Garden Valley, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Garden Valley, a community in Boise County, Idaho.
Overnight
33°F
Mostly Cloudy
Mostly cloudy, with a low around 33. Wind around 0 mph.
7-day forecast for Garden Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 33°F | Mostly Cloudy | 0 mph | 2% |
| Wednesday | 59°F | Patchy Fog then Sunny | 0 to 5 mph WSW | 1% |
| Wednesday Night | 30°F | Partly Cloudy | 2 mph SW | 7% |
| Thursday | 53°F | Partly Sunny | 0 to 3 mph W | 7% |
| Thursday Night | 25°F | Mostly Clear then Areas Of Fog | 0 to 3 mph SSW | 0% |
| Friday | 56°F | Areas Of Fog then Mostly Sunny | 1 mph W | 0% |
| Friday Night | 27°F | Partly Cloudy | 1 mph NW | 0% |
| Saturday | 62°F | Sunny | 0 mph | 0% |
| Saturday Night | 33°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Sunday | 65°F | Mostly Sunny | 2 mph N | 1% |
| Sunday Night | 34°F | Mostly Cloudy | 1 mph NNE | 1% |
| Monday | 64°F | Patchy Fog then Partly Sunny | 0 mph | 0% |
| Monday Night | 34°F | Mostly Cloudy | 0 mph | 2% |
| Tuesday | 63°F | Areas Of Fog then Mostly Sunny | 0 mph | 12% |
Forecast source: National Weather Service (api.weather.gov) for Garden Valley (44.083, -115.958). Updated through the day.
Growing snapshot for Garden Valley
Last spring frost
Jun 1
First fall frost
Sep 10
Growing season
102 days
Hardiness zone
6b
More local growing data for Garden Valley: nearby ZIP 83622 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Garden Valley, Id (4.2 mi from Garden Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.