Millville, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Millville, a community in Shasta County, California.
This Afternoon
57°F
Chance Light Rain
A chance of rain before 4pm. Mostly cloudy. High near 57, with temperatures falling to around 55 in the afternoon. North northwest wind 1 to 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Millville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Chance Light Rain | 1 to 5 mph NNW | 51% |
| Tonight | 39°F | Haze | 2 mph NNE | 3% |
| Wednesday | 68°F | Patchy Fog then Mostly Sunny | 3 mph N | 0% |
| Wednesday Night | 41°F | Partly Cloudy | 2 mph NNE | 0% |
| Thursday | 73°F | Sunny | 2 to 7 mph N | 0% |
| Thursday Night | 43°F | Mostly Clear | 5 mph N | 0% |
| Friday | 75°F | Sunny | 2 mph N | 0% |
| Friday Night | 45°F | Mostly Clear | 0 to 3 mph NNE | 0% |
| Saturday | 73°F | Sunny | 1 mph SSW | 0% |
| Saturday Night | 44°F | Mostly Clear | 1 mph ENE | 0% |
| Sunday | 72°F | Mostly Sunny | 1 mph NNW | 0% |
| Sunday Night | 44°F | Partly Cloudy | 1 mph NNE | 1% |
| Monday | 70°F | Mostly Sunny | 1 mph NNW | 5% |
| Monday Night | 43°F | Partly Cloudy | 2 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Millville (40.560, -122.176). Updated through the day.
Growing snapshot for Millville
Last spring frost
Mar 3
First fall frost
Nov 21
Growing season
261 days
Hardiness zone
9a
More local growing data for Millville: nearby ZIP 96073 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Redding Muni Ap, Ca (7.8 mi from Millville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.