Charleston, South Carolina weather
United States · America/New_York · 32.78, -79.93
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Charleston, SC Weather Today
Current conditions, hourly and 7 day forecast, official severe weather alerts, and air quality for Charleston, South Carolina. Every section shows where the data came from and when it was last checked.
Your briefing
Charleston, South Carolina
- Right now
- No official warning for this location. 80° and clear sky.Observed
- Next few hours
- No rain in the forecast for the next few hours.Forecast
- Your day
- Best outdoor window: 6 AM to 8 AM.Our reading
Official warnings for this location come from NOAA / National Weather Service. Lines marked Our reading are WeatherSignal’s reading of the measurements and forecast, not an official statement.
Charleston, South Carolina
80°
Clear sky
Feels like 83° · High 80° · Low 76°
Clear sky here right now. Nothing falling.
Warm and clear tonight. 80° and feels like 83°. Overnight low around 76°. Tomorrow starts heavy rain. Sunrise is at 2:00 AM.
- Overnight low 76°
- Sunrise 2:00 AM
- Rain overnight 0%
Next few hours
Now
80°
—
5 PM
80°
—
6 PM
78°
—
7 PM
76°
—
8 PM
76°
—
- Rain chance
- 0%
- Wind
- 15 mph SSW
- Humidity
- 66%
- Air quality
- No reading
Source updated: 9:01:54 PM · WeatherSignal checked: 9:01:54 PM
What matters today
Six quick answers for Charleston. Tap Why? on any of them to see the reasoning.
Umbrella
Nah (Good)
Best time
5 AM (Good)
Dog walk
4 AM (Good)
Car wash
Wait (Not good)
Cookout
Move it inside (Not good)
Windows
Roll 'em down (Good)
Today's Signal
Good day
81/100
Mostly favorable, but the humidity, the wind and poor visibility will make it less comfortable outside.
Wind 15 mph · Dew point 68° · Visibility 0.0 mi
Today is about 12° warmer than the rest of the week.
See exactly how this number was worked out
Every location starts at 100. Points come off for heat, cold, rain, wind, UV, humidity, poor visibility, and any official alert. Nothing is ever added back.
- Starting score100
- Wind 15 mph-4
- Dew point 68°: muggy-5
- Visibility 0.0 mi-10
- Final Signal81
Next 12 hours
No big swings coming in the next 12 hours.
- 5 PMWarmest stretch · 80°
- 2 AMSunrise
- 4 AMCoolest stretch · 72°
- 5 PM—80 degrees, 0 percent chance of rain
- 6 PM—78 degrees, 0 percent chance of rain
- 7 PM—76 degrees, 0 percent chance of rain
- 8 PM—76 degrees, 0 percent chance of rain
- 9 PM—76 degrees, 0 percent chance of rain
- 10 PM—76 degrees, 0 percent chance of rain
- 11 PM—76 degrees, 0 percent chance of rain
- 12 AM—76 degrees, 0 percent chance of rain
- 1 AM—75 degrees, 0 percent chance of rain
- 2 AM—75 degrees, 0 percent chance of rain
- 3 AM—74 degrees, 0 percent chance of rain
- 4 AM—72 degrees, 0 percent chance of rain
The line is temperature by hour. The number under each hour is the chance of rain. Scroll sideways for the full 12 hours.
Next change
It keeps cooling down overnight
Temperatures fall from about 80° to 72° over the next 12 hours. There is no meaningful rain signal in the next several hours.
WeatherSignal NOW: Charleston, South Carolina
One number for everything happening around you, from 0 to 100.
96
NORMAL
Nothing here needs your attention right now.
Tap any line to see exactly what added or subtracted points. Every rule is published on our methodology page. This is an informational signal, not a safety rating: official warnings always come first.
What this means
Generated from the forecast values above using fixed rules: not an AI guess.
- No significant precipitation is expected in the next 24 hours.
Next 24 hours
Will it rain during your commute? When does the storm arrive?
