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
44°F
Smoke
Smoke. Mostly clear, with a low around 44. Wind around 0 mph.
7-day forecast for Garden Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 44°F | Smoke | 0 mph | 0% |
| Tuesday | 93°F | Areas Of Smoke | 0 to 6 mph ENE | 0% |
| Tuesday Night | 45°F | Smoke | 0 to 6 mph ENE | 0% |
| Wednesday | 99°F | Areas Of Smoke | 0 to 5 mph NNE | 0% |
| Wednesday Night | 49°F | Patchy Smoke | 0 to 5 mph SSE | 0% |
| Thursday | 106°F | Areas Of Smoke | 0 to 5 mph NNW | 0% |
| Thursday Night | 53°F | Patchy Smoke | 0 to 5 mph SSE | 0% |
| Friday | 107°F | Sunny | 0 to 7 mph N | 0% |
| Friday Night | 57°F | Mostly Clear | 0 to 7 mph NNE | 0% |
| Saturday | 105°F | Sunny | 1 to 7 mph W | 0% |
| Saturday Night | 56°F | Mostly Clear | 0 to 8 mph NE | 0% |
| Sunday | 101°F | Sunny | 0 to 7 mph NW | 0% |
| Sunday Night | 54°F | Mostly Clear | 0 to 7 mph NNW | 0% |
| Monday | 100°F | Sunny | 0 to 7 mph WNW | 0% |
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 Aug 4, 2026.