Lake Riverside, CA Weather & Growing Conditions
Today
92°F
Sunny
Sunny, with a high near 92. West wind 5 to 15 mph, with gusts as high as 25 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 92°F | Sunny | 5 to 15 mph W | 1% |
| Tonight | 64°F | Mostly Clear | 0 to 10 mph E | 1% |
| Wednesday | 91°F | Sunny | 0 to 15 mph W | 2% |
| Wednesday Night | 65°F | Mostly Clear | 0 to 10 mph NE | 0% |
| Thursday | 92°F | Sunny | 0 to 10 mph SW | 3% |
| Thursday Night | 65°F | Mostly Clear | 0 to 10 mph NW | 2% |
| Friday | 92°F | Sunny | 0 to 10 mph NW | 3% |
| Friday Night | 66°F | Mostly Clear | 0 to 10 mph NW | 0% |
| Saturday | 94°F | Sunny | 0 to 10 mph NW | 1% |
| Saturday Night | 66°F | Mostly Clear | 0 to 10 mph NW | 1% |
| Sunday | 93°F | Sunny | 0 to 10 mph NW | 11% |
| Sunday Night | 64°F | Mostly Clear | 0 to 10 mph NW | 3% |
| Monday | 89°F | Sunny | 0 to 10 mph W | 13% |
| Monday Night | 61°F | Mostly Clear | 0 to 10 mph NW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lake Riverside, CA
Last spring frost
Apr 29
First fall frost
Nov 18
Growing season
201 days
Hardiness zone
9b
Explore more for Lake Riverside, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Palomar Mtn Obsy, Ca (8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.