Signal Hill, CA Weather & Growing Conditions
Today
86°F
Patchy Fog then Partly Sunny
Patchy fog before 11am. Partly sunny, with a high near 86. Southwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Patchy Fog then Partly Sunny | 5 to 10 mph SW | 0% |
| Tonight | 67°F | Patchy Fog | 0 to 10 mph WNW | 0% |
| Wednesday | 85°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 68°F | Patchy Fog | 0 to 10 mph SW | 0% |
| Thursday | 86°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SW | 0% |
| Thursday Night | 69°F | Patchy Fog | 0 to 10 mph SSW | 0% |
| Friday | 86°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SSW | 0% |
| Friday Night | 69°F | Mostly Clear | 0 to 10 mph S | 0% |
| Saturday | 87°F | Mostly Sunny | 0 to 10 mph SSW | 0% |
| Saturday Night | 69°F | Mostly Clear | 0 to 10 mph S | 0% |
| Sunday | 86°F | Mostly Sunny | 0 to 10 mph S | 0% |
| Sunday Night | 69°F | Partly Cloudy | 5 to 10 mph S | 1% |
| Monday | 84°F | Mostly Sunny | 5 to 10 mph S | 1% |
| Monday Night | 68°F | Partly Cloudy | 5 to 10 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Signal Hill, CA
Growing season
365 days
Hardiness zone
10b
Explore more for Signal Hill, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Long Beach Daugherty Fld, Ca (1.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.