Lafayette, CA Weather & Growing Conditions
Overnight
56°F
Mostly Clear
Mostly clear, with a low around 56. Southwest wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Mostly Clear | 9 mph SW | 0% |
| Saturday | 82°F | Sunny | 5 to 8 mph SW | 0% |
| Saturday Night | 56°F | Partly Cloudy | 9 mph SW | 0% |
| Sunday | 72°F | Mostly Cloudy | 9 mph SW | 3% |
| Sunday Night | 56°F | Mostly Cloudy | 10 mph SW | 3% |
| Monday | 74°F | Mostly Sunny | 10 mph SW | 0% |
| Monday Night | 55°F | Partly Cloudy | 10 mph SW | 0% |
| Tuesday | 77°F | Sunny | 8 mph SW | 0% |
| Tuesday Night | 55°F | Mostly Clear | 5 to 8 mph SW | 0% |
| Wednesday | 89°F | Sunny | 5 mph WSW | 0% |
| Wednesday Night | 60°F | Mostly Clear | 5 mph SW | 0% |
| Thursday | 90°F | Sunny | 2 to 7 mph WSW | 0% |
| Thursday Night | 59°F | Mostly Clear | 8 mph SW | 0% |
| Friday | 81°F | Sunny | 8 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lafayette, CA
Last spring frost
Jan 7
First fall frost
Dec 19
Growing season
346 days
Hardiness zone
9b
Explore more for Lafayette, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Concord Wwtp, Ca (6.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.