Susanville, CA Weather & Growing Conditions
This Afternoon
51°F
Chance Light Rain
A chance of rain. Mostly cloudy. High near 51, with temperatures falling to around 41 in the afternoon. Southwest wind 5 to 10 mph. Chance of precipitation is 50%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 51°F | Chance Light Rain | 5 to 10 mph SW | 48% |
| Tonight | 29°F | Slight Chance Light Rain then Partly Cloudy | 0 to 5 mph W | 17% |
| Wednesday | 53°F | Mostly Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 28°F | Partly Cloudy | 0 mph | 0% |
| Thursday | 58°F | Sunny | 0 mph | 0% |
| Thursday Night | 31°F | Mostly Clear | 0 mph | 0% |
| Friday | 59°F | Mostly Sunny | 0 to 5 mph E | 0% |
| Friday Night | 31°F | Mostly Clear | 0 mph | 0% |
| Saturday | 60°F | Sunny | 0 to 5 mph E | 0% |
| Saturday Night | 32°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 63°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Sunday Night | 33°F | Mostly Cloudy | 0 mph | 0% |
| Monday | 61°F | Mostly Sunny | 0 to 5 mph SW | 4% |
| Monday Night | 33°F | Partly Cloudy | 0 to 5 mph W | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Susanville, CA
Last spring frost
May 16
First fall frost
Oct 8
Growing season
143 days
Hardiness zone
7a
Explore more for Susanville, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Susanville 2Sw, Ca (9.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.