Round Mountain, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Round Mountain, a community in Shasta County, California.
Today
51°F
Light Rain
Rain before 4pm, then haze and patchy fog. Mostly cloudy. High near 51, with temperatures falling to around 48 in the afternoon. West northwest wind 0 to 5 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Round Mountain
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 51°F | Light Rain | 0 to 5 mph WNW | 84% |
| Tonight | 39°F | Haze | 2 mph NE | 2% |
| Wednesday | 61°F | Mostly Sunny | 3 mph NNE | 0% |
| Wednesday Night | 42°F | Partly Cloudy | 1 to 5 mph NE | 0% |
| Thursday | 65°F | Sunny | 2 to 7 mph NNE | 0% |
| Thursday Night | 46°F | Mostly Clear | 2 to 6 mph NE | 0% |
| Friday | 70°F | Mostly Sunny | 0 to 3 mph NNE | 0% |
| Friday Night | 49°F | Mostly Clear | 0 to 6 mph NNE | 0% |
| Saturday | 69°F | Sunny | 0 to 3 mph W | 0% |
| Saturday Night | 48°F | Partly Cloudy | 1 mph ESE | 0% |
| Sunday | 66°F | Mostly Sunny | 0 to 3 mph SSE | 0% |
| Sunday Night | 48°F | Mostly Cloudy | 1 mph NE | 1% |
| Monday | 64°F | Mostly Sunny | 3 mph ESE | 7% |
| Monday Night | 47°F | Partly Cloudy | 1 mph NE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Round Mountain (40.797, -121.938). Updated through the day.
Growing snapshot for Round Mountain
Last spring frost
Jun 3
First fall frost
Sep 14
Growing season
102 days
Hardiness zone
9a
More local growing data for Round Mountain: nearby ZIP 96084 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Anderson
Bella Vista
Big Bend
Burney
Cassel
Centerville
Cottonwood
Fall River Mills
French Gulch
Happy Valley
Hat Creek
Igo
Johnson Park
Jones Valley
Keswick
Lake California
Lakehead
McArthur
Millville
Montgomery Creek
Mountain Gate
Oak Run
Old Station
Ono
Palo Cedro
Redding
Shasta
Shasta Lake
Shingletown
Whitmore
Climate data from the nearest NOAA station, Burney, Ca (12.6 mi from Round Mountain). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.