Cobb, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cobb, a community in Lake County, California.
This Afternoon
48°F
Light Rain
Rain. Cloudy, with a high near 48. South southeast wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Cobb
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 48°F | Light Rain | 6 to 9 mph SSE | 97% |
| Tonight | 43°F | Light Rain Likely then Mostly Cloudy | 6 mph E | 61% |
| Wednesday | 59°F | Mostly Sunny | 3 to 7 mph NNW | 0% |
| Wednesday Night | 45°F | Partly Cloudy | 7 mph NW | 0% |
| Thursday | 64°F | Sunny | 2 to 6 mph NW | 0% |
| Thursday Night | 48°F | Mostly Clear | 2 to 6 mph NNW | 0% |
| Friday | 68°F | Sunny | 5 mph NNW | 0% |
| Friday Night | 51°F | Mostly Clear | 5 mph NNW | 0% |
| Saturday | 68°F | Sunny | 3 mph E | 0% |
| Saturday Night | 50°F | Partly Cloudy | 3 mph WNW | 0% |
| Sunday | 66°F | Mostly Sunny | 3 mph NW | 0% |
| Sunday Night | 50°F | Partly Cloudy | 3 mph WNW | 1% |
| Monday | 64°F | Partly Sunny | 3 mph WNW | 2% |
| Monday Night | 48°F | Partly Cloudy | 3 mph WNW | 5% |
Forecast source: National Weather Service (api.weather.gov) for Cobb (38.835, -122.722). Updated through the day.
Growing snapshot for Cobb
Last spring frost
Apr 10
First fall frost
Nov 6
Growing season
209 days
Hardiness zone
9b
More local growing data for Cobb: nearby ZIP 95426 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Clearlake
Clearlake Oaks
Clearlake Riviera
Hidden Valley Lake
Kelseyville
Lakeport
Lower Lake
Lucerne
Middletown
Nice
North Lakeport
Soda Bay
Spring Valley
Upper Lake
Climate data from the nearest NOAA station, Clearlake 4 Se, Ca (10.9 mi from Cobb). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.