Temperature
69 F at 12 AM; 88 F at its warmest, 1 PM Thursday, and 67 F at its coolest, 4 AM Thursday.
- Now
- 69F
- 12 AM
- Highest
- 88F
- 1 PM Thursday
- Lowest
- 67F
- 4 AM Thursday
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Airports/South Carolina/Charleston Executive Airport
Charleston Executive Airport, South Carolina
Small airport in Charleston County, South Carolina70°
84°/70°
Clear·
Feels like 70°·Calm 0 mph SSW
Coming up. Tomorrow is 13 degrees cooler: a high of 71° after 84° today.
Now. Charleston Executive Airport is 70° and clear at 1 AM. The dew point is 68°, so the air feels oppressive. The air is calm.
Today and tonight. It warms to about 83° by 3 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 74°, and the coolest Sunday, near 65°. The days ahead look dry. The windiest day is Sunday, with wind to 20 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.
0UV Low
26Air quality
100%Humidity
1%Cloud
Now
1:00 AM
70feels70
now, clear
Today
Oct 16
8470
UV 7
Sat
Oct 17
7163
29%
18mph
Sun
Oct 18
6550
20mph
UV 6
Mon
Oct 19
7052
14mph
UV 6
Tue
Oct 20
7355
UV 6
Wed
Oct 21
7457
UV 6
Thu
Oct 22
7357
UV 6
70°
84°70°
71°63°
65°50°
70°52°
73°55°
74°57°
73°57°
As of 1:00 AM in Charleston Executive Airport, South Carolina.
Air quality
The air at Charleston Executive Airport
Index 26, good, led by fine particles. Read at 12 AM from its reporting area, Charleston (SC), 8 miles off.
26Good
- Fine particles (PM2.5)26Good-
- Ozone14Good-
- Coarse particles (PM10)10Good-
- Nitrogen dioxide7Good7 ppb12.7 mi
- Sulfur dioxide0Good0.1 ppb12.7 mi
The days ahead
Yesterday measured 44, good.
GoodModerate
- 44YesterdayOct 15
Smoke, the next 44 hours
Little smoke near the ground through Sat 8 PM: the index from smoke stays at 17 or under.
Precipitation
What has fallen at Charleston Executive Airport
None in the last 3 days, to Fri 12 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 Executive Airport, the next 44 hours
Fog: visibility falls to 0.9 miles Fri 8 AM, under a mile for 1 hour.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- JZI
- ICAO
- KJZI
- IATA
- -
- Field elevation
- 17 ft
- Serves
- Johns Island
- Kind
- Small airport
- Scheduled service
- No
- Its own instrument
- JZI
- Wind now
- Calm, read 16 Oct, 00:55
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 04 / 22 | 4,313 ft | 150 ft | Concrete | 32° / 212° | Calm | Calm |
| 09 / 27 | 5,350 ft | 100 ft | Concrete | 90° / 270° | Calm | Calm |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Charleston Exec (JZI), Charleston Executive Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 69 F, the air 100% saturated; the humidity ran from 52% at 12 PM Thursday to 100% at 2 AM Thursday.
- Dew point now
- 69F
- 12 AM
- Humidity now
- 100%
- Humidity, range
- 52 to 100%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
Calm at 12 AM; at its strongest 9 mph, 5 PM Thursday, with a gust of 13 mph at 2 PM Thursday.
- Now
- 0mph
- calm
- Strongest
- 9mph
- 5 PM Thursday
- Highest gust
- 13mph
- 2 PM Thursday
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
30.08 inHg at 12 AM, steady over 3 hours; 0.01 inHg lower than a day before.
- Now
- 30.08inHg
- 12 AM
- 3 hours
- -0.01inHg
- steady
- 24 hours
- -0.01inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
Down to 1 miles at 12 AM; 1 miles now.
- Now
- 1mi
- Lowest
- 1mi
- 12 AM
- Hours under a mile
- 0
How it is measured: Fog types, Field Book FB-WAT-020
Cloud base
The lowest cloud base came down to 3,300 ft at 10 PM Thursday; a base was reported in 4 of the hours.
- Lowest base now
- -
- Lowest in 24 hours
- 3,300ft
- 10 PM Thursday
- Hours with a base reported
- 4
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 Exec: 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 Executive 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
At an airfield/0.2 mi away/17 ft/level with here
temp, wind, gust, visibility, precip, pressure
Charleston - Waterfront ParkCHLS1
At a river or reservoir gauge/7.1 mi away/-30 ft/47 ft below here
temp, wind, gust, humidity, pressure
Beside a road/8.4 mi away/13 ft/4 ft below here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Johns Island 1.8 NESC-CR-74
In a volunteer observer's own ground/1.6 mi away/8 ft/9 ft below here
precip, snowfall, snow depth
Custom HouseCHLS1
At a cooperative observer's station/7.2 mi away/39 ft/22 ft above 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 Executive Airport
The nearest places, each with its own forecast and the instruments nearest it.
- James Islandtown, 4 mi
- Folly Beachcity, 5 mi
- Charlestoncity, 7 mi
- Kiawah Islandtown, 7 mi
- Sullivan's Islandtown, 11 mi
- Hollywoodtown, 12 mi
- Seabrook Islandtown, 12 mi
- Rockvilletown, 13 mi
- Mount Pleasanttown, 14 mi
- Raveneltown, 14 mi
- Meggetttown, 15 mi
- North Charlestoncity, 15 mi
Airports near Charleston Executive Airport
- Charleston International AirportCHS, 14 mi
- Mount Pleasant Regional Airport Faison FieldLRO, 19 mi
- Summerville AirportDYB, 30 mi
- Berkeley County AirportMKS, 34 mi
- Lowcountry Regional AirportRBW, 40 mi
- Beaufort Executive AirportARW, 42 mi
- Beaufort MCAS - Merritt FieldNBC, 44 mi
- Hilton Head AirportHXD, 52 mi