Saratoga, California (West Valley College Area)

Current Weather Conditions, Maps, and Forecasts

Wednesday December 31, 2025; 11:55PM

DISCLAIMER: This is a hobby page. As such, the reliability of this information is not guaranteed, or warrantied in any way, including, but not limited to, either for correctness or for fitness for any particular purpose. All risk for the use of this information is assumed by the readers and users of this page, including those who use the results extracted from either this page, or the scripts on which this page relies. Never base decisions that could affect life, property, livelihood, or anything else, on the information contained on this page, whether this information is locally derived or extracted from other locations on the Internet. In particular, the outputs and results shown for the air quality index (AQI) and the text forecasts are entirely the experimental work of an amateur hobbyist with no training in either weather forecasting or meterology. As such, these pages could very well contain or convey completely incorrect information (for example, the AQI reading is based on the last measurement of pollutants only, and is not an average over multiple hours!)

Current Conditions

Outside Temperature	50.4°F
Wind Chill	50.4°F
Heat Index	49.6°F
Dew Point	49.0°F
Humidity	95%
Barometer	29.892 inHg
Barometer Trend (3 hours)	-0.018 inHg
Wind	0 mph
Rain Rate	0.00 in/h
Garage Temperature	57.0°F
UV Index	0.0
ET	0.00 in
Radiation	0 W/m²

Since Midnight

High Temperature Low Temperature	52.2°F at 13:33:17 42.9°F at 00:00:06
High Heat Index Low Wind Chill	51.5°F at 13:33:17 42.9°F at 00:00:06
High Humidity Low Humidity	95% at 19:30:15 89% at 00:00:04
High Dewpoint Low Dewpoint	50.5°F at 13:33:17 39.9°F at 00:00:06
High Barometer Low Barometer	30.144 inHg at 00:00:04 29.891 inHg at 23:51:04
Today's Rain	0.09 in
High Rain Rate	0.00 in/h at 00:00:04
High Wind	2 mph from 330° (NNW) at 19:41:09
Average Wind	0 mph
RMS Wind	0 mph
Vector Average Speed Vector Average Direction	0 mph N/A
High Garage Temperature Low Garage Temperature	57.0°F at 19:40:01 54.4°F at 01:57:00
High UV Low UV	0.0 at 00:00:04 0.0 at 00:00:04
High ET Low ET	0.00 in at 11:00:00 0.00 in at 00:05:00
High Radiation Low Radiation	120 W/m² at 11:40:49 0 W/m² at 00:00:04

Rain Year (1-Oct start)

Rain Year Total

9.09 in

Local Radar Loop

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Regional Radar Loop

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Hazard Map (from the NWS)

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Current Weather Outlook

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Low Temperature Outlook

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High Temperature Outlook

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Santa Clara County Reservoirs

ALERT Reservoir Data

California Major Reservoirs

Major Reservoir Levels

PG&E Electrical Outage Map

California Rainfall Totals

NOAA/NWS CA/NV Rainfall totals

California Snowpack Levels

California Snowpack Information

CAL FIRE Incidents

CAL Fire Active Incidents

Weather Networks We Are On

Active Advisory

Continued minor coastal flood advisory COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST SUNDAY
To show the detailed information about this alert, click anywhere in this alert box

National Weather Service alerts map for your zone/county. The color key table only shows the keys for alerts that are active in your specified county or zone and only shows one alert for each spot on the map, even when more than one alert may be active at that spot. According to the NWS, when there are multiple alerts for a single spot, 'only the most significant threat to life or property is displayed on the map.'








				Coastal Flood Advisory

You may also obtain far more information about this weather alert by clicking on this link to
the National Weather Service Forecast Office's report for your forecast region.

(Alerts are from the National Weather Service's CAP v1.2 JSON Feed)

Weather Forecast

Forecast Created by Experimental Software Written By an Amateur With No Guarantee or Warranty or Promise of Accuracy Provided or Implied! Use at Your Own Risk! You Assume All Risk and Liability If You Use This Information in Any Way, For Any Purpose Whatsoever! See the Disclaimer Given Above!

raw forecast data generated on
Wed, 31 Dec 2025 23:21:03 -0800 (PST)

