Grayson, CA Weather & Growing Conditions
Overnight
50°F
Partly Cloudy
Partly cloudy. Low around 50, with temperatures rising to around 52 overnight. West northwest wind around 12 mph, with gusts as high as 22 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Partly Cloudy | 12 mph WNW | 0% |
| Wednesday | 69°F | Sunny | 7 to 14 mph NW | 1% |
| Wednesday Night | 51°F | Mostly Cloudy | 2 to 6 mph WSW | 1% |
| Thursday | 72°F | Mostly Sunny | 3 to 12 mph W | 0% |
| Thursday Night | 49°F | Clear | 1 to 5 mph W | 0% |
| Friday | 73°F | Sunny | 1 to 5 mph NW | 0% |
| Friday Night | 50°F | Mostly Clear | 0 to 3 mph NNW | 0% |
| Saturday | 75°F | Sunny | 0 to 3 mph NE | 0% |
| Saturday Night | 50°F | Mostly Clear | 1 mph NW | 0% |
| Sunday | 75°F | Sunny | 1 to 5 mph NW | 0% |
| Sunday Night | 52°F | Partly Cloudy | 2 mph NNW | 0% |
| Monday | 74°F | Mostly Sunny | 0 to 3 mph NNW | 0% |
| Monday Night | 51°F | Partly Cloudy | 3 mph NW | 1% |
| Tuesday | 74°F | Sunny | 2 mph NW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Grayson, CA
Last spring frost
Feb 25
First fall frost
Nov 26
Growing season
272 days
Hardiness zone
9b
Explore more for Grayson, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Tracy Carbona, Ca (7.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.