Johannesburg, CA Weather & Growing Conditions
This Afternoon
81°F
Sunny
Sunny, with a high near 81. West southwest wind around 9 mph, with gusts as high as 18 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Sunny | 9 mph WSW | 0% |
| Tonight | 63°F | Clear | 2 to 10 mph WNW | 0% |
| Saturday | 86°F | Sunny | 2 to 7 mph NE | 0% |
| Saturday Night | 67°F | Partly Cloudy | 1 to 5 mph NW | 0% |
| Sunday | 86°F | Partly Sunny | 2 to 7 mph ENE | 0% |
| Sunday Night | 69°F | Mostly Cloudy | 3 to 7 mph SSW | 1% |
| Monday | 83°F | Mostly Sunny | 5 to 8 mph SSW | 7% |
| Monday Night | 67°F | Mostly Clear | 3 to 8 mph WSW | 7% |
| Tuesday | 85°F | Sunny | 6 mph NNW | 2% |
| Tuesday Night | 69°F | Clear | 1 to 6 mph NW | 2% |
| Wednesday | 88°F | Sunny | 5 to 9 mph NE | 0% |
| Wednesday Night | 71°F | Mostly Clear | 1 to 9 mph NE | 1% |
| Thursday | 90°F | Sunny | 7 to 12 mph E | 2% |
| Thursday Night | 72°F | Mostly Clear | 3 to 8 mph SSW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Johannesburg, CA
Last spring frost
Mar 19
First fall frost
Nov 25
Growing season
251 days
Hardiness zone
9a
Explore more for Johannesburg, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Randsburg, Ca (0.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.