Cupertino Weather Forecast 15 Days, Weather in Cupertino Today
Current weather conditions and 15 day weather forecast for Cupertino, 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 Cupertino
| 28 December 2025 Sunday 10.2 ° C / 50.4°F  Partly Cloudy |
Feels Like : 9 ° C / 48.2°F Humidity : % 82 Pressure : 1024 mb Wind Speed : 9.4 kmph / 5.8 miles from NNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Cupertino, CA, USA
Weather Forecast for next 15 Days for Cupertino 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 Cupertino, 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 December 2025 Saturday | Partly Cloudy |
7.2 ° C (45°F) |
12.7 ° C (54.9°F) |
9.6 ° C (49.3°F) |
% 84 | 0% | 0.4 | Sunrise:07:21 AM Sunset: 04:58 PM |
Moonrise:11:50 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Sunny |
2.8 ° C (37°F) |
13.5 ° C (56.3°F) |
7.8 ° C (46.1°F) |
% 78 | 0% | 0.4 | Sunrise:07:22 AM Sunset: 04:58 PM |
Moonrise:12:16 PM Moonset: 12:52 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday |  Mist |
0.3 ° C (32.5°F) |
16.5 ° C (61.7°F) |
7 ° C (44.6°F) |
% 82 | 0% | 0.4 | Sunrise:07:22 AM Sunset: 04:59 PM |
Moonrise:12:46 PM Moonset: 02:02 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Sunny |
6.2 ° C (43.2°F) |
20.7 ° C (69.3°F) |
10.9 ° C (51.7°F) |
% 60 | 0% | 0.4 | Sunrise:07:22 AM Sunset: 05:00 PM |
Moonrise:01:23 PM Moonset: 03:17 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Sunny |
7.1 ° C (44.8°F) |
18.3 ° C (64.9°F) |
11.1 ° C (52°F) |
% 50 | 0% | 0.4 | Sunrise:07:22 AM Sunset: 05:01 PM |
Moonrise:02:09 PM Moonset: 04:34 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Partly Cloudy |
9.6 ° C (49.2°F) |
13 ° C (55.3°F) |
10.5 ° C (50.9°F) |
% 55 | 0% | 0 | Sunrise:07:23 AM Sunset: 05:02 PM |
Moonrise:03:07 PM Moonset: 05:51 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday |  Patchy rain nearby |
10.6 ° C (51.1°F) |
13.2 ° C (55.8°F) |
12.3 ° C (54.1°F) |
% 88 | 86% | 3 | Sunrise:07:23 AM Sunset: 05:02 PM |
Moonrise:04:15 PM Moonset: 07:00 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday | Patchy rain nearby |
13.3 ° C (56°F) |
16.8 ° C (62.2°F) |
14.5 ° C (58.1°F) |
% 93 | 85% | 3 | Sunrise:07:23 AM Sunset: 05:03 PM |
Moonrise:05:30 PM Moonset: 07:58 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday |  Moderate rain |
12.6 ° C (54.7°F) |
16.1 ° C (60.9°F) |
14.5 ° C (58°F) |
% 95 | 84% | 3 | Sunrise:07:23 AM Sunset: 05:04 PM |
Moonrise:06:46 PM Moonset: 08:44 AM Moon Phase ( Waning Gibbous ) |
|
| 05 January 2026 Monday | Patchy rain nearby |
13 ° C (55.5°F) |
15.3 ° C (59.5°F) |
14.1 ° C (57.4°F) |
% 91 | 88% | 3 | Sunrise:07:23 AM Sunset: 05:05 PM |
Moonrise:07:59 PM Moonset: 09:21 AM Moon Phase ( Waning Gibbous ) |
|
| 06 January 2026 Tuesday | Patchy rain nearby |
7.8 ° C (46°F) |
14.5 ° C (58.1°F) |
11.6 ° C (52.8°F) |
% 85 | 73% | 3 | Sunrise:07:23 AM Sunset: 05:06 PM |
Moonrise:09:08 PM Moonset: 09:52 AM Moon Phase ( Waning Gibbous ) |
|
| 07 January 2026 Wednesday | Sunny |
6.2 ° C (43.2°F) |
13.1 ° C (55.6°F) |
8.8 ° C (47.9°F) |
% 79 | 0% | 3 | Sunrise:07:23 AM Sunset: 05:07 PM |
Moonrise:10:12 PM Moonset: 10:17 AM Moon Phase ( Waning Gibbous ) |
|
| 08 January 2026 Thursday | Sunny |
6.2 ° C (43.2°F) |
15.5 ° C (60°F) |
10 ° C (50°F) |
% 76 | 0% | 3 | Sunrise:07:23 AM Sunset: 05:08 PM |
Moonrise:11:14 PM Moonset: 10:40 AM Moon Phase ( Waning Gibbous ) |
|
| 09 January 2026 Friday | Sunny |
6.9 ° C (44.4°F) |
16.9 ° C (62.4°F) |
10.8 ° C (51.5°F) |
% 70 | 0% | 4 | Sunrise:07:23 AM Sunset: 05:09 PM |
Moonrise:No moonrise Moonset: 11:03 AM Moon Phase ( Waning Gibbous ) |
|
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