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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.

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 Oct 26 2021

.REST OF TONIGHT...Partly cloudy. Patchy fog after midnight. Lows
in the lower 50s. Northwest winds up to 5 mph increasing to north
10 to 15 mph after midnight. 

.WEDNESDAY...Partly cloudy in the morning then becoming sunny.
Patchy fog in the morning. Highs in the 60s to lower 70s. North
winds 10 to 20 mph. 

.WEDNESDAY NIGHT...Mostly clear. Lows in the lower to mid 50s.
North winds 10 to 20 mph. 

.THURSDAY...Sunny. Highs in the upper 60s to mid 70s. North winds
10 to 20 mph. 

.THURSDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Lows in the 50s. North winds 5 to 10 mph. 

.FRIDAY...Mostly cloudy in the morning then becoming sunny. Highs
in the mid 60s to lower 70s. 

.FRIDAY NIGHT THROUGH TUESDAY...Mostly cloudy. Lows in the upper
40s to mid 50s. Highs in the upper 50s to lower 70s. 


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 ....
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Checkout This Hour's Detailed Weather Observations and Calculations ....

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Revised: 26 Dec 2010 00:28 -0800