Charleston, SC 14-Day Forecast
South Carolina, United States 🇺🇸
82°
Heavy rain at times right now
Today: high 83°, low 76°
Updated 46 min ago
Charleston weather for the next 14 days
Thursday, August 27
Patchy rain nearby High 90° Low 74°Precipitation
77%
· 0.99 in
Max wind
11 mph
Humidity
76%
UV index
8 - High
Sunrise / sunset
06:51 AM / 07:51 PM
Friday, August 28
Patchy rain nearby High 92° Low 75°Precipitation
67%
· 0.14 in
Max wind
12 mph
Humidity
73%
UV index
8 - Very High
Sunrise / sunset
06:51 AM / 07:50 PM
Saturday, August 29
Patchy rain nearby High 89° Low 76°Precipitation
46%
· 0.03 in
Max wind
9 mph
Humidity
73%
UV index
8 - Very High
Sunrise / sunset
06:52 AM / 07:48 PM
Sunday, August 30
Patchy rain nearby High 90° Low 77°Precipitation
64%
· 0.07 in
Max wind
9 mph
Humidity
78%
UV index
8 - Very High
Sunrise / sunset
06:53 AM / 07:47 PM
Monday, August 31
Sunny High 93° Low 77°Precipitation
57%
· 0.07 in
Max wind
9 mph
Humidity
75%
UV index
8 - Very High
Sunrise / sunset
06:53 AM / 07:46 PM
Tuesday, September 1
Sunny High 96° Low 78°Precipitation
8%
· 0.0 in
Max wind
10 mph
Humidity
72%
UV index
9 - Very High
Sunrise / sunset
06:54 AM / 07:44 PM
Wednesday, September 2
Sunny High 97° Low 79°Precipitation
5%
· 0.0 in
Max wind
11 mph
Humidity
70%
UV index
9 - Very High
Sunrise / sunset
06:55 AM / 07:43 PM
Thursday, September 3
Sunny High 95° Low 79°Precipitation
7%
· 0.0 in
Max wind
11 mph
Humidity
71%
UV index
9 - Very High
Sunrise / sunset
06:55 AM / 07:42 PM
Friday, September 4
Sunny High 93° Low 79°Precipitation
5%
· 0.0 in
Max wind
11 mph
Humidity
70%
UV index
8 - Very High
Sunrise / sunset
06:56 AM / 07:41 PM
Saturday, September 5
Sunny High 99° Low 76°Precipitation
67%
· 1.07 in
Max wind
17 mph
Humidity
71%
UV index
9 - Very High
Sunrise / sunset
06:57 AM / 07:39 PM
Sunday, September 6
Patchy rain nearby High 92° Low 76°Precipitation
66%
· 0.12 in
Max wind
9 mph
Humidity
73%
UV index
8 - Very High
Sunrise / sunset
06:57 AM / 07:38 PM
Monday, September 7
Sunny High 89° Low 74°Precipitation
12%
· 0.0 in
Max wind
10 mph
Humidity
72%
UV index
8 - Very High
Sunrise / sunset
06:58 AM / 07:37 PM
Tuesday, September 8
Sunny High 99° Low 77°Precipitation
45%
· 0.03 in
Max wind
9 mph
Humidity
70%
UV index
9 - Very High
Sunrise / sunset
06:59 AM / 07:35 PM
Charleston 14-day outlook: the story
The warmest day of Charleston's 14-day outlook is Saturday, September 5 with a high near 99°F (37°C); the coolest night comes Thursday, August 27, dipping to 74°F (24°C). The trend points warmer: week two runs about 4°F above week one. Highs over the next two weeks average 90°F (32°C), about 4°F (2°C) above the typical August high of 86°F (30°C).
Precipitation is most likely on Wednesday 26, Thursday 27, Friday 28, Sunday 30 and beyond; the wettest day looks like Wednesday, August 26 with about 8.0 in (203.1 mm) expected. For the weekend, expect Saturday 89°F (32°C) and patchy rain nearby / Sunday 90°F (32°C) and patchy rain nearby.
For typical conditions month by month, see the Charleston climate & average temperatures guide.
Charleston forecast questions
Will it rain in Charleston this week?
The forecast currently shows meaningful precipitation chances on 7 of the next 14 days, peaking around Wednesday, August 26.
What will be the warmest day in Charleston over the next 14 days?
Saturday, September 5, with a forecast high near 99°F (37°C).
How accurate is a 14-day forecast for Charleston?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Charleston by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 58° | 44° | 10 | 3.2 in | 7.6 h/day | 73% |
| February | 62° | 48° | 9 | 3.3 in | 8.0 h/day | 76% |
| March | 67° | 53° | 9 | 3.0 in | 8.9 h/day | 72% |
| April | 73° | 59° | 8 | 4.3 in | 10.8 h/day | 70% |
| May | 80° | 67° | 11 | 3.5 in | 11.5 h/day | 73% |
| June | 85° | 74° | 16 | 4.8 in | 11.6 h/day | 77% |
| July | 88° | 77° | 17 | 4.9 in | 11.5 h/day | 78% |
| August | 86° | 76° | 19 | 7.0 in | 10.7 h/day | 81% |
| September | 83° | 72° | 14 | 5.9 in | 9.9 h/day | 79% |
| October | 76° | 63° | 7 | 3.7 in | 9.3 h/day | 75% |
| November | 67° | 53° | 8 | 3.2 in | 8.2 h/day | 75% |
| December | 62° | 49° | 9 | 4.8 in | 7.0 h/day | 77% |
14-day forecasts nearby