Fort Irwin, CA Weather & Growing Conditions
Tonight
46°F
Clear
Clear, with a low around 46. West wind 13 to 18 mph, with gusts as high as 28 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Clear | 13 to 18 mph W | 0% |
| Wednesday | 63°F | Sunny | 5 to 12 mph NNW | 0% |
| Wednesday Night | 47°F | Mostly Clear | 6 mph NNW | 0% |
| Thursday | 65°F | Mostly Sunny | 8 mph NNE | 0% |
| Thursday Night | 49°F | Mostly Clear | 6 to 9 mph NNW | 0% |
| Friday | 66°F | Sunny | 8 to 14 mph N | 0% |
| Friday Night | 50°F | Clear | 6 to 9 mph N | 0% |
| Saturday | 68°F | Sunny | 6 to 9 mph NNE | 0% |
| Saturday Night | 51°F | Clear | 6 mph N | 0% |
| Sunday | 69°F | Sunny | 3 to 8 mph ENE | 0% |
| Sunday Night | 53°F | Partly Cloudy | 1 to 5 mph NNE | 0% |
| Monday | 69°F | Mostly Sunny | 2 to 6 mph SE | 0% |
| Monday Night | 53°F | Partly Cloudy | 3 mph W | 0% |
| Tuesday | 68°F | Mostly Sunny | 2 to 6 mph ENE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fort Irwin, CA
Last spring frost
Feb 19
First fall frost
Nov 26
Growing season
279 days
Hardiness zone
9a
Explore more for Fort Irwin, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Barstow Daggett Ap, Ca (33.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.