Highgrove, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Highgrove, a community in Riverside County, California.
Overnight
66°F
Mostly Clear
Mostly clear, with a low around 66. Southwest wind 0 to 5 mph.
7-day forecast for Highgrove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Tuesday | 99°F | Sunny | 0 to 15 mph W | 0% |
| Tuesday Night | 67°F | Clear | 0 to 10 mph SW | 0% |
| Wednesday | 98°F | Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 67°F | Mostly Clear | 0 to 10 mph W | 0% |
| Thursday | 99°F | Sunny | 0 to 10 mph SW | 1% |
| Thursday Night | 68°F | Mostly Clear | 0 to 10 mph W | 1% |
| Friday | 99°F | Sunny | 0 to 10 mph W | 0% |
| Friday Night | 69°F | Mostly Clear | 0 to 10 mph W | 0% |
| Saturday | 101°F | Sunny | 0 to 10 mph W | 0% |
| Saturday Night | 70°F | Mostly Clear | 0 to 10 mph SW | 0% |
| Sunday | 100°F | Sunny | 0 to 10 mph SW | 1% |
| Sunday Night | 68°F | Mostly Clear | 0 to 10 mph SW | 1% |
| Monday | 96°F | Sunny | 0 to 10 mph SW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Highgrove (34.011, -117.310). Updated through the day.
Growing snapshot for Highgrove
Last spring frost
Jan 10
First fall frost
Jan 2
Growing season
365 days
Hardiness zone
10a
More local growing data for Highgrove: nearby ZIP 92507 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Riverside Citrus Exp, Ca (3.5 mi from Highgrove). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.