Smiths Ferry, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smiths Ferry, a community in Boise County, Idaho.
Overnight
29°F
Mostly Cloudy
Mostly cloudy, with a low around 29. Wind around 0 mph.
7-day forecast for Smiths Ferry
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 29°F | Mostly Cloudy | 0 mph | 1% |
| Wednesday | 51°F | Sunny | 1 mph S | 1% |
| Wednesday Night | 29°F | Partly Cloudy | 0 mph | 10% |
| Thursday | 46°F | Partly Sunny | 0 mph | 10% |
| Thursday Night | 24°F | Mostly Clear | 0 mph | 0% |
| Friday | 50°F | Mostly Sunny | 1 mph WSW | 0% |
| Friday Night | 30°F | Partly Cloudy | 1 mph ENE | 0% |
| Saturday | 56°F | Mostly Sunny | 1 mph NNE | 0% |
| Saturday Night | 33°F | Partly Cloudy | 2 mph NE | 0% |
| Sunday | 57°F | Mostly Sunny | 2 mph NW | 1% |
| Sunday Night | 33°F | Mostly Cloudy | 1 mph N | 1% |
| Monday | 57°F | Partly Sunny | 1 mph NNW | 1% |
| Monday Night | 34°F | Mostly Cloudy | 0 mph | 3% |
| Tuesday | 55°F | Mostly Sunny | 1 mph WNW | 13% |
Forecast source: National Weather Service (api.weather.gov) for Smiths Ferry (44.299, -116.078). Updated through the day.
Growing snapshot for Smiths Ferry
Last spring frost
Jun 1
First fall frost
Sep 10
Growing season
102 days
Hardiness zone
7a
More local growing data for Smiths Ferry: nearby ZIP 83602 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Garden Valley, Id (8.8 mi from Smiths Ferry). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.