Location & Surroundings
Lake John D Long is a dam in South Carolina, United States, at 134 m elevation. The nearest larger town is Union, 13 km to the southwest. The national capital Washington is about 605 km to the northeast. The nearest airport is Union County Airport - Troy Shelton Field, 16 km away.
Basic Data
- Type reservoir(s) (RSV)
- an artificial pond or lake
Geography
-
Coordinates
34° 46' 24" N, 81° 30' 23" W
- Elevation 134 m (DEM: 137 m)
- Timezone America/New_York
- Time Shift GMT -5 (DST -4)
Statistics & Country
- Pop. Density 20 p/km²
- Built-up 0.4%
- Settlement Very low density rural
- Currency Dollar (USD)
- Phone Prefix +1
Sun & Local Time
- Local time 13:15
- Sunrise 06:56
- Sunset 17:24
- Day length 10 h 28 min
Other reservoir(s)s nearby
Nearby
Weather in Lake John D Long
Current conditions and a 3-day (72-hour) weather forecast for Lake John D Long, updated from the NOAA GFS model.
Now 12.1 C with mostly clear skies and a 2.4 m/s south-westerly wind. Next 24h: 8.0 to 20.9 C, max wind 5.2 m/s. No precipitation expected. Solar peaks near 402 W/m2.
Temperature
12.1 C
Wind
2.4 m/s SW (233 deg)
Humidity
60 %
Pressure
1,007.2 hPa
Clouds
5 %
Precip
0.00 mm
Solar
0.0 W/m2
UV-B
n/a
| Hour | Temp (C) | Wind (m/s) | Dir (deg) | RH (%) | Pressure (hPa) | Precip (step/total mm) | Clouds (%) | Solar (W/m2) | UV-B (W/m2) |
|---|---|---|---|---|---|---|---|---|---|
| NOW | 12.1 | 2.4 | 233 | 60 | 1,007.2 | - / 0.00 | 5 | 0.0 | n/a |
| 6h | 13.5 | 4.1 | 238 | 81 | 1,004.8 | 0.00 / 0.00 | 0 | 0.0 | n/a |
| 12h | 20.9 | 5.2 | 291 | 39 | 1,002.6 | 0.00 / 0.00 | 18 | 402.3 | n/a |
| 18h | 11.2 | 4.7 | 328 | 54 | 1,006.4 | 0.00 / 0.00 | 25 | 195.1 | n/a |
| Tomorrow | 8.0 | 2.6 | 293 | 68 | 1,007.5 | 0.00 / 0.00 | 1 | 0.0 | n/a |
| 30h | 6.7 | 3.9 | 319 | 62 | 1,008.2 | 0.00 / 0.00 | 0 | 0.0 | n/a |
| 36h | 12.6 | 4.9 | 310 | 36 | 1,007.7 | 0.00 / 0.00 | 8 | 421.4 | n/a |
| 42h | 7.8 | 3.7 | 336 | 53 | 1,010.2 | 0.00 / 0.00 | 93 | 242.5 | n/a |
| Saturday | 3.5 | 2.0 | 317 | 76 | 1,013.3 | 0.00 / 0.00 | 5 | 0.0 | n/a |
| 54h | 2.0 | 1.9 | 324 | 77 | 1,017.0 | 0.00 / 0.00 | 0 | 0.0 | n/a |
| 60h | 11.5 | 3.4 | 328 | 31 | 1,018.1 | 0.00 / 0.00 | 5 | 418.1 | n/a |
| 66h | 4.8 | 2.4 | 336 | 56 | 1,022.5 | 0.00 / 0.00 | 0 | 245.6 | n/a |
| Sunday | 2.0 | 1.5 | 23 | 68 | 1,024.7 | 0.00 / 0.00 | 0 | 0.0 | n/a |
Source: NOAA GFS 0.25° (run 2026-11-12 06:00 UTC).
FAQ
What is the current weather and next 24-hour outlook in Lake John D Long?
Now 12.1 C with mostly clear skies and a 2.4 m/s south-westerly wind. Next 24h: 8.0 to 20.9 C, max wind 5.2 m/s. No precipitation expected. Solar peaks near 402 W/m2.
Is precipitation expected in the next 24 hours?
No measurable precipitation is expected in the next 24 hours.
When are sunrise and sunset in Lake John D Long today?
Sunrise around 06:56 and sunset around 17:24 (local time). Day length about 10h 28m.
What is the local time in Lake John D Long?
Local time is 13:15. Time zone: America/New_York (UTC-05:00).
What type of place is Lake John D Long?
Lake John D Long is a reservoir(s).
What is the elevation of Lake John D Long?
Elevation about 134 m. DEM 137 m.
Where is Lake John D Long located?
It is at 34.77347, -81.50649 (latitude, longitude).
Which country is Lake John D Long in?
It is in United States.