Grass Valley, NV Weather & Growing Conditions
This Afternoon
57°F
Mostly Cloudy
Mostly cloudy. High near 57, with temperatures falling to around 47 in the afternoon. West northwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Mostly Cloudy | 0 to 5 mph WNW | 9% |
| Tonight | 31°F | Mostly Cloudy | 0 to 5 mph SW | 9% |
| Wednesday | 56°F | Mostly Sunny | 0 to 5 mph SW | 1% |
| Wednesday Night | 31°F | Mostly Cloudy | 0 mph | 0% |
| Thursday | 57°F | Sunny | 0 to 5 mph NW | 0% |
| Thursday Night | 29°F | Mostly Clear | 0 mph | 0% |
| Friday | 59°F | Sunny | 0 mph | 0% |
| Friday Night | 31°F | Mostly Clear | 0 mph | 0% |
| Saturday | 64°F | Sunny | 0 to 5 mph E | 0% |
| Saturday Night | 33°F | Mostly Clear | 0 to 5 mph ENE | 0% |
| Sunday | 66°F | Mostly Sunny | 0 to 5 mph S | 0% |
| Sunday Night | 35°F | Partly Cloudy | 0 to 5 mph SSE | 0% |
| Monday | 65°F | Mostly Sunny | 0 to 5 mph S | 1% |
| Monday Night | 35°F | Partly Cloudy | 0 mph | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Grass Valley, NV
Last spring frost
May 31
First fall frost
Sep 17
Growing season
108 days
Hardiness zone
6b
Explore more for Grass Valley, NV: full frost dates · planting calendar · Nevada frost dates
Climate data from the nearest NOAA station, Winnemucca Muni Ap, Nv (7.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.