Palermo, CA Weather & Growing Conditions
Tonight
43°F
Haze
Haze and patchy fog before 1am. Partly cloudy. Low around 43, with temperatures rising to around 45 overnight. North northwest wind 1 to 5 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 43°F | Haze | 1 to 5 mph NNW | 4% |
| Wednesday | 69°F | Sunny | 2 to 8 mph NW | 0% |
| Wednesday Night | 44°F | Partly Cloudy | 2 mph NNE | 0% |
| Thursday | 72°F | Sunny | 2 to 6 mph NW | 0% |
| Thursday Night | 44°F | Mostly Clear | 0 to 3 mph NNE | 0% |
| Friday | 72°F | Sunny | 3 mph WNW | 0% |
| Friday Night | 47°F | Mostly Clear | 2 mph ENE | 0% |
| Saturday | 73°F | Sunny | 3 mph S | 0% |
| Saturday Night | 48°F | Mostly Clear | 2 mph ENE | 0% |
| Sunday | 74°F | Mostly Sunny | 0 to 3 mph WSW | 0% |
| Sunday Night | 49°F | Partly Cloudy | 1 mph E | 0% |
| Monday | 72°F | Mostly Sunny | 2 mph SSE | 4% |
| Monday Night | 48°F | Partly Cloudy | 2 mph ENE | 4% |
| Tuesday | 72°F | Mostly Sunny | 3 mph SSE | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Palermo, CA
Last spring frost
Jan 29
First fall frost
Dec 7
Growing season
317 days
Hardiness zone
9b
Explore more for Palermo, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Oroville Muni Ap, Ca (5.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.