Fort Mill · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Fort Mill & 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
98°
Mon, Aug 31
Coldest night
68°
Sun, Aug 23
Days with precip
8 / 14
of 14 forecast days
Nicest day
Sun, Aug 23
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
94° 71°
57% precip chance
Sat 5 – Sun 6 Sep
89° 68°
typical range
Sat 12 – Sun 13 Sep
85° 64°
typical range
Sat 19 – Sun 20 Sep
85° 64°
typical range
30 days — Fort Mill
14 forecast + 16 climatology
Sun · Today Sunny
91°68°2%⌄
Wind8 mph NW
Gusts18 mph
UV index8 – Very high
Precip chance2%
Sunrise06:49
Sunset20:02
Mon · Tomorrow Mostly cloudy
90°69°5%⌄
Wind8 mph W
Gusts21 mph
UV index8 – Very high
Precip chance5%
Sunrise06:50
Sunset20:01
Tuesday 25/8 Mostly cloudy
82°70°4.0 mm⌄
Wind7 mph N
Gusts20 mph
UV index9 – Very high
Precip chance65%
Sunrise06:51
Sunset20:00
Wednesday 26/8 Sunny
94°70°2.2 mm⌄
Wind7 mph S
Gusts17 mph
UV index9 – Very high
Precip chance57%
Sunrise06:52
Sunset19:59
Thursday 27/8 Mostly cloudy
91°70°0.7 mm⌄
Wind11 mph SW
Gusts22 mph
UV index7 – High
Precip chance50%
Sunrise06:52
Sunset19:57
Friday 28/8 Mostly cloudy
94°73°0.9 mm⌄
Wind14 mph SW
Gusts23 mph
UV index8 – Very high
Precip chance49%
Sunrise06:53
Sunset19:56
Saturday 29/8 Sunny
93°71°0.6 mm⌄
Wind5 mph S
Gusts14 mph
UV index8 – Very high
Precip chance38%
Sunrise06:54
Sunset19:55
Sunday 30/8 Showers
94°74°2.6 mm⌄
Wind8 mph S
Gusts11 mph
UV index8 – Very high
Precip chance57%
Sunrise06:55
Sunset19:53
Monday 31/8 Sunny
98°73°0.8 mm⌄
Wind6 mph W
Gusts11 mph
UV index9 – Very high
Precip chance36%
Sunrise06:55
Sunset19:52
Tuesday 1/9 Showers
89°68°7.3 mm⌄
Wind11 mph W
Gusts27 mph
UV index8 – Very high
Precip chance82%
Sunrise06:56
Sunset19:51
Wednesday 2/9 Showers
80°74°2.4 mm⌄
Wind4 mph NW
Gusts15 mph
UV index6 – High
Precip chance78%
Sunrise06:57
Sunset19:49
Thursday 3/9 Sunny
93°72°7.9 mm⌄
Wind5 mph SE
Gusts7 mph
UV index8 – Very high
Precip chance64%
Sunrise06:58
Sunset19:48
Friday 4/9 Mostly cloudy
91°74°3.3 mm⌄
Wind5 mph SW
Gusts17 mph
UV index7 – High
Precip chance70%
Sunrise06:58
Sunset19:46
Saturday 5/9 Mostly cloudy
89°72°3.8 mm⌄
Wind7 mph SE
Gusts11 mph
UV index8 – Very high
Precip chance65%
Sunrise06:59
Sunset19:45
Sunday 6/9 Rain (climatological)
86°68°7.9 mm⌄
Day≈81–92°
Night≈62–73°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
91°70°20%⌄
Day≈86–96°
Night≈65–76°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
89°69°20%⌄
Day≈83–94°
Night≈64–74°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Rain (climatological)
90°70°8.4 mm⌄
Day≈85–95°
Night≈64–75°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
85°67°20%⌄
Day≈79–90°
Night≈61–72°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
82°65°20%⌄
Day≈76–87°
Night≈59–70°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
81°64°7.1 mm⌄
Day≈76–86°
Night≈59–70°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
85°67°20%⌄
Day≈80–91°
Night≈61–72°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
88°68°20%⌄
Day≈82–93°
Night≈63–74°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
88°69°6.6 mm⌄
Day≈82–93°
Night≈63–74°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
87°68°20%⌄
Day≈82–92°
Night≈62–73°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
85°67°20%⌄
Day≈79–90°
Night≈61–72°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
83°66°9.7 mm⌄
Day≈78–89°
Night≈60–71°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
80°64°20%⌄
Day≈75–86°
Night≈58–69°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
85°67°20%⌄
Day≈79–90°
Night≈61–72°
Precip≈3.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
87°68°7.6 mm⌄
Day≈81–92°
Night≈62–73°
Precip≈3.1 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 Fort Mill, 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.