Round Mountain, CA Weather & Growing Conditions
Today
42°F
Light Rain
Rain before 4pm, then haze and areas of fog. Mostly cloudy. High near 42, with temperatures falling to around 40 in the afternoon. West southwest wind 0 to 6 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 42°F | Light Rain | 0 to 6 mph WSW | 84% |
| Tonight | 34°F | Haze then Patchy Frost | 0 to 6 mph ENE | 3% |
| Wednesday | 51°F | Patchy Frost then Mostly Sunny | 0 to 7 mph NNE | 0% |
| Wednesday Night | 38°F | Partly Cloudy | 0 to 8 mph E | 0% |
| Thursday | 55°F | Sunny | 1 to 10 mph NE | 0% |
| Thursday Night | 43°F | Mostly Clear | 1 to 7 mph NE | 0% |
| Friday | 61°F | Mostly Sunny | 0 to 6 mph NNE | 0% |
| Friday Night | 47°F | Mostly Clear | 0 to 7 mph NE | 0% |
| Saturday | 61°F | Sunny | 1 to 5 mph N | 0% |
| Saturday Night | 45°F | Partly Cloudy | 3 mph SE | 0% |
| Sunday | 58°F | Mostly Sunny | 1 to 5 mph WSW | 0% |
| Sunday Night | 44°F | Mostly Cloudy | 3 mph E | 1% |
| Monday | 55°F | Mostly Sunny | 1 to 5 mph SW | 7% |
| Monday Night | 44°F | Partly Cloudy | 3 mph E | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Round Mountain, CA
Last spring frost
Jun 3
First fall frost
Sep 14
Growing season
102 days
Hardiness zone
9a
Explore more for Round Mountain, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Burney, Ca (12.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.