Click here for an official National Weather Service forecast! NWS Disclaimer

Wednesday
Night
Moderate rain certain

Lo 50 °F
Precp 92%
Rain

New
Years

Hi 60 °F
Precp 89%
Rain

Thursday
Night
Light rain likely

Lo 50 °F
Precp 58%
Rain
Likely

Friday
Light rain likely

Hi 60 °F
Precp 38%
Rain
Likely

Friday
Night
Moderate rain certain

Lo 53 °F
Precp 91%
Rain

Saturday
Light rain showers certain, with a slight chance of thunderstorms

Hi 60 °F
Precp 92%
Rain
Showers

Saturday
Night
Moderate rain certain

Lo 51 °F
Precp 89%
Rain

Sunday
Light rain certain

Hi 59 °F
Precp 86%
Rain

Wednesday Night	Moderate rain certain, with a low of 50. Cloudy through the night. Expecting approximately 0.23 inches of rain. Chance of precipitation is 92%. Humidity 100% in the evening, lowering to 96% after midnight. Winds are a gentle breeze, ESE-S at 6-10 mph, gusting to a fresh breeze, 16-20 mph.
New Years Day	Light rain certain, with a high of 60. Cloudy in the morning, with a bit of the cloudiness clearing, becoming mostly cloudy by the afternoon. Expecting approximately 0.32 inches of rain. Chance of precipitation will be 89%. Humidity 97% in the morning, lowering to 93% by the afternoon. Winds will be a moderate breeze, SE-S at 7-14 mph, gusting to a fresh breeze, 17-24 mph.
Thursday Night	Light rain likely, with a low of 50. Mostly cloudy through the night. Expecting approximately 0.05 inches of rain, mostly in the evening. Chance of precipitation will be 58%. Humidity 96% through the night. Winds will be a gentle breeze, SSE-S at 7-9 mph, gusting to a fresh breeze, 17-21 mph.
Friday	Light rain likely, with a high of 60. Mostly cloudy through the day. Chance of precipitation will be 38%. Humidity 100% in the morning, lowering to 77% by the afternoon. Winds will be a moderate breeze, SE-S at 8-13 mph, gusting to a strong breeze (small-craft advisory!), 18-26 mph.
Friday Night	Moderate rain certain, with a low of 53. Mostly cloudy in the evening, with full overcast conditions arriving, becoming cloudy after midnight. Expecting approximately 0.5 inches of rain, mostly after midnight. Chance of precipitation will be 91%. Humidity 89% in the evening, rising to 96% after midnight. Winds will be a fresh breeze, SE-S at 13-20 mph, gusting to a near gale (small-craft advisory!), 30-38 mph.
Saturday	Light rain showers certain, with a slight chance of thunderstorms, with a high of 60. Cloudy in the morning, with a bit of the cloudiness clearing, becoming mostly cloudy by the afternoon. Expecting approximately 0.32 inches of rain. Chance of precipitation will be 92%. Humidity 100% in the morning, lowering to 94% by the afternoon. Winds will be a fresh breeze, S at 14-20 mph, gusting to a strong breeze (small-craft advisory!), 29-30 mph.
Saturday Night	Moderate rain certain, with a low of 51. Mostly cloudy through the night. Chance of precipitation will be 89%. Humidity 86% in the evening, rising to 93% after midnight. Winds will be a moderate breeze, S at 13 mph, gusting to a strong breeze (small-craft advisory!), 26 mph.
Sunday	Light rain certain, with a high of 59. Cloudy in the morning, with a bit of the cloudiness clearing, becoming mostly cloudy by the afternoon. Chance of precipitation will be 86%. Humidity 97% through the day. Winds will be a gentle breeze, SSE-S at 8-10 mph, gusting to a fresh breeze, 20-21 mph.
Sunday Night	Light rain likely, with a low of 48. Mostly cloudy through the night. Chance of precipitation will be 81%. Humidity 86% in the evening, rising to 92% after midnight. Winds will be a gentle breeze, S at 9 mph, gusting to a fresh breeze, 18-20 mph.
Monday	Light rain likely, with a high of 57. Mostly cloudy through the day. Chance of precipitation will be 71%. Humidity 97% in the morning, rising to 100% by the afternoon. Winds will be a gentle breeze, SSE-S at 6-8 mph, gusting to a moderate breeze, 15-16 mph.
Monday Night	Light rain likely, with a low of 46. Mostly cloudy through the night. Chance of precipitation will be 67%. Humidity 86% in the evening, rising to 97% after midnight. Winds will be a light breeze, SSE-S at 6 mph, gusting to a moderate breeze, 12-14 mph.
Tuesday	A chance of light rain, with a high of 59. Mostly cloudy through the day. Chance of precipitation will be 39%. Humidity 100% through the day. Winds will be a light air, ESE at 3 mph, gusting to a gentle breeze, 9 mph.
Tuesday Night	A chance of light rain, with a low of 44. Partly cloudy through the night. Chance of precipitation will be 28%. Humidity 80% in the evening, rising to 97% after midnight. Winds will be a light breeze, ESE-S at 3-5 mph, gusting to a gentle breeze, 8-9 mph.
Wednesday	A chance of light rain, with a high of 57. Partly cloudy through the day. Chance of precipitation will be 29%. Humidity 97% in the morning, lowering to 96% by the afternoon. Winds will be a light air, SSE at 3 mph, gusting to a gentle breeze, 6-9 mph.

