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Palo Alto Weather Highs and LowsWeather • Air Quality • Seismic Activity PaloAltoWeather.com |
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Palo Alto Weather Highs and LowsWeather • Air Quality • Seismic Activity PaloAltoWeather.com |
| Today | Week | Month | Year | Rain Year | Since 2019 | ||
|---|---|---|---|---|---|---|---|
| Temperature | °F | 54.7 02:37:11 PM 41.1 12:45:35 AM |
54.7 02:37:11 PM (Sunday) 41.1 12:45:35 AM (Sunday) |
80.3 11/09/2025 02:56:22 PM 37.2 11/26/2025 06:33:59 AM |
95.7 08/30/2025 04:43:12 PM 29.8 01/21/2025 07:13:18 AM |
86.4 10/06/2025 04:30:30 PM 37.2 11/26/2025 06:33:59 AM |
107.3 09/05/2022 03:38:37 PM 28.7 01/02/2022 07:01:48 AM |
| Dew Point | °F | 47.1 02:22:39 PM 39.5 12:45:35 AM |
47.1 02:22:39 PM (Sunday) 39.5 12:45:35 AM (Sunday) |
65.1 11/10/2025 12:46:16 PM 35.9 11/26/2025 06:33:59 AM |
67.2 09/14/2025 03:39:37 PM 21.8 02/10/2025 02:33:59 PM |
65.1 11/10/2025 12:46:16 PM 35.9 11/26/2025 06:33:59 AM |
73.8 08/16/2020 10:35:00 AM 7.0 10/26/2020 02:15:00 PM |
| Barometer | inHg | 30.113 09:16:00 AM 30.032 03:49:01 PM |
30.113 09:16:00 AM (Sunday) 30.032 03:49:01 PM (Sunday) |
30.306 11/24/2025 10:14:00 AM 29.701 11/17/2025 12:34:58 AM |
30.561 01/21/2025 10:50:00 AM 29.510 02/13/2025 05:52:59 AM |
30.306 11/24/2025 10:14:00 AM 29.561 10/13/2025 03:41:01 PM |
30.609 01/05/2020 10:45:00 AM 29.176 03/21/2023 01:34:00 PM |
| AQI | 82 07:11:39 PM 52 12:03:14 PM |
82 07:11:39 PM (Sunday) 52 12:03:14 PM (Sunday) |
93 11/12/2025 12:23:15 PM 0 11/13/2025 11:38:44 AM |
810 08/26/2025 12:24:47 PM 0 02/13/2025 01:47:42 AM |
174 10/18/2025 08:46:13 PM 0 10/02/2025 08:21:06 AM |
311 08/26/2025 12:24:47 PM 0 01/14/2020 01:20:00 AM |
|
| PM 2.5 | µg/m³ | 26 07:11:39 PM 10 12:03:14 PM |
26 07:11:39 PM (Sunday) 10 12:03:14 PM (Sunday) |
39 11/12/2025 12:23:15 PM 0 11/13/2025 11:38:44 AM |
737 08/26/2025 12:24:47 PM 0 02/13/2025 01:47:42 AM |
89 10/18/2025 08:46:13 PM 0 10/02/2025 08:21:06 AM |
737 08/26/2025 12:24:47 PM 0 01/14/2020 01:20:00 AM |
| UV Index |
2.5 01:06:18 PM 0.0 12:00:04 AM |
2.5 01:06:18 PM (Sunday) 0.0 12:00:04 AM (Sunday) |
4.9 11/04/2025 12:16:40 PM 0.0 11/01/2025 12:00:02 AM |
11.9 07/22/2025 12:49:07 PM 0.0 01/01/2025 12:00:01 AM |
7.9 10/01/2025 01:08:50 PM 0.0 10/01/2025 12:00:02 AM |
12.5 06/05/2022 01:24:25 PM 0.0 09/05/2020 06:30:00 PM |
|
| Radiation | W/m² |
