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
47°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4am, then patchy fog and scattered showers and thunderstorms between 4am and 5am, then areas of fog and isolated showers and thunderstorms. Mostly cloudy, with a low around 47. West northwest wind around 1 mph. Chance of precipitation is 60%.
7-day forecast for Garden Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Chance Showers And Thunderstorms | 1 mph WNW | 61% |
| Saturday | 78°F | Areas Of Fog then Mostly Sunny | 0 to 6 mph WNW | 16% |
| Saturday Night | 43°F | Mostly Clear | 0 to 6 mph W | 7% |
| Sunday | 84°F | Areas Of Fog then Sunny | 0 to 5 mph WNW | 1% |
| Sunday Night | 45°F | Clear | 0 to 5 mph SSW | 0% |
| Monday | 86°F | Sunny | 2 mph NE | 0% |
| Monday Night | 48°F | Partly Cloudy | 0 to 3 mph WSW | 0% |
| Tuesday | 87°F | Sunny | 0 to 6 mph NNE | 0% |
| Tuesday Night | 46°F | Mostly Clear | 2 mph NE | 2% |
| Wednesday | 89°F | Sunny | 0 to 5 mph S | 0% |
| Wednesday Night | 47°F | Mostly Clear | 0 to 3 mph E | 1% |
| Thursday | 90°F | Sunny | 0 to 3 mph SSE | 0% |
| Thursday Night | 47°F | Partly Cloudy | 1 to 5 mph ESE | 2% |
| Friday | 87°F | Mostly Sunny | 0 to 5 mph SW | 3% |
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 Sep 19, 2026.