Fall River Mills, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fall River Mills, a community in Shasta County, California.
This Afternoon
49°F
Light Rain Likely
Rain likely before 5pm, then patchy fog. Mostly cloudy. High near 49, with temperatures falling to around 44 in the afternoon. West northwest wind 1 to 7 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Fall River Mills
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 49°F | Light Rain Likely | 1 to 7 mph WNW | 60% |
| Tonight | 30°F | Haze | 1 mph ESE | 9% |
| Wednesday | 55°F | Widespread Frost then Mostly Sunny | 2 mph N | 0% |
| Wednesday Night | 30°F | Mostly Cloudy then Widespread Frost | 1 mph E | 0% |
| Thursday | 58°F | Widespread Frost then Sunny | 3 mph NE | 0% |
| Thursday Night | 28°F | Widespread Frost | 5 mph ENE | 0% |
| Friday | 64°F | Widespread Frost then Mostly Sunny | 2 mph NE | 0% |
| Friday Night | 32°F | Mostly Clear | 1 to 8 mph ENE | 0% |
| Saturday | 66°F | Sunny | 3 mph N | 0% |
| Saturday Night | 32°F | Partly Cloudy | 3 mph S | 0% |
| Sunday | 62°F | Mostly Sunny | 3 mph SSW | 0% |
| Sunday Night | 32°F | Mostly Cloudy | 0 to 3 mph SE | 1% |
| Monday | 60°F | Partly Sunny | 0 to 3 mph SW | 5% |
| Monday Night | 31°F | Partly Cloudy | 0 to 3 mph SSE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Fall River Mills (41.007, -121.441). Updated through the day.
Growing snapshot for Fall River Mills
Last spring frost
May 29
First fall frost
Sep 19
Growing season
113 days
Hardiness zone
7b
More local growing data for Fall River Mills: nearby ZIP 96028 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Hat Creek, Ca (6.9 mi from Fall River Mills). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.