Cromberg, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cromberg, a community in Plumas County, California.
This Afternoon
72°F
Sunny
Sunny, with a high near 72. Northwest wind around 5 mph.
7-day forecast for Cromberg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Sunny | 5 mph NW | 0% |
| Tonight | 42°F | Clear | 0 to 5 mph NE | 0% |
| Saturday | 78°F | Sunny | 0 to 5 mph SE | 0% |
| Saturday Night | 45°F | Partly Cloudy | 0 to 5 mph E | 0% |
| Sunday | 80°F | Partly Sunny | 0 to 5 mph SE | 0% |
| Sunday Night | 47°F | Mostly Cloudy | 0 to 5 mph S | 0% |
| Monday | 81°F | Mostly Sunny | 0 to 5 mph NE | 2% |
| Monday Night | 47°F | Partly Cloudy | 0 to 5 mph NW | 0% |
| Tuesday | 83°F | Sunny | 0 to 5 mph E | 0% |
| Tuesday Night | 47°F | Mostly Clear | 0 to 5 mph E | 0% |
| Wednesday | 83°F | Sunny | 0 to 5 mph S | 0% |
| Wednesday Night | 50°F | Mostly Clear | 0 to 5 mph S | 0% |
| Thursday | 82°F | Sunny | 5 mph S | 0% |
| Thursday Night | 49°F | Partly Cloudy | 5 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Cromberg (39.868, -120.690). Updated through the day.
Growing snapshot for Cromberg
Last spring frost
Jun 11
First fall frost
Sep 10
Growing season
91 days
Hardiness zone
7a
More local growing data for Cromberg: nearby ZIP 96103 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Almanor
Beckwourth
Belden
Blairsden
Bucks Lake
C-Road
Canyondam
Caribou
Chester
Chilcoot-Vinton
Clear Creek
Clio
Crescent Mills
Delleker
East Quincy
East Shore
Gold Mountain
Graeagle
Greenhorn
Greenville
Hamilton Branch
Indian Falls
Iron Horse
Johnsville
Keddie
La Porte
Lake Almanor Country Club
Lake Almanor Peninsula
Lake Almanor West
Lake Davis
Climate data from the nearest NOAA station, Portola, Ca (10.7 mi from Cromberg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.