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Weather in Boulder Creek, California
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  Cresta Vista, Boulder Creek, California 95006 USA
Lat: 37.140 Lon: -122.127 Alt: 695 feet
CWOP Site ID: C1844        Wunderground ID: KCABOULD3
Real-time weather data updated frequently.

Current Station Operational Status
10-23-2020 Installed air particle counters from PurpleAir and added widgets to the main page.
11-11-2020 Added PurpleAir Air Quality Index map of Boulder Creek to main page.
11-12-2020 Updated Space Weather page.
01-22-2021 Power outage took out the server's power supply despite it being on a UPS. Some pages will not be updated until repair is completed.
01-28-2021 Power supply replaced in weather server and back online. Repairing some webpages that gone off.
12-16-2021 Replaced failed air particle sensor display in webpage with new display.

Current Conditions

Chrome update of 76.0.3809.132 introduced a bug, which stretches horizontally all menus that contain left/right background images in their items. Let me know if this is an issue.
Santa Cruz County is an official Storm Ready Community! Check out Weather Warnings at Also check California EDIS and Santa Cruz County OES for the latest emergency alerts and bulletins.

Local Weather Warnings and Forecasts

      No Warnings

Santa Cruz Mountains-
901 PM PDT Tue Sep 27 2022

.REST OF TONIGHT...Mostly clear. Lows in the mid 50s to lower
60s. Northwest winds 5 to 10 mph. 

.WEDNESDAY...Sunny. Highs in the 70s to lower 80s. North winds
5 to 15 mph. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the 50s. Northwest
winds 5 to 15 mph. 

.THURSDAY...Sunny. Highs in the 70s to lower 80s. Northwest winds
5 to 10 mph. 

.THURSDAY NIGHT...Mostly clear. Lows in the 50s to mid 60s. North
winds 5 to 10 mph. 

.FRIDAY...Sunny. Highs in the mid 70s to lower 80s. 

.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows in the mid 50s to
lower 60s. Highs in the 70s. 

.SATURDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Lows in the mid 50s to lower 60s. 

.SUNDAY THROUGH TUESDAY...Mostly clear. Highs in the 70s to lower
80s. Lows in the mid 50s to lower 60s. 


Current Temperature, Humidity, Wind and Pressure


Current Solar Radiation and UV Index

* Mid-day drops is due to the sunlight passing through neighboring trees.

Air Particle Counters

Outdoors US EPA PM2.5 AQI
Indoors US EPA PM2.5 AQI

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Temperature Converter Utility - Convert between Fahrenheit and Celsius ....
Mobile Weather Report for your PDA and Smartphone!
Checkout This Hour's Detailed Weather Observations and Calculations ....

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Revised: 26 Dec 2010 00:28 -0800