Charleston, SC 14-Day Forecast
South Carolina, United States 🇺🇸
92°
Sunny right now
Today: high 92°, low 80°
Updated 1 min ago
Charleston weather for the next 14 days
Saturday, July 18
Sunny High 90° Low 80°Precipitation
36%
· 0.02 in
Max wind
14 mph
Humidity
73%
UV index
11 - Very High
Sunrise / sunset
06:24 AM / 08:27 PM
Sunday, July 19
Sunny High 90° Low 79°Precipitation
36%
· 0.03 in
Max wind
17 mph
Humidity
70%
UV index
10 - Very High
Sunrise / sunset
06:25 AM / 08:27 PM
Monday, July 20
Sunny High 90° Low 77°Precipitation
36%
· 0.02 in
Max wind
15 mph
Humidity
68%
UV index
5 - Moderate
Sunrise / sunset
06:25 AM / 08:26 PM
Tuesday, July 21
Patchy rain nearby High 89° Low 80°Precipitation
62%
· 0.13 in
Max wind
16 mph
Humidity
69%
UV index
8 - Very High
Sunrise / sunset
06:26 AM / 08:25 PM
Wednesday, July 22
Sunny High 90° Low 82°Precipitation
64%
· 0.29 in
Max wind
18 mph
Humidity
71%
UV index
8 - Very High
Sunrise / sunset
06:27 AM / 08:25 PM
Thursday, July 23
Light rain shower High 84° Low 77°Precipitation
85%
· 0.4 in
Max wind
11 mph
Humidity
85%
UV index
7 - High
Sunrise / sunset
06:27 AM / 08:24 PM
Friday, July 24
Light rain shower High 83° Low 76°Precipitation
84%
· 0.75 in
Max wind
9 mph
Humidity
83%
UV index
7 - High
Sunrise / sunset
06:28 AM / 08:24 PM
Saturday, July 25
Patchy rain nearby High 89° Low 76°Precipitation
81%
· 0.49 in
Max wind
9 mph
Humidity
79%
UV index
8 - Very High
Sunrise / sunset
06:28 AM / 08:23 PM
Sunday, July 26
Patchy rain nearby High 78° Low 73°Precipitation
88%
· 0.38 in
Max wind
7 mph
Humidity
90%
UV index
5 - Moderate
Sunrise / sunset
06:29 AM / 08:22 PM
Monday, July 27
Partly Cloudy High 86° Low 71°Precipitation
20%
· 0.0 in
Max wind
7 mph
Humidity
76%
UV index
8 - Very High
Sunrise / sunset
06:30 AM / 08:22 PM
Tuesday, July 28
Patchy rain nearby High 84° Low 74°Precipitation
75%
· 0.36 in
Max wind
10 mph
Humidity
76%
UV index
7 - High
Sunrise / sunset
06:30 AM / 08:21 PM
Wednesday, July 29
Sunny High 88° Low 76°Precipitation
57%
· 0.12 in
Max wind
11 mph
Humidity
68%
UV index
8 - Very High
Sunrise / sunset
06:31 AM / 08:20 PM
Thursday, July 30
Sunny High 89° Low 78°Precipitation
4%
· 0.0 in
Max wind
9 mph
Humidity
64%
UV index
8 - Very High
Sunrise / sunset
06:32 AM / 08:20 PM
Charleston 14-day outlook: the story
The warmest day of Charleston's 14-day outlook is Friday, July 17 with a high near 92°F (34°C); the coolest night comes Monday, July 27, dipping to 71°F (22°C). The trend points cooler: week two runs about 4°F below week one. Highs over the next two weeks average 89°F (32°C), right in line with the typical July high of 88°F (31°C).
Precipitation is most likely on Tuesday 21, Wednesday 22, Thursday 23, Friday 24 and beyond; the wettest day looks like Friday, July 24 with about 0.75 in (18.9 mm) expected. For the weekend, expect Saturday 90°F (32°C) and sunny / Sunday 90°F (32°C) and sunny.
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 8 of the next 14 days, peaking around Friday, July 24.
What will be the warmest day in Charleston over the next 14 days?
Friday, July 17, with a forecast high near 92°F (34°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