Current weather conditions and 15 day weather forecast for St. Helena Fire Department 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.
| 12 August 2026 Wednesday 32.1 ° C / 89.8°F ![]() Sunny |
Feels Like : 32.1 ° C / 89.8°F Humidity : % 40 Pressure : 1009 mb Wind Speed : 11.9 kmph / 7.4 miles from SSW ![]() Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 2 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 12 August 2026 Wednesday | Sunny |
11.8 ° C (53.2°F) |
32.1 ° C (89.8°F) |
20 ° C (68°F) |
% 70 | 7% | 8.3 | Sunrise:06:21 AM Sunset: 08:08 PM |
Moonrise:05:52 AM Moonset: 08:12 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday | Sunny |
9.9 ° C (49.8°F) |
27.1 ° C (80.9°F) |
17.4 ° C (63.3°F) |
% 73 | 9% | 8.2 | Sunrise:06:22 AM Sunset: 08:07 PM |
Moonrise:07:11 AM Moonset: 08:42 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday | Sunny |
10.2 ° C (50.4°F) |
28.2 ° C (82.8°F) |
17.8 ° C (64°F) |
% 69 | 8% | 8.6 | Sunrise:06:23 AM Sunset: 08:05 PM |
Moonrise:08:28 AM Moonset: 09:09 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday | Sunny |
9.4 ° C (48.9°F) |
29.4 ° C (85°F) |
17.7 ° C (63.8°F) |
% 65 | 5% | 8.6 | Sunrise:06:24 AM Sunset: 08:04 PM |
Moonrise:09:41 AM Moonset: 09:35 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday | Sunny |
10.2 ° C (50.4°F) |
32.3 ° C (90.1°F) |
19.8 ° C (67.6°F) |
% 52 | 2% | 8.8 | Sunrise:06:25 AM Sunset: 08:03 PM |
Moonrise:10:53 AM Moonset: 10:01 PM Moon Phase ( Waxing Crescent ) |
|
| 17 August 2026 Monday | Sunny |
10.8 ° C (51.5°F) |
31.1 ° C (88°F) |
19.4 ° C (67°F) |
% 50 | 2% | 8 | Sunrise:06:26 AM Sunset: 08:02 PM |
Moonrise:12:03 PM Moonset: 10:30 PM Moon Phase ( Waxing Crescent ) |
|
| 18 August 2026 Tuesday | Sunny |
12.1 ° C (53.8°F) |
34.3 ° C (93.7°F) |
22 ° C (71.6°F) |
% 43 | 1% | 8 | Sunrise:06:27 AM Sunset: 08:00 PM |
Moonrise:01:12 PM Moonset: 11:03 PM Moon Phase ( First Quarter ) |
|
| 19 August 2026 Wednesday | Sunny |
11.7 ° C (53°F) |
33.1 ° C (91.6°F) |
20.6 ° C (69.1°F) |
% 45 | 1% | 8 | Sunrise:06:27 AM Sunset: 07:59 PM |
Moonrise:02:19 PM Moonset: 11:40 PM Moon Phase ( First Quarter ) |
|
| 20 August 2026 Thursday | Sunny |
11 ° C (51.7°F) |
32.7 ° C (90.9°F) |
20.9 ° C (69.6°F) |
% 54 | 2% | 8 | Sunrise:06:28 AM Sunset: 07:58 PM |
Moonrise:03:23 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday | Sunny |
12.6 ° C (54.6°F) |
36 ° C (96.9°F) |
22.8 ° C (73.1°F) |
% 41 | 1% | 9 | Sunrise:06:29 AM Sunset: 07:56 PM |
Moonrise:04:20 PM Moonset: 12:25 AM Moon Phase ( First Quarter ) |
|
| 22 August 2026 Saturday | Sunny |
15.1 ° C (59.2°F) |
36.2 ° C (97.2°F) |
23.8 ° C (74.9°F) |
% 35 | 1% | 9 | Sunrise:06:30 AM Sunset: 07:55 PM |
Moonrise:05:10 PM Moonset: 01:16 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 August 2026 Sunday | Sunny |
14.6 ° C (58.2°F) |
37.6 ° C (99.7°F) |
23.7 ° C (74.6°F) |
% 35 | 1% | 9 | Sunrise:06:31 AM Sunset: 07:53 PM |
Moonrise:05:52 PM Moonset: 02:12 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 August 2026 Monday | Sunny |
15.9 ° C (60.6°F) |
38.6 ° C (101.5°F) |
25.7 ° C (78.2°F) |
% 27 | 1% | 9 | Sunrise:06:32 AM Sunset: 07:52 PM |
Moonrise:06:26 PM Moonset: 03:12 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 August 2026 Tuesday | Sunny |
19.2 ° C (66.5°F) |
40.2 ° C (104.4°F) |
28 ° C (82.4°F) |
% 22 | 1% | 10 | Sunrise:06:33 AM Sunset: 07:51 PM |
Moonrise:06:56 PM Moonset: 04:13 AM Moon Phase ( Full Moon ) |
|