Current weather conditions and 15 day weather forecast for John Muir Mt. Diablo Medical Center Heliport, 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.
| 17 December 2025 Wednesday 9.4 ° C / 48.9°F ![]() Mist |
Feels Like : 8 ° C / 46.5°F Humidity : % 97 Pressure : 1022 mb Wind Speed : 9.4 kmph / 5.8 miles from SSE ![]() Visibility : 4 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 17 December 2025 Wednesday | Patchy rain nearby |
7.2 ° C (45°F) |
18.9 ° C (66°F) |
10.9 ° C (51.7°F) |
% 90 | 89% | 0.3 | Sunrise:07:17 AM Sunset: 04:49 PM |
Moonrise:05:25 AM Moonset: 02:50 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Cloudy |
9.2 ° C (48.6°F) |
14.4 ° C (57.9°F) |
11.5 ° C (52.6°F) |
% 83 | 0% | 0.4 | Sunrise:07:17 AM Sunset: 04:49 PM |
Moonrise:06:24 AM Moonset: 03:32 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday | Overcast |
10 ° C (50°F) |
14.8 ° C (58.6°F) |
12.3 ° C (54.1°F) |
% 82 | 0% | 0.4 | Sunrise:07:18 AM Sunset: 04:50 PM |
Moonrise:07:21 AM Moonset: 04:21 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Patchy rain nearby |
11.3 ° C (52.3°F) |
18.5 ° C (65.2°F) |
14.2 ° C (57.6°F) |
% 80 | 71% | 0.3 | Sunrise:07:18 AM Sunset: 04:50 PM |
Moonrise:08:12 AM Moonset: 05:17 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Patchy rain nearby |
14.9 ° C (58.9°F) |
18.3 ° C (64.9°F) |
16 ° C (60.9°F) |
% 80 | 81% | 0 | Sunrise:07:19 AM Sunset: 04:51 PM |
Moonrise:08:57 AM Moonset: 06:18 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Sunny |
13 ° C (55.4°F) |
18.9 ° C (65.9°F) |
15.1 ° C (59.2°F) |
% 72 | 0% | 5 | Sunrise:07:19 AM Sunset: 04:51 PM |
Moonrise:09:35 AM Moonset: 07:23 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Patchy rain nearby |
11.4 ° C (52.5°F) |
17.4 ° C (63.4°F) |
13.3 ° C (56°F) |
% 79 | 89% | 3 | Sunrise:07:20 AM Sunset: 04:52 PM |
Moonrise:10:06 AM Moonset: 08:27 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Patchy rain nearby |
7.1 ° C (44.8°F) |
12.1 ° C (53.7°F) |
10.1 ° C (50.3°F) |
% 77 | 70% | 3 | Sunrise:07:20 AM Sunset: 04:52 PM |
Moonrise:10:34 AM Moonset: 09:32 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Patchy rain nearby |
6.8 ° C (44.2°F) |
8.9 ° C (48.1°F) |
7.5 ° C (45.5°F) |
% 86 | 77% | 2 | Sunrise:07:21 AM Sunset: 04:53 PM |
Moonrise:10:59 AM Moonset: 10:37 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Patchy rain nearby |
9.7 ° C (49.5°F) |
13.9 ° C (57°F) |
11.1 ° C (52.1°F) |
% 88 | 66% | 3 | Sunrise:07:21 AM Sunset: 04:54 PM |
Moonrise:11:23 AM Moonset: 11:43 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Partly Cloudy |
9.3 ° C (48.7°F) |
14.8 ° C (58.6°F) |
12.1 ° C (53.7°F) |
% 78 | 0% | 4 | Sunrise:07:21 AM Sunset: 04:54 PM |
Moonrise:11:48 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Partly Cloudy |
8.5 ° C (47.3°F) |
14.2 ° C (57.5°F) |
11.2 ° C (52.2°F) |
% 70 | 0% | 4 | Sunrise:07:22 AM Sunset: 04:55 PM |
Moonrise:12:13 PM Moonset: 12:50 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Sunny |
6.2 ° C (43.1°F) |
14.4 ° C (58°F) |
9.7 ° C (49.5°F) |
% 65 | 0% | 3 | Sunrise:07:22 AM Sunset: 04:56 PM |
Moonrise:12:43 PM Moonset: 02:02 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Patchy rain nearby |
8 ° C (46.5°F) |
12.8 ° C (55.1°F) |
11.1 ° C (51.9°F) |
% 74 | 83% | 3 | Sunrise:07:22 AM Sunset: 04:57 PM |
Moonrise:01:20 PM Moonset: 03:17 AM Moon Phase ( Waxing Gibbous ) |
|