Grimes, CA Weather & Growing Conditions
Overnight
46°F
Mostly Clear
Mostly clear, with a low around 46. Northwest wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Mostly Clear | 8 mph NW | 0% |
| Wednesday | 68°F | Sunny | 2 to 10 mph NW | 2% |
| Wednesday Night | 46°F | Patchy Fog | 0 to 5 mph WNW | 2% |
| Thursday | 72°F | Sunny | 5 to 9 mph NNW | 0% |
| Thursday Night | 44°F | Mostly Clear | 1 to 5 mph NNW | 0% |
| Friday | 71°F | Sunny | 0 to 3 mph NNW | 0% |
| Friday Night | 45°F | Mostly Clear | 1 mph NE | 0% |
| Saturday | 72°F | Sunny | 2 mph NW | 0% |
| Saturday Night | 45°F | Mostly Clear | 2 mph N | 0% |
| Sunday | 73°F | Sunny | 1 to 5 mph ENE | 0% |
| Sunday Night | 46°F | Partly Cloudy | 1 mph ENE | 0% |
| Monday | 71°F | Mostly Sunny | 2 mph NW | 1% |
| Monday Night | 46°F | Partly Cloudy | 1 mph N | 1% |
| Tuesday | 71°F | Sunny | 3 mph NNW | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Grimes, CA
Last spring frost
Feb 11
First fall frost
Nov 30
Growing season
289 days
Hardiness zone
9b
Explore more for Grimes, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Marysville Yuba Co Ap, Ca (14.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.