Saratoga, California (West Valley College Area)

Current Weather Conditions, Maps, and Forecasts

Thursday March 19, 2026; 2:20AM

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

Realtime Single-sample US-EPA Air Quality Index 8 - GOOD (Using 2024 US-EPA PM2.5 conversion) Air quality is considered satisfactory, and air pollution poses little or no risk.
Outside Temperature	61.4°F
Wind Chill	61.4°F
Heat Index	61.0°F
Dew Point	55.5°F
Humidity	81%
Barometer	30.083 inHg
Barometer Trend (3 hours)	0.006 inHg
Wind	0 mph
Rain Rate	0.00 in/h
Garage Temperature	76.0°F
UV Index	0.0
Radiation	0 W/m²
Using 2024 US-EPA PM2.5 conversion
Latest PM2.5 [AQI]	1.4 μg/m³ [8]

Since Midnight

High Temperature Low Temperature	64.5°F at 00:01:30 60.3°F at 01:46:45
High Heat Index Low Wind Chill	64.0°F at 00:01:30 60.3°F at 01:46:45
High Humidity Low Humidity	82% at 02:02:25 71% at 00:01:59
High Dewpoint Low Dewpoint	56.0°F at 02:15:16 54.1°F at 01:46:45
High Barometer Low Barometer	30.095 inHg at 01:04:00 30.077 inHg at 00:00:03
Today's Rain	0.00 in
High Rain Rate	0.00 in/h at 00:00:03
High Wind	0 mph
Average Wind	0 mph
RMS Wind	0 mph
Vector Average Speed Vector Average Direction	0 mph N/A
High Garage Temperature Low Garage Temperature	78.4°F at 00:00:03 76.0°F at 02:11:59
High UV Low UV	0.0 at 00:00:03 0.0 at 00:00:03
High Radiation Low Radiation	0 W/m² at 00:00:03 0 W/m² at 00:00:03

Rain Year (1-Oct start)

Rain Year Total

17.15 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 moderate heat advisory HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY
To show the detailed information about this alert, click anywhere in this alert box

Severity Moderate	Urgency Expected	Certainty Likely
Alert Effective Wed, 18 Mar 9:18 pm (PDT)	Event Onset Wed, 18 Mar 9:18 pm (PDT)	Alert Updated by NWS On Wed, 18 Mar 9:18 pm (PDT)
Alert Expires Thu, 19 Mar 5:30 am (PDT)	Event Ends Fri, 20 Mar 8:00 pm (PDT)
Description
* WHAT...High temperatures in the low to mid 90s across the interior and 80s along the coastline. * WHERE...The Bay Area and Central Coast. * WHEN...Until 8 PM PDT Friday. * IMPACTS...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health systems and in heat-sensitive industries. Hot conditions can cause heat illnesses. * ADDITIONAL DETAILS...Much above normal temperatures in the upper 80s to mid 90s are expected through the remainder of the week across the Bay Area and Central Coast. Portions of the interior Central Coast may reach the upper 90s starting mid to late week. Overnight lows in the upper 50s to low 60s will offer some relief to the lower elevations but will offer minimal relief within the higher elevations. Conditions will be much above normal along the coast this week but coastal residents may experience more relief overnight than those across the interior. The risk of heat related illnesses will increase with each additional day of heating from this event.
*According to the National Weather Service, your response to this alert should be to execute a pre-planned activity identified in this instruction.*
Instruction
Hydration is a critical piece to surviving the heat. Drink water, and if possible, take water to those who are vulnerable. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to the early morning or evening. Take action when you experience symptoms of heat exhaustion and/or heat stroke. Beat the heat and check the backseat! Do not leave young children or pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

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.'








				Heat 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
Thu, 19 Mar 2026 02:20:01 -0700 (PDT)

