Susanville, CA Weather & Growing Conditions
Overnight
43°F
Clear
Clear, with a low around 43. Northwest wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Clear | 0 mph | 0% |
| Saturday | 76°F | Sunny | 0 to 5 mph SE | 0% |
| Saturday Night | 44°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Sunday | 78°F | Mostly Sunny then Patchy Smoke | 0 to 5 mph SE | 0% |
| Sunday Night | 48°F | Mostly Cloudy | 0 to 5 mph N | 0% |
| Monday | 82°F | Mostly Sunny | 0 to 5 mph E | 0% |
| Monday Night | 47°F | Partly Cloudy | 0 to 5 mph NW | 0% |
| Tuesday | 82°F | Sunny | 0 to 5 mph S | 0% |
| Tuesday Night | 47°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Wednesday | 83°F | Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 47°F | Partly Cloudy | 0 to 5 mph W | 0% |
| Thursday | 83°F | Mostly Sunny | 0 to 10 mph SW | 0% |
| Thursday Night | 46°F | Partly Cloudy | 0 to 10 mph W | 1% |
| Friday | 78°F | Mostly Sunny | 0 to 10 mph SW | 1% |
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 Sep 19, 2026.