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
101°
Sun, Sep 6
Coldest night
55°
Fri, Aug 28
Days with precip
5 / 14
of 14 forecast days
Nicest day
Fri, Aug 28
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
90° 62°
29% precip chance
Sat 5 – Sun 6 Sep
101° 72°
6% precip chance
Sat 12 – Sun 13 Sep
85° 62°
typical range
Sat 19 – Sun 20 Sep
85° 62°
typical range
30 days — Belmont
14 forecast + 16 climatology
Fri · Today Sunny
82°55°4%⌄
Wind12 mph W
Gusts23 mph
UV index7 – High
Precip chance4%
Sunrise07:02
Sunset20:24
Sat · Tomorrow Mostly cloudy
80°62°12%⌄
Wind13 mph SW
Gusts18 mph
UV index7 – High
Precip chance12%
Sunrise07:03
Sunset20:23
Sunday 30/8 Mostly cloudy
90°66°0.3 mm⌄
Wind15 mph SW
Gusts30 mph
UV index7 – High
Precip chance29%
Sunrise07:04
Sunset20:21
Monday 31/8 Showers
89°71°4.1 mm⌄
Wind18 mph W
Gusts39 mph
UV index7 – High
Precip chance76%
Sunrise07:05
Sunset20:19
Tuesday 1/9 Mostly cloudy
94°75°9%⌄
Wind14 mph SW
Gusts33 mph
UV index8 – Very high
Precip chance9%
Sunrise07:06
Sunset20:17
Wednesday 2/9 Showers
93°72°1.1 mm⌄
Wind14 mph SE
Gusts27 mph
UV index8 – Very high
Precip chance57%
Sunrise07:08
Sunset20:16
Thursday 3/9 Mostly cloudy
86°68°10%⌄
Wind9 mph NE
Gusts20 mph
UV index7 – High
Precip chance10%
Sunrise07:09
Sunset20:14
Friday 4/9 Showers
92°63°3.6 mm⌄
Wind17 mph E
Gusts32 mph
UV index8 – Very high
Precip chance66%
Sunrise07:10
Sunset20:12
Saturday 5/9 Sunny
96°77°6%⌄
Wind14 mph W
Gusts31 mph
UV index9 – Very high
Precip chance6%
Sunrise07:11
Sunset20:10
Sunday 6/9 Sunny
101°72°2%⌄
Wind7 mph W
Gusts15 mph
UV index9 – Very high
Precip chance2%
Sunrise07:12
Sunset20:09
Monday 7/9 Sunny
97°75°4%⌄
Wind13 mph SW
Gusts23 mph
UV index8 – Very high
Precip chance4%
Sunrise07:13
Sunset20:07
Tuesday 8/9 Showers
88°72°0.7 mm⌄
Wind17 mph SW
Gusts37 mph
UV index7 – High
Precip chance39%
Sunrise07:14
Sunset20:05
Wednesday 9/9 Mostly cloudy
85°57°8.5 mm⌄
Wind12 mph NE
Gusts28 mph
UV index6 – High
Precip chance81%
Sunrise07:15
Sunset20:03
Thursday 10/9 Showers
63°56°32.0 mm⌄
Wind13 mph NE
Gusts27 mph
UV index4 – Moderate
Precip chance92%
Sunrise07:16
Sunset20:02
Friday 11/9 Rain (climatological)
78°58°8.0 mm⌄
Day≈72–83°
Night≈53–64°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
83°62°20%⌄
Day≈78–89°
Night≈56–67°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
85°63°20%⌄
Day≈80–91°
Night≈58–68°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
80°60°12.4 mm⌄
Day≈74–85°
Night≈54–65°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
81°60°20%⌄
Day≈75–86°
Night≈55–65°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
74°56°20%⌄
Day≈69–80°
Night≈51–62°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
78°59°12.7 mm⌄
Day≈73–84°
Night≈53–64°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
82°61°20%⌄
Day≈76–87°
Night≈56–66°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
83°62°20%⌄
Day≈78–89°
Night≈56–67°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
85°63°6.2 mm⌄
Day≈79–90°
Night≈57–68°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
82°61°20%⌄
Day≈77–87°
Night≈56–66°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
79°59°20%⌄
Day≈73–84°
Night≈54–64°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
77°58°10.2 mm⌄
Day≈72–82°
Night≈53–63°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
77°58°20%⌄
Day≈72–82°
Night≈53–64°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
78°59°20%⌄
Day≈73–84°
Night≈53–64°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
83°62°6.2 mm⌄
Day≈78–89°
Night≈56–67°
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.