Boise City, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Boise City, a city in Ada County, Idaho.
Overnight
39°F
Mostly Cloudy
Mostly cloudy, with a low around 39. West wind around 3 mph.
7-day forecast for Boise City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 39°F | Mostly Cloudy | 3 mph W | 2% |
| Wednesday | 58°F | Sunny | 2 to 6 mph W | 1% |
| Wednesday Night | 39°F | Partly Cloudy | 3 mph SSE | 3% |
| Thursday | 56°F | Partly Sunny | 2 to 7 mph SW | 3% |
| Thursday Night | 33°F | Mostly Clear | 5 mph S | 0% |
| Friday | 59°F | Mostly Sunny | 3 mph E | 0% |
| Friday Night | 36°F | Partly Cloudy | 3 mph SSW | 0% |
| Saturday | 64°F | Sunny | 2 to 8 mph SE | 0% |
| Saturday Night | 42°F | Partly Cloudy | 8 to 12 mph SE | 0% |
| Sunday | 65°F | Mostly Sunny | 3 to 10 mph SSE | 0% |
| Sunday Night | 40°F | Mostly Cloudy | 3 mph NNE | 0% |
| Monday | 64°F | Partly Sunny | 3 mph SSE | 0% |
| Monday Night | 41°F | Mostly Cloudy | 0 to 3 mph NNE | 1% |
| Tuesday | 65°F | Mostly Sunny | 1 to 5 mph SSE | 9% |
Forecast source: National Weather Service (api.weather.gov) for Boise City (43.600, -116.232). Updated through the day.
Growing snapshot for Boise City
Last spring frost
Apr 24
First fall frost
Oct 21
Growing season
179 days
More local growing data for Boise City: nearby ZIP 83725 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Boise Air Terminal, Id (3.2 mi from Boise City). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.