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

Wednesday
Night
Clear

Lo 59 °F
Precp 0%
Clear

Thursday
Sunny

Hi 93 °F
Precp 0%
Sunny

Thursday
Night
Clear

Lo 60 °F
Precp 0%
Clear

Friday
Sunny

Hi 93 °F
Precp 0%
Sunny

Friday
Night
Partly Cloudy

Lo 59 °F
Precp 0%
Partly
Cloudy

Saturday
Partly Sunny

Hi 84 °F
Precp 0%
Partly
Sunny

Saturday
Night
Mostly Clear

Lo 53 °F
Precp 0%
Mostly
Clear

Sunday
Mostly Sunny

Hi 82 °F
Precp 0%
Mostly
Sunny

Wednesday Night	Low of 59. Clear through the night. Humidity 60% in the evening, lowering to 57% after midnight. Winds are a light air, WNW-NNW at 1 mph, gusting to 2 mph.
Thursday	High of 93. Sunny through the day. Humidity 60% in the morning, lowering to 26% by the afternoon. Winds will be a light breeze, NNW-N at 1-6 mph, gusting to a gentle breeze, 2-10 mph. Winds stronger in the afternoon.
Thursday Night	Low of 60. Clear through the night. Humidity 31% in the evening, rising to 58% after midnight. Winds will be a light breeze, WNW-NNW at 1-5 mph, gusting to a gentle breeze, 2-8 mph. Winds weaker in the evening.
Friday	High of 93. Sunny through the day. Humidity 56% in the morning, lowering to 25% by the afternoon. Winds will be a light breeze, NNW at 2-5 mph, gusting to a gentle breeze, 2-9 mph. Winds stronger in the afternoon.
Friday Night	Low of 59. Clear in the evening, with incoming clouds making it partly cloudy after midnight. Humidity 27% in the evening, rising to 65% after midnight. Winds will be a light breeze, W-NW at 1-6 mph, gusting to a gentle breeze, 2-10 mph. Winds weaker in the evening.
Saturday	High of 84. Partly cloudy through the day. Humidity 66% in the morning, lowering to 35% by the afternoon. Winds will be a gentle breeze, NW at 1-8 mph, gusting to a moderate breeze, 2-15 mph. Winds stronger in the afternoon.
Saturday Night	Low of 53. Partly cloudy through the night. Humidity 37% in the evening, rising to 56% after midnight. Winds will be a gentle breeze, NW at 2-9 mph, gusting to a moderate breeze, 7-16 mph. Winds weaker in the evening.
Sunday	High of 82. Sunny in the morning, with a few clouds later making it mostly sunny by the afternoon. Humidity 67% in the morning, lowering to 47% by the afternoon. Winds will be a light breeze, NW-NNW at 2-5 mph, gusting to a gentle breeze, 3-10 mph. Winds stronger in the afternoon.
Sunday Night	Low of 50. Clear through the night. Humidity 31% in the evening, rising to 67% after midnight. Winds will be a gentle breeze, NW at 2-8 mph, gusting to a moderate breeze, 5-14 mph. Winds weaker in the evening.
Monday	High of 80. Mostly sunny through the day. Humidity 76% in the morning, lowering to 52% by the afternoon. Winds will be a light air, NW at 1-3 mph, gusting to a light breeze, 2-7 mph. Winds stronger in the afternoon.
Monday Night	Low of 51. Partly cloudy through the night. Chance of precipitation will be 1%. Humidity 34% in the evening, rising to 59% after midnight. Winds will be a gentle breeze, NW-NNW at 2-8 mph, gusting to a moderate breeze, 6-14 mph. Winds weaker in the evening.
Tuesday	High of 80. Partly cloudy in the morning, with some clouds clearing, making it mostly sunny by the afternoon. Chance of precipitation will be 3%. Humidity 61% in the morning, lowering to 45% by the afternoon. Winds will be a light breeze, NW-NNW at 2-5 mph, gusting to a gentle breeze, 5-9 mph. Winds stronger in the afternoon.
Tuesday Night	Low of 48. Mostly clear through the night. Chance of precipitation will be 5%. Humidity 35% in the evening, rising to 59% after midnight. Winds will be a gentle breeze, NW at 3-8 mph, gusting to a moderate breeze, 9-15 mph. Sustained winds stronger in the evening.
Wednesday	High of 75. Mostly sunny through the day. Chance of precipitation will be 3%. Humidity 68% in the morning, lowering to 50% by the afternoon. Winds will be a gentle breeze, NW at 3-8 mph, gusting to a moderate breeze, 9-16 mph. Sustained winds stronger in the afternoon.

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: 2 days, 0 hours, 1 minute
Server uptime: 2 days, 0 hours, 1 minute
weewx v5.2.0

Sun
Start civil twilight:	06:46:03
Sunrise:	07:12:28
Transit:	13:15:38
Sunset:	19:19:24
End civil twilight:	19:45:52
Prev. Day Length:	12:04:31
Curr. Day Length:	12:06:56
Curr. Longer by:	00:02:25
Azimuth:	25.7°
Altitude:	-50.3°
Right ascension:	358.9°
Declination:	-0.5°
Equinox:	03/20/26 07:45:53
Solstice:	06/21/26 01:24:31

Moon
Rise:	07:24:17
Transit:	13:50:20
Set:	20:28:01
Duration Seen:	13:04
Azimuth:	19.5°
Altitude:	-48.4°
Right ascension:	2.2°
Declination:	2.6°
Full moon:	04/01/26 19:11:54
New moon:	04/17/26 04:51:44
Phase:	New (0% 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 to see the clumsy way I integrate WeeWX and PHP, click here.

Saratoga, California (West Valley College Area)

Current Weather Conditions, Maps, and Forecasts

Thursday March 19, 2026; 2:20AM

Active Advisory

HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY

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.