Current weather conditions and 15 day weather forecast for Grand Terrace, California, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
| 12 August 2026 Wednesday 32.3 ° C / 90.1°F ![]() Clear |
Feels Like : 34 ° C / 93.2°F Humidity : % 32 Pressure : 1012 mb Wind Speed : 11.9 kmph / 7.4 miles from WSW ![]() Visibility : 16.1 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 11 August 2026 Tuesday | Sunny |
21.5 ° C (70.7°F) |
40 ° C (104°F) |
29 ° C (84.2°F) |
% 47 | 1% | 9 | Sunrise:06:08 AM Sunset: 07:40 PM |
Moonrise:04:23 AM Moonset: 07:04 PM Moon Phase ( New Moon ) |
|
| 12 August 2026 Wednesday | Sunny |
18.4 ° C (65.2°F) |
32.6 ° C (90.8°F) |
25.6 ° C (78.1°F) |
% 51 | 2% | 8.5 | Sunrise:06:08 AM Sunset: 07:39 PM |
Moonrise:05:40 AM Moonset: 07:43 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday | Sunny |
18.3 ° C (65°F) |
27.9 ° C (82.2°F) |
23.4 ° C (74.2°F) |
% 56 | 5% | 6.7 | Sunrise:06:09 AM Sunset: 07:38 PM |
Moonrise:06:56 AM Moonset: 08:16 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday | Sunny |
15.2 ° C (59.3°F) |
31.8 ° C (89.3°F) |
23.3 ° C (73.9°F) |
% 51 | 2% | 10.2 | Sunrise:06:10 AM Sunset: 07:37 PM |
Moonrise:08:08 AM Moonset: 08:47 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday | Sunny |
16.1 ° C (60.9°F) |
33.7 ° C (92.7°F) |
24.3 ° C (75.7°F) |
% 42 | 1% | 10.4 | Sunrise:06:10 AM Sunset: 07:36 PM |
Moonrise:09:18 AM Moonset: 09:17 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday | Sunny |
17.8 ° C (64°F) |
33.5 ° C (92.3°F) |
25.2 ° C (77.3°F) |
% 37 | 1% | 8 | Sunrise:06:11 AM Sunset: 07:35 PM |
Moonrise:10:26 AM Moonset: 09:46 PM Moon Phase ( Waxing Crescent ) |
|
| 17 August 2026 Monday | Sunny |
18.9 ° C (66°F) |
34.7 ° C (94.4°F) |
25.8 ° C (78.5°F) |
% 31 | 1% | 8 | Sunrise:06:12 AM Sunset: 07:34 PM |
Moonrise:11:33 AM Moonset: 10:18 PM Moon Phase ( Waxing Crescent ) |
|
| 18 August 2026 Tuesday | Sunny |
18.7 ° C (65.7°F) |
35.5 ° C (95.9°F) |
26.5 ° C (79.7°F) |
% 29 | 1% | 9 | Sunrise:06:13 AM Sunset: 07:33 PM |
Moonrise:12:39 PM Moonset: 10:54 PM Moon Phase ( First Quarter ) |
|
| 19 August 2026 Wednesday | Sunny |
17.8 ° C (64°F) |
33 ° C (91.4°F) |
24.3 ° C (75.8°F) |
% 39 | 1% | 8 | Sunrise:06:13 AM Sunset: 07:31 PM |
Moonrise:01:43 PM Moonset: 11:34 PM Moon Phase ( First Quarter ) |
|
| 20 August 2026 Thursday | Sunny |
14.7 ° C (58.4°F) |
31.8 ° C (89.2°F) |
22.7 ° C (72.9°F) |
% 48 | 1% | 8 | Sunrise:06:14 AM Sunset: 07:30 PM |
Moonrise:02:45 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday | Sunny |
15.4 ° C (59.7°F) |
32.9 ° C (91.2°F) |
23.5 ° C (74.3°F) |
% 47 | 1% | 8 | Sunrise:06:15 AM Sunset: 07:29 PM |
Moonrise:03:41 PM Moonset: 12:20 AM Moon Phase ( First Quarter ) |
|
| 22 August 2026 Saturday | Sunny |
16.9 ° C (62.5°F) |
33.4 ° C (92.2°F) |
24.4 ° C (76°F) |
% 48 | 1% | 8 | Sunrise:06:15 AM Sunset: 07:28 PM |
Moonrise:04:32 PM Moonset: 01:11 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 August 2026 Sunday | Sunny |
18 ° C (64.3°F) |
33.6 ° C (92.5°F) |
24.9 ° C (76.8°F) |
% 48 | 1% | 8 | Sunrise:06:16 AM Sunset: 07:27 PM |
Moonrise:05:15 PM Moonset: 02:06 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 August 2026 Monday | Sunny |
19.1 ° C (66.3°F) |
35.5 ° C (95.8°F) |
26.2 ° C (79.2°F) |
% 41 | 1% | 9 | Sunrise:06:17 AM Sunset: 07:25 PM |
Moonrise:05:53 PM Moonset: 03:05 AM Moon Phase ( Waxing Gibbous ) |
|