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Weather Cupertino: Current forecast

Cupertino / California (CA) / United States

74.1 °F
Feels like 63.7 °F
Min 54 °F / Max 89 °F
Weather Cupertino: Sunny, 74 °F Sunny
5.6 mph NNW
Wind
6.5 mph NNW
Gusts
1016 hPa
Pressure
0 mm
Precipitation
57 %
Humidity
7.6
UV index

Pollen (today)

Hazel None
Alder None
Birch None
Oak None
Grass Moderate
Mugwort Low
Ragweed None
06:08 / 20:20
Sunrise / Sunset
19:45 / 04:21
Moonrise / Moonset
Full Moon (99 %)
Moon phase

Updated: Jul 27, 2026, 20:30 CEST Jul 27, 2026, 11:30 PDT

Today's Summary

If you head out in Cupertino today, you'll see a sunny sky. The thermometer currently shows 23.4°C. With wind from the north-north-west, it feels noticeably colder, around 17.6°C. UV radiation is high today – sun cream and sunglasses are essential. During the day temperatures will range between 12.4°C and 31.5°C.

Hourly forecast – Cupertino, today

Jul 27, 11:00
78 °F
Sunny
Cupertino Jul 27, 11:00: Sunny, 78 °F
Jul 27, 12:00
87 °F
Sunny
Cupertino Jul 27, 12:00: Sunny, 87 °F
Jul 27, 13:00
89 °F
Sunny
Cupertino Jul 27, 13:00: Sunny, 89 °F
Jul 27, 14:00
89 °F
Sunny
Cupertino Jul 27, 14:00: Sunny, 89 °F
Jul 27, 15:00
86 °F
Sunny
Cupertino Jul 27, 15:00: Sunny, 86 °F
Jul 27, 16:00
82 °F
Sunny
Cupertino Jul 27, 16:00: Sunny, 82 °F
Jul 27, 17:00
76 °F
Sunny
Cupertino Jul 27, 17:00: Sunny, 76 °F
Jul 27, 18:00
71 °F
Sunny
Cupertino Jul 27, 18:00: Sunny, 71 °F
Jul 27, 19:00
66 °F
Clear
Cupertino Jul 27, 19:00: Clear, 66 °F
Jul 27, 20:00
63 °F
Clear
Cupertino Jul 27, 20:00: Clear, 63 °F
Jul 27, 21:00
56 °F
Clear
Cupertino Jul 27, 21:00: Clear, 56 °F
Jul 27, 22:00
55 °F
Clear
Cupertino Jul 27, 22:00: Clear, 55 °F
Jul 27, 23:00
55 °F
Clear
Cupertino Jul 27, 23:00: Clear, 55 °F
Jul 28, 00:00
54 °F
Clear
Cupertino Jul 28, 00:00: Clear, 54 °F
Jul 28, 01:00
54 °F
Clear
Cupertino Jul 28, 01:00: Clear, 54 °F
Jul 28, 02:00
54 °F
Clear
Cupertino Jul 28, 02:00: Clear, 54 °F
Jul 28, 03:00
53 °F
Clear
Cupertino Jul 28, 03:00: Clear, 53 °F
Jul 28, 04:00
53 °F
Clear
Cupertino Jul 28, 04:00: Clear, 53 °F
Jul 28, 05:00
57 °F
Sunny
Cupertino Jul 28, 05:00: Sunny, 57 °F
Jul 28, 06:00
63 °F
Sunny
Cupertino Jul 28, 06:00: Sunny, 63 °F
Jul 28, 07:00
69 °F
Sunny
Cupertino Jul 28, 07:00: Sunny, 69 °F
Jul 28, 08:00
75 °F
Sunny
Cupertino Jul 28, 08:00: Sunny, 75 °F
Jul 28, 09:00
80 °F
Sunny
Cupertino Jul 28, 09:00: Sunny, 80 °F
Jul 28, 10:00
83 °F
Sunny
Cupertino Jul 28, 10:00: Sunny, 83 °F
Time
11
12
13
14
15
16
17
18
19
20
21
22
23
00
01
02
03
04
05
06
07
08
09
10
Cupertino Jul 27, 11:00: Sunny
Cupertino Jul 27, 12:00: Sunny
Cupertino Jul 27, 13:00: Sunny
Cupertino Jul 27, 14:00: Sunny
Cupertino Jul 27, 15:00: Sunny
Cupertino Jul 27, 16:00: Sunny
Cupertino Jul 27, 17:00: Sunny
Cupertino Jul 27, 18:00: Sunny
Cupertino Jul 27, 19:00: Clear
Cupertino Jul 27, 20:00: Clear
Cupertino Jul 27, 21:00: Clear
Cupertino Jul 27, 22:00: Clear
Cupertino Jul 27, 23:00: Clear
Cupertino Jul 28, 00:00: Clear
Cupertino Jul 28, 01:00: Clear
Cupertino Jul 28, 02:00: Clear
Cupertino Jul 28, 03:00: Clear
Cupertino Jul 28, 04:00: Clear
Cupertino Jul 28, 05:00: Sunny
Cupertino Jul 28, 06:00: Sunny
Cupertino Jul 28, 07:00: Sunny
Cupertino Jul 28, 08:00: Sunny
Cupertino Jul 28, 09:00: Sunny
Cupertino Jul 28, 10:00: Sunny
Temperature (°F)
Chance of rain (%)
2
1
1
0
1
1
1
1
2
4
6
6
7
9
10
11
11
11
9
5
3
1
1
1
Precipitation
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Wind (mph)
NW
8
NW
9
NW
10
NW
11
NW
10
NW
9
NW
8
WNW
6
WNW
5
W
3
W
3
W
3
W
3
W
3
W
2
WSW
2
SW
2
SW
2
SW
2
WSW
2
WNW
2
NW
3
NW
4
NNW
5
Pressure (hPa)
1015
1015
1015
1015
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1013
1013
Humidity (%)
49 %
39 %
33 %
31 %
33 %
34 %
37 %
44 %
53 %
63 %
69 %
72 %
74 %
78 %
82 %
84 %
84 %
84 %
80 %
68 %
55 %
44 %
37 %
31 %
Cloud cover (%)
2 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %

