Lenwood, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lenwood, a community in San Bernardino County, California.
This Afternoon
72°F
Sunny
Sunny. High near 72, with temperatures falling to around 67 in the afternoon. West southwest wind around 10 mph.
7-day forecast for Lenwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Sunny | 10 mph WSW | 0% |
| Tonight | 46°F | Clear | 6 to 18 mph W | 0% |
| Wednesday | 69°F | Sunny | 5 mph WNW | 0% |
| Wednesday Night | 45°F | Mostly Clear | 2 mph SE | 0% |
| Thursday | 72°F | Mostly Sunny | 1 to 5 mph NNE | 0% |
| Thursday Night | 47°F | Mostly Clear | 1 to 5 mph NNE | 0% |
| Friday | 75°F | Sunny | 2 to 13 mph NNE | 0% |
| Friday Night | 48°F | Clear | 1 to 7 mph NE | 0% |
| Saturday | 76°F | Sunny | 3 to 12 mph ENE | 0% |
| Saturday Night | 49°F | Mostly Clear | 2 to 7 mph ENE | 0% |
| Sunday | 77°F | Sunny | 2 to 13 mph ENE | 0% |
| Sunday Night | 51°F | Partly Cloudy | 1 to 8 mph SE | 0% |
| Monday | 76°F | Mostly Sunny | 1 to 5 mph NW | 0% |
| Monday Night | 51°F | Partly Cloudy | 3 mph SSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Lenwood (34.886, -117.108). Updated through the day.
Growing snapshot for Lenwood
Last spring frost
Feb 22
First fall frost
Nov 23
Growing season
271 days
Hardiness zone
9a
More local growing data for Lenwood: nearby ZIP 92311 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Barstow, Ca (5.2 mi from Lenwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.