Big Bear Lake, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Big Bear Lake, a city in San Bernardino County, California.
Today
89°F
Sunny
Sunny, with a high near 89. Southwest wind around 10 mph, with gusts as high as 20 mph.
7-day forecast for Big Bear Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Sunny | 10 mph SW | 1% |
| Tonight | 58°F | Mostly Clear | 5 to 10 mph SW | 1% |
| Wednesday | 88°F | Sunny | 0 to 10 mph W | 2% |
| Wednesday Night | 58°F | Mostly Clear | 0 to 10 mph SW | 2% |
| Thursday | 89°F | Sunny | 0 to 5 mph S | 4% |
| Thursday Night | 58°F | Mostly Clear | 0 to 5 mph SW | 4% |
| Friday | 89°F | Sunny | 0 to 5 mph SW | 8% |
| Friday Night | 58°F | Mostly Clear | 0 to 5 mph SW | 4% |
| Saturday | 89°F | Sunny | 0 to 5 mph SW | 13% |
| Saturday Night | 58°F | Mostly Clear | 0 to 5 mph S | 5% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms | 0 to 10 mph S | 17% |
| Sunday Night | 55°F | Mostly Clear | 0 to 10 mph SW | 8% |
| Monday | 84°F | Slight Chance Showers And Thunderstorms | 0 to 10 mph S | 20% |
| Monday Night | 52°F | Mostly Clear | 0 to 10 mph S | 8% |
Forecast source: National Weather Service (api.weather.gov) for Big Bear Lake (34.243, -116.894). Updated through the day.
Growing snapshot for Big Bear Lake
Last spring frost
May 27
First fall frost
Oct 4
Growing season
131 days
Hardiness zone
7b
More local growing data for Big Bear Lake: nearby ZIP 92315 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Adelanto
Apple Valley
Baker
Barstow
Big Bear City
Big River
Bloomington
Bluewater
Chino
Chino Hills
Colton
Crestline
Fontana
Fort Irwin
Grand Terrace
Hesperia
Highland
Homestead Valley
Homewood Canyon
Joshua Tree
Lake Arrowhead
Lenwood
Loma Linda
Lucerne Valley
Lytle Creek
Mentone
Montclair
Morongo Valley
Mountain View Acres
Muscoy
Climate data from the nearest NOAA station, Big Bear Lake, Ca (2.3 mi from Big Bear Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.