
Night≈12–18°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
22°13°20%⌄
Day≈19–25°
Night≈10–16°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
25°14°12.6 mm⌄
Day≈22–28°
Night≈11–17°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
27°15°20%⌄
Day≈24–30°
Night≈12–18°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
28°16°20%⌄
Day≈25–31°
Night≈13–19°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
28°16°6.1 mm⌄
Day≈25–31°
Night≈13–19°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
27°15°20%⌄
Day≈24–30°
Night≈12–18°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
25°14°20%⌄
Day≈22–28°
Night≈11–17°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
24°14°10.1 mm⌄
Day≈21–27°
Night≈11–17°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
24°14°20%⌄
Day≈21–27°
Night≈11–17°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
25°14°20%⌄
Day≈22–28°
Night≈11–17°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
27°16°6.1 mm⌄
Day≈24–30°
Night≈13–19°
Precip≈4.3 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 Belmont, 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.