Portola Weather Forecast 15 Days, Weather in Portola Today
Current weather conditions and 15 day weather forecast for Portola, 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 Portola
| 18 December 2025 Thursday 0.4 ° C / 32.7°F  Partly cloudy |
Feels Like : -1.9 ° C / 28.6°F Humidity : % 80 Pressure : 1023 mb Wind Speed : 6.8 kmph / 4.3 miles from SW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 50 |
15 day weather forecast for Portola, CA, USA
Weather Forecast for next 15 Days for Portola 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 Portola, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 18 December 2025 Thursday |  Cloudy |
1.2 ° C (34.1°F) |
7.4 ° C (45.3°F) |
4.1 ° C (39.4°F) |
% 55 | 0% | 0.4 | Sunrise:07:19 AM Sunset: 04:39 PM |
Moonrise:06:27 AM Moonset: 03:20 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Moderate rain |
0.9 ° C (33.6°F) |
4.5 ° C (40.1°F) |
2.2 ° C (36°F) |
% 92 | 87% | 0.2 | Sunrise:07:19 AM Sunset: 04:40 PM |
Moonrise:07:25 AM Moonset: 04:09 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Patchy rain nearby |
0.7 ° C (33.3°F) |
4.7 ° C (40.5°F) |
2.3 ° C (36.2°F) |
% 93 | 74% | 0.1 | Sunrise:07:20 AM Sunset: 04:40 PM |
Moonrise:08:15 AM Moonset: 05:05 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday |  Heavy rain |
0.8 ° C (33.5°F) |
6.5 ° C (43.7°F) |
3.2 ° C (37.7°F) |
% 95 | 80% | 0.2 | Sunrise:07:20 AM Sunset: 04:41 PM |
Moonrise:08:59 AM Moonset: 06:07 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Heavy rain |
-1.5 ° C (29.2°F) |
4.1 ° C (39.4°F) |
1.4 ° C (34.5°F) |
% 97 | 70% | 0 | Sunrise:07:21 AM Sunset: 04:41 PM |
Moonrise:09:36 AM Moonset: 07:12 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Moderate rain |
-0.2 ° C (31.6°F) |
5.4 ° C (41.7°F) |
2.3 ° C (36.1°F) |
% 93 | 89% | 1 | Sunrise:07:21 AM Sunset: 04:42 PM |
Moonrise:10:06 AM Moonset: 08:18 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday |  Heavy snow |
-2 ° C (28.4°F) |
1.5 ° C (34.6°F) |
-0.1 ° C (31.9°F) |
% 99 | 74% | 1 | Sunrise:07:22 AM Sunset: 04:42 PM |
Moonrise:10:33 AM Moonset: 09:25 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Heavy snow |
-2.1 ° C (28.2°F) |
1.2 ° C (34.2°F) |
-1 ° C (30.2°F) |
% 100 | 86% | 1 | Sunrise:07:22 AM Sunset: 04:43 PM |
Moonrise:10:57 AM Moonset: 10:31 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Fog |
-2.7 ° C (27.2°F) |
2 ° C (35.6°F) |
-0.9 ° C (30.4°F) |
% 100 | 75% | 1 | Sunrise:07:22 AM Sunset: 04:44 PM |
Moonrise:11:19 AM Moonset: 11:38 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Fog |
-3.4 ° C (25.9°F) |
2 ° C (35.6°F) |
-0.8 ° C (30.6°F) |
% 99 | 0% | 1 | Sunrise:07:23 AM Sunset: 04:44 PM |
Moonrise:11:42 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Fog |
-3.6 ° C (25.5°F) |
2.4 ° C (36.4°F) |
-0.8 ° C (30.5°F) |
% 98 | 0% | 1 | Sunrise:07:23 AM Sunset: 04:45 PM |
Moonrise:12:06 PM Moonset: 12:48 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Fog |
-4 ° C (24.8°F) |
2.2 ° C (36°F) |
-0.8 ° C (30.5°F) |
% 98 | 0% | 1 | Sunrise:07:23 AM Sunset: 04:46 PM |
Moonrise:12:35 PM Moonset: 02:01 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Freezing fog |
-8.2 ° C (17.2°F) |
2.2 ° C (36°F) |
-1.5 ° C (29.4°F) |
% 98 | 0% | 1 | Sunrise:07:23 AM Sunset: 04:47 PM |
Moonrise:01:10 PM Moonset: 03:18 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday |  Mist |
-2.3 ° C (27.8°F) |
2.9 ° C (37.3°F) |
0.2 ° C (32.4°F) |
% 97 | 81% | 1 | Sunrise:07:23 AM Sunset: 04:47 PM |
Moonrise:01:54 PM Moonset: 04:36 AM Moon Phase ( Waxing Gibbous ) |
|
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