445 01:06:08 PM 0 12:00:04 AM |
445 01:06:08 PM (Sunday) 0 12:00:04 AM (Sunday) |
652 11/16/2025 11:06:58 AM 0 11/01/2025 12:00:02 AM |
1042 03/17/2025 01:53:33 PM 0 01/01/2025 12:00:01 AM |
1013 10/03/2025 12:56:54 PM 0 10/01/2025 12:00:02 AM |
1420 06/17/2022 11:45:40 AM 0 09/05/2020 07:35:00 PM |
| CO2 | ppm | 636 12:03:04 PM 396 11:43:32 AM |
636 12:03:04 PM (Sunday) 396 11:43:32 AM (Sunday) |
636 11/30/2025 12:03:04 PM 373 11/20/2025 04:31:07 PM |
636 11/30/2025 12:03:04 PM 373 11/20/2025 04:31:07 PM |
636 11/30/2025 12:03:04 PM 373 11/20/2025 04:31:07 PM |
636 11/30/2025 12:03:04 PM 373 11/20/2025 04:31:07 PM |
| Rain | in | 0.00 | 0.00 | 2.74 | 9.64 | 3.76 | 84.45 |
| Rain Rate | in/h |
0.00 12:00:04 AM |
0.00 12:00:04 AM (Sunday) |
14.77 11/17/2025 01:04:48 AM |
15.16 05/12/2025 07:48:31 AM |
14.77 11/17/2025 01:04:48 AM |
15.16 03/30/2024 07:08:21 PM |
| Wind Max |
mph ° |
8 30 10:01:48 AM |
8 30 10:01:48 AM (Sunday) |
20 176 11/05/2025 02:06:05 AM |
34 248 03/12/2025 03:10:00 PM |
20 176 11/05/2025 02:06:05 AM |
36 205 02/04/2024 03:30:00 PM |
| Wind Average | mph | 1 | 1 | 1 | 2 | 1 | 2 |
| Wind RMS | mph | 1 | 1 | 2 | 3 | 2 | 3 |
|
Vector Average Average Direction |
mph ° |
1 6 |
1 6 |
0 87 |
1 12 |
0 23 |
1 353 |
| Humidity | % | 95 12:30:39 AM 74 02:28:55 PM |
95 12:30:39 AM (Sunday) 74 02:28:55 PM (Sunday) |
97 11/21/2025 08:43:32 AM 46 11/03/2025 03:01:17 PM |
97 11/21/2025 08:43:32 AM 20 05/05/2025 03:14:06 PM |
97 11/21/2025 08:43:32 AM 29 10/06/2025 02:13:27 PM |
100 02/16/2019 02:50:00 AM 8 10/26/2020 02:00:00 PM |
| Heat Index | °F | 53.3 02:37:11 PM |
53.3 02:37:11 PM (Sunday) |
81.2 11/09/2025 03:07:14 PM |
94.4 09/23/2025 02:05:17 PM |
85.0 10/07/2025 01:16:11 PM |
112.5 08/16/2020 02:05:00 PM |
| Wind Chill | °F | 41.1 12:45:35 AM |
41.1 12:45:35 AM (Sunday) |
37.2 11/26/2025 06:33:59 AM |
29.8 01/21/2025 07:13:18 AM |
37.2 11/26/2025 06:33:59 AM |
25.7 01/31/2023 06:06:21 AM |
| ET | in | 0.01 02:00:00 PM 0.00 12:05:00 AM |
0.01 02:00:00 PM (Sunday) 0.00 12:05:00 AM (Sunday) |
0.01 11/02/2025 12:00:00 PM 0.00 11/01/2025 12:05:00 AM |
0.03 05/30/2025 02:00:00 PM 0.00 01/01/2025 12:05:00 AM |
0.02 10/06/2025 02:00:00 PM 0.00 10/01/2025 12:05:00 AM |
0.03 06/16/2021 02:00:00 PM 0.00 09/05/2020 12:20:00 PM |
PaloAltoWeather.com ©2019-2025 by John A Kline.
Contact: weatherman@paloaltoweather.com
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