Williams, CA Weather & Growing Conditions
Today
91°F
Sunny
Sunny, with a high near 91. Northeast wind 2 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Sunny | 2 to 6 mph NE | 0% |
| Tonight | 60°F | Partly Cloudy | 2 mph W | 0% |
| Sunday | 86°F | Partly Sunny | 1 to 5 mph ENE | 0% |
| Sunday Night | 60°F | Mostly Cloudy | 0 to 5 mph WNW | 0% |
| Monday | 90°F | Sunny | 1 to 7 mph ENE | 0% |
| Monday Night | 59°F | Mostly Clear | 0 to 7 mph E | 0% |
| Tuesday | 89°F | Sunny | 1 to 7 mph E | 0% |
| Tuesday Night | 60°F | Clear | 0 to 7 mph ENE | 0% |
| Wednesday | 90°F | Sunny | 1 to 5 mph NE | 0% |
| Wednesday Night | 63°F | Mostly Clear | 0 to 5 mph NNW | 0% |
| Thursday | 92°F | Sunny | 1 to 8 mph NNE | 0% |
| Thursday Night | 62°F | Mostly Clear | 2 to 8 mph SW | 1% |
| Friday | 88°F | Sunny | 2 to 8 mph SW | 1% |
| Friday Night | 59°F | Partly Cloudy | 2 to 8 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Williams, CA
Last spring frost
Feb 14
First fall frost
Dec 1
Growing season
293 days
Hardiness zone
9b
Explore more for Williams, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Colusa 2 Ssw, Ca (13.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.