Lake Arrowhead, CA Weather & Growing Conditions
Today
86°F
Sunny
Sunny, with a high near 86. South wind 0 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 0 to 10 mph S | 0% |
| Tonight | 69°F | Mostly Clear | 0 to 10 mph N | 0% |
| Wednesday | 85°F | Sunny | 0 to 10 mph SE | 1% |
| Wednesday Night | 69°F | Mostly Clear | 0 to 10 mph NE | 0% |
| Thursday | 86°F | Sunny | 0 to 5 mph S | 4% |
| Thursday Night | 70°F | Mostly Clear | 0 to 5 mph S | 4% |
| Friday | 87°F | Sunny | 0 to 5 mph S | 4% |
| Friday Night | 71°F | Mostly Clear | 0 to 5 mph S | 1% |
| Saturday | 88°F | Sunny | 0 to 5 mph S | 4% |
| Saturday Night | 71°F | Mostly Clear | 0 to 5 mph S | 2% |
| Sunday | 86°F | Sunny | 0 to 5 mph S | 5% |
| Sunday Night | 69°F | Mostly Clear | 0 to 5 mph S | 2% |
| Monday | 81°F | Sunny | 0 to 5 mph S | 8% |
| Monday Night | 66°F | Mostly Clear | 0 to 5 mph S | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lake Arrowhead, CA
Last spring frost
May 5
First fall frost
Nov 2
Growing season
176 days
Hardiness zone
8a
Explore more for Lake Arrowhead, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Lake Arrowhead, Ca (3.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.