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CheckWeather USCharleston
Forecast confidence: High · models disagree by 3°F

Charleston weather

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Heavy drizzle,warmer tomorrow

NWS, the American and the European model agree on a high near 82° in Charleston today. Tomorrow looks cloudy around 87°, with a 18% chance of rain.

82°71°
87°66°
87°70°
82°68°
76°65°
71°62°
Todaymodels agreeTomorrowmodels agreeSundaymodels agreeMondaysplit ±10°Tuesdaymodels agreeWednesdaymodels agree
NWSNational Blend (NBM)
84°
Heavy drizzle
Today 84°·Low 71°·Rain 41%
AmericanNOAA GFS
82°
Light drizzle
Today 82°·Low 71°·Rain 41%
EuropeanECMWF
81°
Drizzle
Today 81°·Low 71°·Rain 88%
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Charleston weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Charleston weather in numbers

from 30 years of measured normals

Charleston swings 55°F across the year, from 86°F highs in July to 31°F lows in January, and August is usually the wettest month in a year that brings about 43 in of precipitation.

Warmest month
July
86°F average high
Coldest month
January
31°F average low
Wettest month
August
43 in a year
Below freezing
1 month
January
Comfortable
3 months
April, May and October
Residents
47,000
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The weather map: all three models at once

NWS, American, European side by side around Charleston and nearby towns.Live rain radar →
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Charleston hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Charleston 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Heavy drizzle
82° 71°
models agree
Tomorrow
Cloudy
87° 66°
models agree
Sun
Heavy drizzle
87° 70°
models agree
Mon
Drizzle
82° 68°
±10°
Tue
Light rain
76° 65°
models agree
Wed
Heavy drizzle
71° 62°
models agree
Thu
Drizzle
71° 59°
models agree
Fri
Light drizzle
72° 58°
models agree
Sat
Mostly clear
75° 55°
±7°
Sun
Partly cloudy
76° 55°
±11°
Mon
Cloudy
76° 56°
±7°
Tue
Drizzle
78° 55°
models agree
Wed
Showers
70° 54°
models agree
Thu
Cloudy
70° 48°
±8°

Charleston, West Virginia (WV) is at its warmest in Jul (average highs near 86°F) and coldest in Jan (lows around 31°F), with roughly 43 in of precipitation across the year. Below, compare what NWS, American, European forecast for Charleston right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.

Charleston climate by month

average daytime high and overnight low across a typical year
Jan
46°
31°
Feb
55°
34°
Mar
58°
37°
Apr
68°
46°
May
75°
55°
Jun
82°
61°
Jul
86°
67°
Aug
84°
65°
Sep
79°
60°
Oct
69°
49°
Nov
59°
40°
Dec
50°
34°

Which forecast is most accurate in Charleston?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
85
/100rank #1
84±1.6°F98±0.6 mph7687% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
58
/100rank #2
75±2.5°F95±1.6 mph1352% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.

NWSNational Blend (NBM)
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AmericanNOAA GFS
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EuropeanECMWF
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±3°81° to 84°±47%41% to 88% chance
Tomorrow±4°86° to 89°±6%12% to 18% chance
Sun±3°86° to 89°±18%47% to 65% chance
Mon±10°79° to 89°±2%55% to 57% chance
Tue±1°75° to 77°±9%65% to 74% chance

The models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Charleston

today, local time
Sunrise
07:10
Sunset
19:29
Daylight
12h 19m

Common questions

What's the weather in Charleston today?
On this page we show what NWS, American, European each forecast for Charleston today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Charleston today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Charleston and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Charleston?
Over the last 30 days, the European model has been the most accurate for Charleston (CheckWeather Score 85/100), ahead of the American at 58. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Charleston?
July is typically the warmest month in Charleston, with average highs around 86°F.
How cold does Charleston get?
The coldest month in Charleston is January, when overnight lows average about 31°F.
How much rain does Charleston get?
Charleston sees roughly 43 in of precipitation a year, with August usually the wettest month.

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