14-day weather forecast – Cupertino

14-day trend for Cupertino: The second week looks noticeably warmer and more pleasant. Lows can drop to around 11.8°C at night, with daytime highs up to 39°C.

Date
Jul 27
Jul 28
Jul 29
Jul 30
Jul 31
Aug 1
Aug 2
Aug 3
Aug 4
Aug 5
Aug 6
Aug 7
Aug 8
Aug 9
Cupertino July 27, 2026: Sunny
Cupertino July 28, 2026: Sunny
Cupertino July 29, 2026: Sunny
Cupertino July 30, 2026: Sunny
Cupertino July 31, 2026: Sunny
Cupertino August 1, 2026: Sunny
Cupertino August 2, 2026: Sunny
Cupertino August 3, 2026: Sunny
Cupertino August 4, 2026: Sunny
Cupertino August 5, 2026: Sunny
Cupertino August 6, 2026: Sunny
Cupertino August 7, 2026: Sunny
Cupertino August 8, 2026: Sunny
Cupertino August 9, 2026: Sunny
Temperature (°F)
Chance of rain (%)
4
3
2
1
1
1
1
1
1
0
0
2
2
3
Precipitation
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Wind max (mph)
11
9
9
9
7
9
6
3
5
6
5
5
6
4
Date Weather Min °F Max °F Sunrise Sunset Moonrise Moonset Moon phase
July 27, 2026 Cupertino July 27, 2026: Sunny Sunny 54 °F 89 °F 06:08 20:20 19:45 04:21 Full Moon (99 %)
July 28, 2026 Cupertino July 28, 2026: Sunny Sunny 53 °F 88 °F 06:09 20:19 20:19 05:22 Full Moon (100 %)
July 29, 2026 Cupertino July 29, 2026: Sunny Sunny 54 °F 90 °F 06:10 20:18 20:48 06:22 Full Moon (99 %)
July 30, 2026 Cupertino July 30, 2026: Sunny Sunny 55 °F 91 °F 06:11 20:18 21:13 07:22 Waning Moon (96 %)
July 31, 2026 Cupertino July 31, 2026: Sunny Sunny 56 °F 95 °F 06:11 20:17 21:36 08:21 Waning Moon (91 %)
August 1, 2026 Cupertino August 1, 2026: Sunny Sunny 57 °F 94 °F 06:12 20:16 21:57 09:20 Waning Moon (83 %)
August 2, 2026 Cupertino August 2, 2026: Sunny Sunny 57 °F 96 °F 06:13 20:15 22:19 10:18 Waning Moon (75 %)
August 3, 2026 Cupertino August 3, 2026: Sunny Sunny 61 °F 100 °F 06:14 20:14 22:43 11:18 Last Quarter (65 %)
August 4, 2026 Cupertino August 4, 2026: Sunny Sunny 62 °F 99 °F 06:15 20:13 23:09 12:20 Last Quarter (55 %)
August 5, 2026 Cupertino August 5, 2026: Sunny Sunny 64 °F 102 °F 06:16 20:12 23:40 13:25 Last Quarter (44 %)
August 6, 2026 Cupertino August 6, 2026: Sunny Sunny 64 °F 102 °F 06:16 20:11 Does not rise today 14:33 Last Quarter (34 %)
August 7, 2026 Cupertino August 7, 2026: Sunny Sunny 59 °F 95 °F 06:17 20:10 00:18 15:43 Waning Crescent (24 %)
August 8, 2026 Cupertino August 8, 2026: Sunny Sunny 58 °F 90 °F 06:18 20:08 01:05 16:52 Waning Crescent (16 %)
August 9, 2026 Cupertino August 9, 2026: Sunny Sunny 54 °F 89 °F 06:19 20:07 02:05 17:54 Waning Crescent (9 %)
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