Big River, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Big River, a community in San Bernardino County, California.
Today
77°F
Mostly Sunny
Mostly sunny. High near 77, with temperatures falling to around 73 in the afternoon. East southeast wind around 5 mph.
7-day forecast for Big River
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Mostly Sunny | 5 mph ESE | 0% |
| Tonight | 53°F | Mostly Clear | 1 mph NE | 0% |
| Wednesday | 80°F | Sunny | 1 to 7 mph NNW | 0% |
| Wednesday Night | 51°F | Mostly Clear | 5 mph N | 0% |
| Thursday | 79°F | Sunny | 5 mph N | 0% |
| Thursday Night | 53°F | Partly Cloudy | 5 mph N | 0% |
| Friday | 82°F | Sunny | 5 to 12 mph N | 0% |
| Friday Night | 54°F | Clear | 6 to 12 mph N | 0% |
| Saturday | 84°F | Sunny | 7 mph N | 0% |
| Saturday Night | 55°F | Mostly Clear | 6 mph N | 0% |
| Sunday | 85°F | Sunny | 5 mph N | 1% |
| Sunday Night | 58°F | Partly Cloudy | 3 mph NNE | 1% |
| Monday | 84°F | Mostly Sunny | 3 mph E | 1% |
| Monday Night | 58°F | Partly Cloudy | 2 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Big River (34.140, -114.362). Updated through the day.
Growing snapshot for Big River
Last spring frost
Jan 12
First fall frost
Dec 19
Growing season
338 days
Hardiness zone
9b
More local growing data for Big River: nearby ZIP 92242 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Adelanto
Apple Valley
Baker
Barstow
Big Bear City
Big Bear Lake
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, Parker, Az (2.5 mi from Big River). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.