Saratoga, California (West Valley College Area)

Current Weather Conditions, Maps, and Forecasts

Friday January 9, 2026; 9:25AM

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	47.7°F
Wind Chill	47.7°F
Heat Index	44.8°F
Dew Point	32.8°F
Humidity	56%
Barometer	30.439 inHg
Barometer Trend (3 hours)	0.028 inHg
Wind	0 mph
Rain Rate	0.00 in/h
Garage Temperature	53.5°F
UV Index	0.0
ET	0.00 in
Radiation	34 W/m²

Since Midnight

High Temperature Low Temperature	47.8°F at 09:22:49 40.7°F at 00:00:04
High Heat Index Low Wind Chill	44.9°F at 09:24:09 40.7°F at 00:00:04
High Humidity Low Humidity	74% at 00:00:04 55% at 09:17:19
High Dewpoint Low Dewpoint	33.5°F at 00:03:30 30.4°F at 06:56:35
High Barometer Low Barometer	30.440 inHg at 08:55:03 30.351 inHg at 00:13:02
Today's Rain	0.00 in
High Rain Rate	0.00 in/h at 00:00:04
High Wind	1 mph from 275° (W) at 01:27:36
Average Wind	0 mph
RMS Wind	0 mph
Vector Average Speed Vector Average Direction	0 mph N/A
High Garage Temperature Low Garage Temperature	56.0°F at 00:00:04 53.4°F at 08:41:01
High UV Low UV	0.0 at 00:00:04 0.0 at 00:00:04
High ET Low ET	0.00 in at 02:00:00 0.00 in at 00:05:00
High Radiation Low Radiation	35 W/m² at 09:21:55 0 W/m² at 00:00:04

Rain Year (1-Oct start)

Rain Year Total

12.53 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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High Temperature Outlook

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Low 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

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
Fri, 09 Jan 2026 08:55:02 -0800 (PST)

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

Friday
Becoming Sunny

Hi 57 °F
Precp 0%
Becoming
Sunny

Friday
Night
Areas of frost

Lo 37 °F
Precp 0%
Mostly
Clear

Saturday
Areas of frost

Hi 60 °F
Precp 0%
Partly
Sunny

Saturday
Night
Mostly Cloudy

Lo 39 °F
Precp 0%
Mostly
Cloudy

Sunday
Partly Sunny

Hi 62 °F
Precp 0%
Partly
Sunny

Sunday
Night
Mostly Clear

Lo 41 °F
Precp 0%
Mostly
Clear

Monday
Mostly Sunny

Hi 64 °F
Precp 0%
Mostly
Sunny

Monday
Night
Mostly Clear

Lo 42 °F
Precp 0%
Mostly
Clear

Friday	High of 57. Partly cloudy in the morning, with clouds clearing, to become sunny by the afternoon. Humidity 68% in the morning, lowering to 61% by the afternoon. Winds are a light air, N at 2-3 mph, gusting to a light breeze, 5-7 mph.
Friday Night	Areas of frost, with a low of 37. Clear in the evening, with a few clouds later making it mostly clear after midnight. Humidity 71% in the evening, rising to 76% after midnight. Winds will be a light air, NNE-E at 1-2 mph, gusting to a light breeze, 3-6 mph. Sustained winds stronger after midnight.
Saturday	Areas of frost, with a high of 60. Mostly sunny in the morning, with incoming clouds making it partly cloudy by the afternoon. Humidity 79% in the morning, lowering to 62% by the afternoon. Winds will be a light air, N-E at 2 mph, gusting to a light breeze, 5-7 mph.
Saturday Night	Low of 39. Partly cloudy through the night. Humidity 68% in the evening, rising to 73% after midnight. Winds will be a light air, N-ENE at 2 mph, gusting to a light breeze, 3-6 mph.
Sunday	High of 62. Mostly cloudy in the morning, with a bit of the overcast clearing, becoming partly cloudy by the afternoon. Humidity 73% in the morning, lowering to 52% by the afternoon. Winds will be a light air, N-NE at 2-3 mph, gusting to a light breeze, 6-7 mph.
Sunday Night	Low of 41. Partly cloudy in the evening, with some clouds clearing, making it mostly clear after midnight. Humidity 55% in the evening, rising to 73% after midnight. Winds will be a light air, N-NNE at 3 mph, gusting to a light breeze, 6 mph.
Monday	High of 64. Mostly sunny through the day. Humidity 70% in the morning, lowering to 68% by the afternoon. Winds will be a light air, NNE-NE at 2-3 mph, gusting to a light breeze, 6-7 mph.
Monday Night	Low of 42. Clear through the night. Humidity 58% in the evening, rising to 79% after midnight. Winds will be a light air, N-NE at 3 mph, gusting to a light breeze, 6 mph.
Tuesday	High of 66. Mostly sunny through the day. Humidity 76% in the morning, lowering to 74% by the afternoon. Winds will be a light air, NE at 2-3 mph, gusting to a light breeze, 6-7 mph.
Tuesday Night	Low of 46. Mostly clear in the evening, with incoming clouds making it partly cloudy after midnight. Humidity 63% in the evening, rising to 77% after midnight. Winds will be a light air, NE at 2-3 mph, gusting to a light breeze, 5-6 mph.
Wednesday	High of 68. Mostly sunny through the day. Humidity 76% in the morning, lowering to 71% by the afternoon. Winds will be a light air, NNE-NE at 2-3 mph, gusting to a light breeze, 6-7 mph.
Wednesday Night	Low of 46. Clear in the evening, with a few clouds later making it mostly clear after midnight. Humidity 60% in the evening, rising to 77% after midnight. Winds will be a light air, N-NE at 2-3 mph, gusting to a light breeze, 6 mph.
Thursday	High of 69. Mostly sunny through the day. Humidity 76% in the morning, lowering to 74% by the afternoon. Winds will be a light air, NE at 2-3 mph, gusting to a light breeze, 6 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: 3 days, 17 hours, 47 minutes
Server uptime: 3 days, 17 hours, 47 minutes
weewx v5.2.0

Sun
Start civil twilight:	06:52:37
Sunrise:	07:21:42
Transit:	12:15:15
Sunset:	17:09:00
End civil twilight:	17:38:05
Prev. Day Length:	09:46:16
Curr. Day Length:	09:47:18
Curr. Longer by:	00:01:02
Azimuth:	138.6°
Altitude:	18.5°
Right ascension:	291.1°
Declination:	-22.0°
Equinox:	03/20/26 07:45:53
Solstice:	06/21/26 01:24:31

Moon
Rise:	00:13:41
Transit:	05:13:06
Set:	11:03:41
Duration Seen:	10:50
Azimuth:	247.0°
Altitude:	17.8°
Right ascension:	186.6°
Declination:	-6.4°
New moon:	01/18/26 11:51:54
Full moon:	02/01/26 14:09:10
Phase:	Last quarter (59% 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.