The above Experimental Forecast used the National Weather Service's NDFD XML Feed
for Saratoga, CA
(37.263°N, 122.003°W, NWS Zone CAZ513, NWS County CAC085)

Location
Latitude:	37° 15.75' N
Longitude:	122° 00.20' W
Altitude:	376 feet

This station uses a Vantage Pro2, controlled by 'WeeWX', an experimental weather software system written in Python. Weewx was designed to be simple, fast, and easy to understand by leveraging modern software concepts.

RSS feed

Smartphone formatted

WeeWX uptime: 0 days, 21 hours, 36 minutes
Server uptime: 0 days, 21 hours, 36 minutes
weewx v5.2.0

Sun
Start civil twilight:	06:52:02
Sunrise:	07:21:31
Transit:	12:11:16
Sunset:	17:01:08
End civil twilight:	17:30:36
Prev. Day Length:	09:39:03
Curr. Day Length:	09:39:37
Curr. Longer by:	00:00:34
Azimuth:	344.9°
Altitude:	-75.3°
Right ascension:	281.9°
Declination:	-23.0°
Equinox:	03/20/26 07:45:53
Solstice:	06/21/26 01:24:31

Moon
Rise:	14:09:01
Transit:	21:56:24
Set:	04:34:19
Duration Seen:	14:25
Azimuth:	255.4°
Altitude:	63.7°
Right ascension:	68.9°
Declination:	27.0°
Full moon:	01/03/26 02:02:50
New moon:	01/18/26 11:51:54
Phase:	Waxing gibbous (94% full)

Monthly summary:
Yearly summary:

This system is powered by the open source WeeWX package, authored by Tom Keffer.

This system uses the open source Purple Air extensions to WeeWX package by Kenneth Baker to obtain the raw air pollutant values.

Thanks to JaneAndJohn.org for PHP-based RSS weather-feed code used in a prior iteration of this site.

Thanks to Ken True at Saratoga-Weather.org for pointers to good warning scripts, used in a prior iteration, and for being a great overall resource for scripting weather websites. Also, the idea to ignore certificate errors from the NOAA/NWS website comes from these scripts.

Thanks to Ken True at Saratoga-Weather.org and Mike Chaliss for their alerts script from which we leverage the array mapping alert event name to alert event background color, and a clever way to handle events that aren't in that mapping.

Thanks to Tom at carterlake.org for a script that caused me to want to learn how to obtain the raw data of a National Weather Service forecast, that triggered my building my own set of scripts. He has also created another great overall resource for scripting weather websites.

The raw data on which the forecasts are built, and the icons for these, come from the National Weather Service.

This system utilizes the xmlize utility written by Hans Anderson.

The URL used to get the alerts, and the idea to use cURL to get them (and any other needed JSON/XML data), comes from the "NWS Alerts" PHP package by Rick "Curly" at the WXForum web site.

The idea to use and how to properly invoke the xmlize library to extract information from the NWS comes from PXWeather by Jonathan M. Abbett.

The algorithms used to either adjust the Purpleair sensor PM2.5 pollutant concentrations or to convert from PM2.5 pollutant concentrations to an AQI value come from multiple sources.

If you want a copy of the current code that produces this generated-forecast information, and performs AQI calculations, as well as more open source license information for this package and the ones that it uses or has learned from, click here.

If you want to see the clumsy way I integrate WeeWX and PHP, click here.

Severity Minor	Urgency Expected	Certainty Likely
Alert Effective Wed, 31 Dec 12:30 pm (PST)	Event Onset Wed, 31 Dec 12:30 pm (PST)	Alert Updated by NWS On Wed, 31 Dec 12:30 pm (PST)
Alert Expires Thu, 01 Jan 5:00 am (PST)	Event Ends Sun, 04 Jan 2:00 pm (PST)
Description
* WHAT...Up to 2.2 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...San Francisco Bay and San Pablo Bay shoreline, Monterey Bay shoreline, and the Pacific Coast. * WHEN...Until 2 PM PST Sunday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide is expected to be: 2.0 ft above normal (7.8 ft MLLW) at 8:41 AM Thursday 1/1 2.2 ft above normal (8.0 ft MLLW) at 9:34 AM Friday 1/2 2.2 ft above normal (8.0 ft MLLW) at 10:26 AM Saturday 1/3 1.8 ft above normal (7.6 ft MLLW) at 11:18 AM Sunday 1/4 These predictions include up to 1.0 feet of storm surge that will enhance the astronomical tide and flooding threat. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.
*According to the National Weather Service, your response to this alert should be to attend to information sources as described in this instruction.*
Instruction
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

Saratoga, California (West Valley College Area)

Current Weather Conditions, Maps, and Forecasts

Wednesday December 31, 2025; 11:55PM

Active Advisory

COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST SUNDAY

You may also obtain far more information about this weather alert by clicking on this link to the National Weather Service Forecast Office's report for your forecast region.

(Alerts are from the National Weather Service's CAP v1.2 JSON Feed)

Weather Forecast

You may also obtain far more information about this weather alert by clicking on this link to
the National Weather Service Forecast Office's report for your forecast region.