San Bernardino, CA Weather & Growing Conditions
Today
89°F
Sunny
Sunny, with a high near 89. Southwest wind 0 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Sunny | 0 to 10 mph SW | 0% |
| Tonight | 64°F | Mostly Clear | 0 to 10 mph SW | 0% |
| Sunday | 87°F | Mostly Sunny | 0 to 10 mph SW | 0% |
| Sunday Night | 65°F | Partly Cloudy | 0 to 10 mph SW | 3% |
| Monday | 82°F | Mostly Sunny | 0 to 5 mph SW | 3% |
| Monday Night | 62°F | Partly Cloudy | 0 to 5 mph W | 1% |
| Tuesday | 86°F | Sunny | 0 to 5 mph W | 0% |
| Tuesday Night | 65°F | Clear | 0 to 5 mph NW | 0% |
| Wednesday | 94°F | Sunny | 0 to 5 mph NW | 1% |
| Wednesday Night | 68°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Thursday | 95°F | Sunny | 0 to 5 mph W | 4% |
| Thursday Night | 68°F | Mostly Clear | 0 to 5 mph W | 4% |
| Friday | 93°F | Sunny | 0 to 5 mph S | 4% |
| Friday Night | 68°F | Mostly Clear | 0 to 5 mph S | 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 Sep 19, 2026.