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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.

03-09-2023 Rain bucket offline. Suspect snow messed up the tipping bucket.
03-11-2023 Rain bucket failed with crud buildup. Rain totals are invalid. Hoping to climb the roof and clear it out.
08-17-2023 Rain bucket has been throughly cleaned. Dirt had plugged up the drip hole.


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 Boulder-Creek.com. Also check California EDIS and Santa Cruz County OES for the latest emergency alerts and bulletins.

Local Weather Warnings and Forecasts


 
      No Warnings

CAZ512-190400-
Santa Cruz Mountains-
601 AM PDT Thu Sep 18 2025


.TODAY...Mostly cloudy. A chance of showers and isolated
thunderstorms. Highs in the 70s. South winds around 5 mph in the
morning...becoming light. 

.TONIGHT...Mostly cloudy. A chance of showers. Lows near 60.
Light winds...becoming southeast up to 5 mph after midnight. 

.FRIDAY...Mostly cloudy in the morning then becoming partly
cloudy. Patchy fog in the morning. A chance of showers. Highs in
the 70s. South winds around 5 mph in the morning...becoming
light. 

.FRIDAY NIGHT...Mostly clear. Lows in the 50s to mid 60s. Light
winds. 

.SATURDAY...Partly cloudy in the morning then becoming sunny.
Patchy fog in the morning. Highs in the 70s to lower 80s. Light
winds. 

.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s to mid 60s.

.SUNDAY AND SUNDAY NIGHT...Mostly clear. Highs in the 70s to mid
80s. Lows in the 50s to upper 60s. 

.MONDAY AND MONDAY NIGHT...Mostly clear. Highs in the 80s. Lows
in the 50s to upper 60s. 

.TUESDAY...Partly cloudy. A slight chance of thunderstorms. Highs
in the 70s to lower 80s. 

.TUESDAY NIGHT...Partly cloudy. A slight chance of showers. Lows
in the 50s to upper 60s. 

.WEDNESDAY...Partly cloudy in the morning then becoming sunny.
Highs in the 70s to lower 80s. 


$$





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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Revised: 26 Dec 2010 00:28 -0800
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