See all 48 hours (2 days) — free
| Time | Condition | Temp | Feels | Precip % | Amount | Wind | Humidity |
|---|---|---|---|---|---|---|---|
| 5 PM | Clear sky | 80° | 83° | 0% | 0.00″ | 15 SSW | 66% |
| 6 PM | Clear sky | 78° | 78° | 0% | 0.00″ | 16 SSW | 74% |
| 7 PM | Clear sky | 76° | 76° | 0% | 0.00″ | 15 SSW | 79% |
| 8 PM | Clear sky | 76° | 76° | 0% | 0.00″ | 16 SSW | 81% |
| 9 PM | Clear sky | 76° | 76° | 0% | 0.00″ | 17 SSW | 81% |
| 10 PM | Mainly clear | 76° | 76° | 0% | 0.00″ | 17 SSW | 84% |
| 11 PM | Mainly clear | 76° | 76° | 0% | 0.00″ | 16 SW | 86% |
| 12 AM | Mainly clear | 76° | 76° | 0% | 0.00″ | 16 SW | 87% |
| 1 AM | Partly cloudy | 75° | 75° | 0% | 0.00″ | 16 SW | 87% |
| 2 AM | Mainly clear | 75° | 75° | 0% | 0.00″ | 16 WSW | 86% |
| 3 AM | Mainly clear | 74° | 74° | 0% | 0.00″ | 16 WSW | 80% |
| 4 AM | Mainly clear | 72° | 72° | 0% | 0.00″ | 15 W | 76% |
| 5 AM | Mainly clear | 71° | 71° | 0% | 0.00″ | 14 WNW | 76% |
| 6 AM | Mainly clear | 70° | 70° | 0% | 0.00″ | 15 NW | 79% |
| 7 AM | Light rain | 70° | 70° | 0% | 0.01″ | 16 NW | 81% |
| 8 AM | Heavy rain | 68° | 68° | 0% | 0.04″ | 18 NNW | 83% |
| 9 AM | Light rain | 65° | 65° | 0% | 0.03″ | 20 NNW | 88% |
| 10 AM | Overcast | 64° | 64° | 0% | 0.00″ | 23 N | 85% |
| 11 AM | Overcast | 64° | 64° | 0% | 0.00″ | 24 N | 75% |
| 12 PM | Overcast | 62° | 62° | 0% | 0.00″ | 25 N | 74% |
| 1 PM | Overcast | 62° | 62° | 0% | 0.00″ | 27 N | 75% |
| 2 PM | Overcast | 62° | 62° | 0% | 0.00″ | 26 N | 72% |
| 3 PM | Partly cloudy | 62° | 62° | 0% | 0.00″ | 24 N | 70% |
| 4 PM | Overcast | 64° | 64° | 0% | 0.00″ | 26 N | 65% |
7-day forecast
Confidence decreases the further out you look.
Today
Clear sky
80° / 76°
- Precip:
- 0% · 0.00″
- Wind:
- 16 mph
- UV:
- 0.8
- Sun:
- 2 AM to 2 PM
Sat, Oct 17
Heavy rain
76° / 61°
- Precip:
- 0% · 0.08″
- Wind:
- 27 mph
- UV:
- 5.9
- Sun:
- 2 AM to 2 PM
Sun, Oct 18
Clear sky
66° / 49°
- Precip:
- 0% · 0.00″
- Wind:
- 28 mph
- UV:
- 5.7
- Sun:
- 2 AM to 2 PM
Mon, Oct 19
Clear sky
65° / 51°
- Precip:
- 0% · 0.00″
- Wind:
- 24 mph
- UV:
- 0.1
- Sun:
- 2 AM to 2 PM
Tue, Oct 20
Clear sky
69° / 52°
- Precip:
- 0% · 0.00″
- Wind:
- 9 mph
- UV:
- 0.0
- Sun:
- 2 AM to 2 PM
Lower confidence: long-range outlook, not a certainty.
Wed, Oct 21
Clear sky
69° / 60°
- Precip:
- 0% · 0.00″
- Wind:
- 10 mph
- UV:
- 0.0
- Sun:
- 2 AM to 2 PM
Lower confidence: long-range outlook, not a certainty.
Thu, Oct 22
Clear sky
64° / 60°
- Precip:
- 0% · 0.00″
- Wind:
- 12 mph
- UV:
- 0.0
- Sun:
- 2 AM to 2 PM
Lower confidence: long-range outlook, not a certainty.
Forecasts describe likely conditions, not guaranteed outcomes. Official warnings from your national weather service always take precedence over anything shown here.
Charleston hourly weather
Hour by hour, out to eight days ahead.
Charleston 7 day forecast
Highs, lows and rain chance for the week.
Air quality detail
Pollutants, category, and official guidance.