Hornbrook, CA Weather & Growing Conditions
Today
91°F
Areas Of Smoke
Areas of smoke before 2pm. Sunny, with a high near 91. East northeast wind 3 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Areas Of Smoke | 3 to 7 mph ENE | 0% |
| Tonight | 64°F | Patchy Smoke | 2 to 7 mph N | 0% |
| Wednesday | 93°F | Sunny | 2 to 6 mph NNE | 0% |
| Wednesday Night | 65°F | Clear | 0 to 6 mph NNW | 0% |
| Thursday | 92°F | Sunny | 0 to 6 mph SW | 0% |
| Thursday Night | 65°F | Clear | 1 to 6 mph NNW | 0% |
| Friday | 90°F | Sunny | 1 to 7 mph NNE | 0% |
| Friday Night | 63°F | Clear | 1 to 7 mph NNW | 0% |
| Saturday | 86°F | Sunny | 1 to 9 mph N | 0% |
| Saturday Night | 58°F | Clear | 5 to 9 mph NNW | 0% |
| Sunday | 81°F | Sunny | 2 to 9 mph NNW | 0% |
| Sunday Night | 55°F | Clear | 5 to 9 mph NNW | 0% |
| Monday | 80°F | Sunny | 2 to 9 mph N | 0% |
| Monday Night | 54°F | Clear | 2 to 9 mph NNW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hornbrook, CA
Last spring frost
May 12
First fall frost
Oct 8
Growing season
148 days
Hardiness zone
8a
Explore more for Hornbrook, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Montague Siskiyou Co Ap, Ca (14.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.