Boulder Creek, CA Weather & Growing Conditions
Today
93°F
Slight Chance Drizzle then Sunny
A slight chance of drizzle before 9am. Sunny. High near 93, with temperatures falling to around 88 in the afternoon. South southeast wind around 2 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 93°F | Slight Chance Drizzle then Sunny | 2 mph SSE | 15% |
| Tonight | 54°F | Mostly Clear | 2 mph SSE | 0% |
| Wednesday | 92°F | Sunny | 2 mph S | 0% |
| Wednesday Night | 55°F | Mostly Clear | 2 mph SW | 0% |
| Thursday | 93°F | Sunny | 2 mph W | 0% |
| Thursday Night | 58°F | Mostly Clear | 2 mph NW | 0% |
| Friday | 97°F | Sunny | 0 to 3 mph NW | 0% |
| Friday Night | 60°F | Mostly Clear | 0 to 3 mph NW | 0% |
| Saturday | 93°F | Sunny | 0 to 3 mph WNW | 0% |
| Saturday Night | 58°F | Mostly Clear | 0 to 3 mph NW | 0% |
| Sunday | 89°F | Sunny | 0 to 5 mph WNW | 0% |
| Sunday Night | 54°F | Mostly Clear then Patchy Fog | 0 to 5 mph WSW | 0% |
| Monday | 83°F | Sunny | 0 to 3 mph SW | 0% |
| Monday Night | 53°F | Mostly Clear | 0 to 3 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Boulder Creek, CA
Last spring frost
Mar 25
First fall frost
Nov 11
Growing season
231 days
Hardiness zone
9b
Explore more for Boulder Creek, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Ben Lomond #4, Ca (7.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.