Summerville · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Summerville & 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°
Fri, Sep 4
Coldest night
65°
Sat, Sep 12
Days with precip
1 / 14
of 14 forecast days
Nicest day
Sat, Sep 12
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
97° 72°
18% precip chance
Sat 12 – Sun 13 Sep
89° 65°
5% precip chance
Sat 19 – Sun 20 Sep
95° 71°
typical range
Sat 26 – Sun 27 Sep
99° 72°
typical range
30 days — Summerville
14 forecast + 16 climatology
Fri · Today Sunny
101°74°4%⌄
Wind11 mph E
Gusts21 mph
UV index9 – Very high
Precip chance4%
Sunrise07:16
Sunset20:04
Sat · Tomorrow Sunny
97°74°17%⌄
Wind8 mph N
Gusts22 mph
UV index9 – Very high
Precip chance17%
Sunrise07:17
Sunset20:02
Sunday 6/9 Mostly cloudy
94°72°0.2 mm⌄
Wind10 mph N
Gusts28 mph
UV index8 – Very high
Precip chance18%
Sunrise07:18
Sunset20:01
Monday 7/9 Sunny
83°70°17%⌄
Wind12 mph SE
Gusts26 mph
UV index6 – High
Precip chance17%
Sunrise07:18
Sunset19:59
Tuesday 8/9 Sunny
88°69°5%⌄
Wind10 mph SE
Gusts22 mph
UV index8 – Very high
Precip chance5%
Sunrise07:19
Sunset19:58
Wednesday 9/9 Sunny
91°69°4%⌄
Wind4 mph SE
Gusts7 mph
UV index8 – Very high
Precip chance4%
Sunrise07:20
Sunset19:57
Thursday 10/9 Sunny
94°70°0.8 mm⌄
Wind9 mph NW
Gusts24 mph
UV index8 – Very high
Precip chance36%
Sunrise07:21
Sunset19:55
Friday 11/9 Mostly cloudy
89°68°0.4 mm⌄
Wind9 mph N
Gusts24 mph
UV index8 – Very high
Precip chance36%
Sunrise07:21
Sunset19:54
Saturday 12/9 Sunny
88°65°2%⌄
Wind8 mph SE
Gusts23 mph
UV index8 – Very high
Precip chance2%
Sunrise07:22
Sunset19:52
Sunday 13/9 Sunny
89°66°5%⌄
Wind5 mph SE
Gusts13 mph
UV index8 – Very high
Precip chance5%
Sunrise07:23
Sunset19:51
Monday 14/9 Sunny
94°70°3%⌄
Wind5 mph NE
Gusts11 mph
UV index8 – Very high
Precip chance3%
Sunrise07:23
Sunset19:50
Tuesday 15/9 Sunny
98°75°1.5 mm⌄
Wind8 mph NE
Gusts15 mph
UV index9 – Very high
Precip chance57%
Sunrise07:24
Sunset19:48
Wednesday 16/9 Sunny
99°73°0.3 mm⌄
Wind11 mph N
Gusts27 mph
UV index9 – Very high
Precip chance36%
Sunrise07:25
Sunset19:47
Thursday 17/9 Sunny
96°70°4%⌄
Wind6 mph NE
Gusts11 mph
UV index9 – Very high
Precip chance4%
Sunrise07:25
Sunset19:45
Friday 18/9 Light rain (climatological)
92°70°1.1 mm⌄
Day≈87–97°
Night≈64–75°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
94°71°20%⌄
Day≈89–99°
Night≈65–76°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
95°72°20%⌄
Day≈89–100°
Night≈66–77°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Light rain (climatological)
93°71°0.8 mm⌄
Day≈88–99°
Night≈65–76°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
93°71°20%⌄
Day≈88–98°
Night≈65–76°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
86°66°20%⌄
Day≈81–91°
Night≈61–72°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Light rain (climatological)
87°67°1.5 mm⌄
Day≈81–92°
Night≈61–72°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
93°70°20%⌄
Day≈87–98°
Night≈65–76°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
99°74°20%⌄
Day≈94–104°
Night≈69–79°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Light rain (climatological)
96°72°1.6 mm⌄
Day≈90–101°
Night≈67–78°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
95°72°20%⌄
Day≈90–100°
Night≈66–77°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
89°68°20%⌄
Day≈83–94°
Night≈63–73°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Light rain (climatological)
86°66°1.5 mm⌄
Day≈81–92°
Night≈61–72°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Partly cloudy (climatological)
79°60°20%⌄
Day≈74–84°
Night≈54–65°
Precip≈0.6 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 2/10 Partly cloudy (climatological)
82°61°20%⌄
Day≈77–87°
Night≈56–67°
Precip≈0.6 in / October
(climatological)Typical range for these dates · 1991–2020
Saturday 3/10 Light rain (climatological)
88°65°1.4 mm⌄
Day≈83–94°
Night≈60–70°
Precip≈0.6 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 Summerville, 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.