Guerneville Weather Forecast 15 Days, Weather in Guerneville Today
Current weather conditions and 15 day weather forecast for Guerneville, 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.
Current weather conditions at Guerneville
| 27 March 2026 Friday 6.1 ° C / 43°F  Clear |
Feels Like : 5.1 ° C / 41.1°F Humidity : % 97 Pressure : 1015 mb Wind Speed : 5.8 kmph / 3.6 miles from NNE  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Guerneville, CA, USA
Weather Forecast for next 15 Days for Guerneville including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Guerneville, California state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 27 March 2026 Friday | Sunny |
10.5 ° C (50.9°F) |
28.6 ° C (83.5°F) |
17.8 ° C (64°F) |
% 43 | 0% | 1.5 | Sunrise:07:04 AM Sunset: 07:31 PM |
Moonrise:02:04 PM Moonset: 04:18 AM Moon Phase ( Waxing Gibbous ) |
|
| 28 March 2026 Saturday |  Partly Cloudy |
7.4 ° C (45.3°F) |
22.6 ° C (72.7°F) |
14.8 ° C (58.6°F) |
% 76 | 0% | 1.6 | Sunrise:07:03 AM Sunset: 07:32 PM |
Moonrise:03:15 PM Moonset: 04:54 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 March 2026 Sunday |  Mist |
8.8 ° C (47.8°F) |
20.1 ° C (68.2°F) |
14.8 ° C (58.6°F) |
% 78 | 0% | 1.4 | Sunrise:07:01 AM Sunset: 07:33 PM |
Moonrise:04:24 PM Moonset: 05:24 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 March 2026 Monday | Partly Cloudy |
10.1 ° C (50.1°F) |
22.7 ° C (72.8°F) |
15.1 ° C (59.1°F) |
% 49 | 0% | 1 | Sunrise:07:00 AM Sunset: 07:34 PM |
Moonrise:05:30 PM Moonset: 05:49 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 March 2026 Tuesday |  Patchy rain nearby |
8.8 ° C (47.8°F) |
14.7 ° C (58.5°F) |
10.9 ° C (51.6°F) |
% 80 | 83% | 0 | Sunrise:06:58 AM Sunset: 07:35 PM |
Moonrise:06:34 PM Moonset: 06:12 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 April 2026 Wednesday | Sunny |
4.9 ° C (40.9°F) |
18.2 ° C (64.8°F) |
11.3 ° C (52.4°F) |
% 72 | 0% | 4 | Sunrise:06:57 AM Sunset: 07:36 PM |
Moonrise:07:37 PM Moonset: 06:34 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 April 2026 Thursday | Sunny |
4.4 ° C (39.9°F) |
21.5 ° C (70.8°F) |
12 ° C (53.6°F) |
% 68 | 0% | 4 | Sunrise:06:55 AM Sunset: 07:37 PM |
Moonrise:08:40 PM Moonset: 06:57 AM Moon Phase ( Full Moon ) |
|
| 03 April 2026 Friday | Partly Cloudy |
7.7 ° C (45.8°F) |
24.2 ° C (75.6°F) |
14.4 ° C (58°F) |
% 64 | 0% | 4 | Sunrise:06:53 AM Sunset: 07:38 PM |
Moonrise:09:43 PM Moonset: 07:22 AM Moon Phase ( Waning Gibbous ) |
|
| 04 April 2026 Saturday | Sunny |
5.5 ° C (41.9°F) |
20.6 ° C (69.2°F) |
12.7 ° C (54.9°F) |
% 72 | 0% | 4 | Sunrise:06:52 AM Sunset: 07:39 PM |
Moonrise:10:46 PM Moonset: 07:49 AM Moon Phase ( Waning Gibbous ) |
|
| 05 April 2026 Sunday |  Cloudy |
4.2 ° C (39.5°F) |
18.1 ° C (64.7°F) |
9.7 ° C (49.5°F) |
% 65 | 0% | 2 | Sunrise:06:50 AM Sunset: 07:40 PM |
Moonrise:11:48 PM Moonset: 08:21 AM Moon Phase ( Waning Gibbous ) |
|
| 06 April 2026 Monday | Sunny |
2.4 ° C (36.3°F) |
21.3 ° C (70.4°F) |
10.3 ° C (50.6°F) |
% 57 | 0% | 4 | Sunrise:06:49 AM Sunset: 07:41 PM |
Moonrise:No moonrise Moonset: 08:59 AM Moon Phase ( Waning Gibbous ) |
|
| 07 April 2026 Tuesday | Sunny |
5 ° C (41°F) |
25.2 ° C (77.4°F) |
14.3 ° C (57.8°F) |
% 51 | 0% | 4 | Sunrise:06:47 AM Sunset: 07:41 PM |
Moonrise:12:46 AM Moonset: 09:44 AM Moon Phase ( Waning Gibbous ) |
|
| 08 April 2026 Wednesday | Sunny |
10.5 ° C (50.9°F) |
27.5 ° C (81.5°F) |
17.3 ° C (63.1°F) |
% 53 | 0% | 5 | Sunrise:06:46 AM Sunset: 07:42 PM |
Moonrise:01:40 AM Moonset: 10:35 AM Moon Phase ( Waning Gibbous ) |
|
| 09 April 2026 Thursday | Partly Cloudy |
7.2 ° C (45°F) |
23 ° C (73.3°F) |
15 ° C (58.9°F) |
% 63 | 0% | 4 | Sunrise:06:44 AM Sunset: 07:43 PM |
Moonrise:02:27 AM Moonset: 11:33 AM Moon Phase ( Waning Gibbous ) |
|
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