Highland, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Highland, a city in San Bernardino County, California.
This Afternoon
73°F
Mostly Sunny
Mostly sunny, with a high near 73. West wind around 5 mph.
7-day forecast for Highland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Mostly Sunny | 5 mph W | 0% |
| Tonight | 53°F | Mostly Clear | 0 to 5 mph E | 0% |
| Wednesday | 74°F | Sunny | 0 to 5 mph S | 0% |
| Wednesday Night | 56°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Thursday | 77°F | Sunny | 0 to 5 mph NW | 0% |
| Thursday Night | 56°F | Mostly Clear | 5 to 15 mph NE | 0% |
| Friday | 79°F | Sunny | 0 to 5 mph N | 0% |
| Friday Night | 58°F | Clear | 5 to 15 mph NE | 0% |
| Saturday | 81°F | Sunny | 0 to 10 mph NE | 0% |
| Saturday Night | 59°F | Clear | 0 to 15 mph NE | 0% |
| Sunday | 82°F | Sunny | 0 to 5 mph NE | 0% |
| Sunday Night | 61°F | Partly Cloudy | 0 to 10 mph NE | 0% |
| Monday | 80°F | Mostly Sunny | 0 mph | 0% |
| Monday Night | 60°F | Partly Cloudy | 0 to 5 mph NE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Highland (34.113, -117.166). Updated through the day.
Growing snapshot for Highland
Last spring frost
Jan 27
First fall frost
Dec 19
Growing season
329 days
Hardiness zone
10a
More local growing data for Highland: nearby ZIP 92346 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Redlands, Ca (6.1 mi from Highland). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.