San Bernardino, CA Weather & Growing Conditions
Overnight
53°F
Mostly Clear
Mostly clear, with a low around 53. Northeast wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Mostly Clear | 0 mph | 2% |
| Wednesday | 74°F | Sunny | 0 mph | 1% |
| Wednesday Night | 54°F | Mostly Clear | 0 to 10 mph N | 0% |
| Thursday | 79°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Thursday Night | 57°F | Partly Cloudy | 0 to 10 mph N | 0% |
| Friday | 80°F | Sunny | 5 to 10 mph N | 0% |
| Friday Night | 57°F | Clear | 10 to 15 mph NE | 0% |
| Saturday | 82°F | Sunny | 0 to 10 mph N | 0% |
| Saturday Night | 58°F | Clear | 0 to 15 mph N | 0% |
| Sunday | 83°F | Sunny | 0 to 5 mph NE | 0% |
| Sunday Night | 59°F | Mostly Clear | 0 to 15 mph NE | 0% |
| Monday | 81°F | Sunny | 0 to 5 mph NE | 0% |
| Monday Night | 58°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Tuesday | 79°F | Sunny | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for San Bernardino, CA
Last spring frost
Jan 27
First fall frost
Dec 19
Growing season
329 days
Hardiness zone
10a
Explore more for San Bernardino, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Redlands, Ca (9.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.