Temperature
69 F at 8 AM; 87 F at its warmest, 2 PM Thursday, and 67 F at its coolest, 5 AM.
- Now
- 69F
- 8 AM
- Highest
- 87F
- 2 PM Thursday
- Lowest
- 67F
- 5 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Airports/South Carolina/Charleston International Airport
Charleston International Airport, South Carolina
Large airport in Charleston County, South Carolina71°
86°/65°
Mostly clear·
Feels like 71°·Light air 2 mph WSW
Coming up. Tomorrow is 17 degrees cooler: a high of 69° after 86° today.
Now. Charleston International Airport is 71° and mostly clear at 9 AM. The dew point is 70°, so the air feels very oppressive. Light air from the west-southwest at 2 mph.
Today and tonight. It warms to about 84° by 2 PM. Tonight falls to about 67° by 8 AM, under a mostly clear sky. No rain is expected for the rest of the day. The sun is strong around midday: UV index 7, high. Unprotected skin can burn in under half an hour.
The week. The warmest day ahead is Wednesday, near 73°, and the coolest Sunday, near 63°. The days ahead look dry. The windiest day is tomorrow, with wind to 21 mph.
The sky tonight. The sun sets at 6:46 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:59 PM. The next full Moon is Monday, Oct 26. After dark, look for Saturn, bright in the east-southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The sky is forecast to stay clear: a good night to look up. The day is 11 hours 22 minutes long, 2 minutes shorter than yesterday.
1UV Low
26Air quality
96%Humidity
21%Cloud
Now
9:00 AM
71feels71
now, mostly clear
Today
Oct 16
8665
UV 7
Sat
Oct 17
6958
28%
21mph
Sun
Oct 18
6347
10%
19mph
UV 6
Mon
Oct 19
6848
10%
14mph
UV 6
Tue
Oct 20
7250
UV 6
Wed
Oct 21
7352
UV 6
Thu
Oct 22
7352
mostly clear day
71°
86°65°
69°58°
63°47°
68°48°
72°50°
73°52°
73°52°
As of 9:00 AM in Charleston International Airport, South Carolina.
Air quality
The air at Charleston International Airport
Index 26, good, led by fine particles. Read at 8 AM from its reporting area, Charleston (SC), 9 miles off.
26Good
- Fine particles (PM2.5)26Good22.4 mi
- Ozone9Good9 ppb22.4 mi
- Coarse particles (PM10)18Good-
- Nitrogen dioxide14Good15 ppb3.8 mi
- Sulfur dioxide0Good0.2 ppb3.8 mi
The days ahead
Yesterday measured 41, good.
GoodModerate
- 41YesterdayOct 15
Smoke, the next 42 hours
Little smoke near the ground through Sun 2 AM: the index from smoke stays at 17 or under.
Precipitation
What has fallen at Charleston International Airport
None in the last 3 days, to Fri 8 AM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.00in
- Last 3 days
- 0.00in
Visibility
How far you can see at Charleston International Airport, the next 42 hours
Visibility stays 8 miles or more through Sun 2 AM, lowest 9 miles Fri 9 AM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- CHS
- ICAO
- KCHS
- IATA
- CHS
- Field elevation
- 46 ft
- Serves
- Charleston
- Kind
- Large airport
- Scheduled service
- Yes
- Its own instrument
- CHS
- Wind now
- Calm, read 16 Oct, 08:56
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 03 / 21 | 7,000 ft | 150 ft | Asphalt | 24° / 204° | Calm | Calm |
| 15 / 33 | 9,001 ft | 150 ft | Concrete | 147° / 327° | Calm | Calm |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Charleston (CHS), Charleston International Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 68 F, the air 99% saturated; the humidity ran from 46% at 2 PM Thursday to 100% at 3 AM.
- Dew point now
- 68F
- 8 AM
- Humidity now
- 99%
- Humidity, range
- 46 to 100%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
2 mph from the west southwest at 9 AM; at its strongest 10 mph, 6 PM Thursday, with a gust of 22 mph at 11 PM Thursday.
- Now
- 2mph
- from the west southwest
- Strongest
- 10mph
- 6 PM Thursday
- Highest gust
- 22mph
- 11 PM Thursday
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
30.08 inHg at 9 AM, steady over 3 hours; 0.05 inHg lower than a day before.
- Now
- 30.08inHg
- 9 AM
- 3 hours
- +0.01inHg
- steady
- 24 hours
- -0.05inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
Down to 0.5 miles at 8 AM, under a mile for 1 hour; 10 miles or more now.
- Now
- 10+mi
- Lowest
- 0.5mi
- 8 AM
- Hours under a mile
- 1
How it is measured: Fog types, Field Book FB-WAT-020
Cloud base
The lowest cloud base came down to 200 ft at 7 AM; a base was reported in 14 of the hours.
- Lowest base now
- -
- Lowest in 24 hours
- 200ft
- 7 AM
- Hours with a base reported
- 14
How it is measured: Cloud classification, Field Book FB-SKY-001
Precipitation
None measured in the gauge in the last 24 hours.
- Last 24 hours
- 0.00in
- Wettest hour
- -
- Hours with some
- 0
How it is measured: ASOS, Field Book FB-INS-002
Charleston: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 5 instruments nearest Charleston International Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.
measured now3 instruments
CharlestonCHS
At an airfield/0.2 mi away/33 ft/13 ft below here
temp, wind, gust, visibility, precip, pressure
Beside a road/7.7 mi away/13 ft/33 ft below here
temp, pavement temp, wind, visibility, precip
Mount Pleasant 4WSW - WaterfrontMWPS1
At a river or reservoir gauge/10.4 mi away/4 ft/42 ft below here
temp, wind, gust, humidity, pressure
measured daily2 instruments
NWS Charleston SCSC-CR-49
In a volunteer observer's own ground/0.6 mi away/53 ft/7 ft above here
precip, snowfall, snow depth
Custom HouseCHLS1
At a cooperative observer's station/9.9 mi away/39 ft/7 ft below here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
-
Snow on the ground
Elsewhere in South Carolina
21 places, each with its own forecast and its own instruments.
AikencityAndersoncityBeaufortcityCaesars HeadfeatureCharlestoncityClemsoncityColumbiacityCongaree National ParkfeatureEdisto IslandtownFlorencecityGreenvillecityGreenwoodcityHilton Head IslandcityLake MurrayfeatureMyrtle BeachcityOrangeburgcityRock HillcitySassafras MountainfeatureSpartanburgcitySumtercityTable Rockfeature
Near Charleston International Airport
The nearest places, each with its own forecast and the instruments nearest it.
- North Charlestoncity, 1 mi
- Hanahancity, 2 mi
- Goose Creekcity, 8 mi
- Ladsoncommunity, 9 mi
- Charlestoncity, 9 mi
- Lincolnvilletown, 10 mi
- Sangareecommunity, 11 mi
- Summervilletown, 11 mi
- Mount Pleasanttown, 12 mi
- James Islandtown, 12 mi
- Hollywoodtown, 14 mi
- Raveneltown, 14 mi
Airports near Charleston International Airport
- Charleston Executive AirportJZI, 14 mi
- Mount Pleasant Regional Airport Faison FieldLRO, 15 mi
- Summerville AirportDYB, 18 mi
- Berkeley County AirportMKS, 20 mi
- Lowcountry Regional AirportRBW, 35 mi
- Beaufort Executive AirportARW, 48 mi
- Santee Cooper Regional AirportMNI, 49 mi
- Beaufort MCAS - Merritt FieldNBC, 49 mi