Location & Surroundings
Exit 21 is a road junction in California, United States, at 228 m elevation. The nearest larger town is Diamond Bar, 4 km to the south. The national capital Washington is about 3655 km to the east. The nearest airport is Cable Airport, 12 km away.
Basic Data
- Type road junction (RDJCT)
- a place where two or more roads join
Geography
-
Coordinates
34° 3' 40" N, 117° 48' 17" W
- Elevation 228 m (DEM: 239 m)
- Timezone America/Los_Angeles
- Time Shift GMT -8 (DST -7)
Statistics & Country
- Pop. Density 1,252 p/km²
- Built-up 11.6%
- Settlement Urban centre
- Currency Dollar (USD)
- Phone Prefix +1
Sun & Local Time
- Local time 08:31
- Sunrise 06:53
- Sunset 18:22
- Day length 11 h 29 min
Nearby
Weather in Exit 21
Current conditions and a 3-day (72-hour) weather forecast for Exit 21, updated from the NOAA GFS model.
Now 16.0 C with overcast skies and a 2.7 m/s south-westerly wind. Next 24h: 14.8 to 16.0 C, max wind 3.3 m/s. Precip around 0.3 mm. Solar peaks near 274 W/m2.
Temperature
16.0 C
Wind
2.7 m/s SW (206 deg)
Humidity
73 %
Pressure
1,010.3 hPa
Clouds
95 %
Precip
0.27 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 | 16.0 | 2.7 | 206 | 73 | 1,010.3 | - / 0.00 | 95 | 0.0 | n/a |
| 6h | 15.0 | 2.5 | 220 | 77 | 1,010.2 | 1.53 / 1.53 | 97 | 0.0 | n/a |
| 12h | 15.6 | 3.1 | 221 | 68 | 1,012.6 | 0.92 / 2.46 | 76 | 124.1 | n/a |
| 18h | 15.8 | 3.3 | 228 | 62 | 1,011.5 | 0.00 / 1.17 | 87 | 274.0 | n/a |
| Tomorrow | 14.8 | 2.5 | 247 | 60 | 1,014.2 | 0.00 / 0.27 | 48 | 6.0 | n/a |
| 30h | 13.5 | 1.6 | 266 | 64 | 1,014.5 | 0.00 / 0.01 | 9 | 0.0 | n/a |
| 36h | 17.6 | 1.3 | 203 | 45 | 1,016.3 | 0.00 / 0.00 | 3 | 242.7 | n/a |
| 42h | 21.1 | 0.7 | 296 | 30 | 1,014.7 | 0.00 / 0.00 | 0 | 631.2 | n/a |
| Wednesday | 17.5 | 1.1 | 302 | 41 | 1,017.8 | 0.00 / 0.00 | 0 | 20.2 | n/a |
| 54h | 16.4 | 1.3 | 27 | 36 | 1,017.5 | 0.00 / 0.00 | 0 | 0.0 | n/a |
| 60h | 22.7 | 0.8 | 167 | 16 | 1,018.2 | 0.00 / 0.00 | 0 | 248.7 | n/a |
| 66h | 25.5 | 3.1 | 242 | 12 | 1,015.4 | 0.00 / 0.00 | 0 | 644.6 | n/a |
| Thursday | 20.1 | 0.7 | 13 | 29 | 1,017.3 | 0.00 / 0.00 | 0 | 20.2 | n/a |
Source: NOAA GFS 0.25° (run 2026-10-12 06:00 UTC).
FAQ
What is the current weather and next 24-hour outlook in Exit 21?
Now 16.0 C with overcast skies and a 2.7 m/s south-westerly wind. Next 24h: 14.8 to 16.0 C, max wind 3.3 m/s. Precip around 0.3 mm. Solar peaks near 274 W/m2.
Is precipitation expected in the next 24 hours?
Around 0.3 mm of precipitation is expected in the next 24 hours.
When are sunrise and sunset in Exit 21 today?
Sunrise around 06:53 and sunset around 18:22 (local time). Day length about 11h 29m.
What is the local time in Exit 21?
Local time is 08:31. Time zone: America/Los_Angeles (UTC-07:00).
What type of place is Exit 21?
Exit 21 is a road junction.
What is the elevation of Exit 21?
Elevation about 228 m. DEM 239 m.
Where is Exit 21 located?
It is at 34.06111, -117.80472 (latitude, longitude).
Which country is Exit 21 in?
It is in United States.