Downey, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Downey, a city in Los Angeles County, California.
Today
91°F
Patchy Fog then Mostly Sunny
Patchy fog before 11am. Mostly sunny, with a high near 91. Southwest wind 0 to 10 mph.
7-day forecast for Downey
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SW | 0% |
| Tonight | 69°F | Partly Cloudy then Patchy Fog | 0 to 10 mph WSW | 0% |
| Wednesday | 90°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 70°F | Partly Cloudy then Patchy Fog | 0 to 10 mph SSW | 0% |
| Thursday | 90°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SSW | 0% |
| Thursday Night | 69°F | Partly Cloudy then Patchy Fog | 0 to 10 mph SSW | 0% |
| Friday | 90°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SSW | 0% |
| Friday Night | 70°F | Mostly Clear | 0 to 10 mph S | 0% |
| Saturday | 90°F | Sunny | 0 to 10 mph S | 0% |
| Saturday Night | 70°F | Mostly Clear | 0 to 10 mph SSW | 0% |
| Sunday | 89°F | Sunny | 0 to 10 mph S | 0% |
| Sunday Night | 69°F | Mostly Clear | 0 to 10 mph S | 1% |
| Monday | 87°F | Sunny | 0 to 10 mph S | 1% |
| Monday Night | 68°F | Mostly Clear | 0 to 10 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Downey (33.938, -118.131). Updated through the day.
Growing snapshot for Downey
Growing season
365 days
Hardiness zone
10b
More local growing data for Downey: nearby ZIP 90241 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Long Beach Daugherty Fld, Ca (9 mi from Downey). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.