Johnsville, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Johnsville, a community in Plumas County, California.
Today
49°F
Light Rain
Rain. Mostly cloudy. High near 49, with temperatures falling to around 38 in the afternoon. Southwest wind 5 to 15 mph. Chance of precipitation is 80%.
7-day forecast for Johnsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 49°F | Light Rain | 5 to 15 mph SW | 79% |
| Tonight | 31°F | Chance Light Rain then Mostly Cloudy | 0 to 5 mph W | 44% |
| Wednesday | 56°F | Mostly Sunny | 0 mph | 0% |
| Wednesday Night | 32°F | Partly Cloudy | 0 mph | 0% |
| Thursday | 59°F | Sunny | 0 mph | 0% |
| Thursday Night | 32°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Friday | 62°F | Sunny | 0 to 5 mph NE | 0% |
| Friday Night | 35°F | Mostly Clear | 0 to 10 mph NE | 0% |
| Saturday | 66°F | Sunny | 0 to 5 mph SE | 0% |
| Saturday Night | 37°F | Mostly Clear | 0 to 5 mph S | 0% |
| Sunday | 63°F | Mostly Sunny | 0 to 5 mph S | 0% |
| Sunday Night | 37°F | Partly Cloudy | 0 mph | 0% |
| Monday | 60°F | Mostly Sunny | 0 to 5 mph S | 3% |
| Monday Night | 37°F | Partly Cloudy | 0 mph | 3% |
Forecast source: National Weather Service (api.weather.gov) for Johnsville (39.770, -120.700). Updated through the day.
Growing snapshot for Johnsville
Last spring frost
Jun 11
First fall frost
Sep 10
Growing season
91 days
Hardiness zone
7a
More local growing data for Johnsville: 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
Cromberg
Delleker
East Quincy
East Shore
Gold Mountain
Graeagle
Greenhorn
Greenville
Hamilton Branch
Indian Falls
Iron Horse
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 Johnsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.