Joshua Tree, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Joshua Tree, a community in San Bernardino County, California.
Today
104°F
Sunny
Sunny, with a high near 104. South wind 2 to 10 mph, with gusts as high as 22 mph.
7-day forecast for Joshua Tree
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 104°F | Sunny | 2 to 10 mph S | 1% |
| Tonight | 80°F | Mostly Clear | 3 to 13 mph SW | 1% |
| Wednesday | 102°F | Sunny | 3 to 8 mph SSE | 0% |
| Wednesday Night | 80°F | Mostly Clear | 3 to 12 mph SW | 0% |
| Thursday | 102°F | Sunny | 2 to 6 mph S | 1% |
| Thursday Night | 81°F | Mostly Clear | 3 to 8 mph SW | 1% |
| Friday | 104°F | Sunny | 1 to 5 mph S | 6% |
| Friday Night | 82°F | Mostly Clear | 2 to 8 mph SW | 2% |
| Saturday | 104°F | Sunny | 2 to 7 mph S | 4% |
| Saturday Night | 82°F | Mostly Clear | 3 to 10 mph SW | 3% |
| Sunday | 102°F | Sunny | 3 to 12 mph S | 5% |
| Sunday Night | 79°F | Mostly Clear | 6 to 14 mph SSW | 3% |
| Monday | 99°F | Slight Chance Showers And Thunderstorms | 5 to 13 mph SSW | 10% |
| Monday Night | 76°F | Mostly Clear | 3 to 14 mph SW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Joshua Tree (34.124, -116.313). Updated through the day.
Growing snapshot for Joshua Tree
Last spring frost
Feb 28
First fall frost
Dec 1
Growing season
273 days
Hardiness zone
9a
More local growing data for Joshua Tree: nearby ZIP 92252 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Joshua Tree, Ca (0.5 mi from Joshua Tree). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.