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
53°F
Smoke
Smoke. Mostly clear. Low around 53, with temperatures rising to around 58 overnight. South southwest wind around 2 mph.
7-day forecast for Boise City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Smoke | 2 mph SSW | 0% |
| Tuesday | 89°F | Smoke | 1 to 8 mph WSW | 0% |
| Tuesday Night | 57°F | Smoke | 2 to 8 mph SSW | 0% |
| Wednesday | 94°F | Areas Of Smoke | 5 mph SSW | 0% |
| Wednesday Night | 62°F | Patchy Smoke | 2 to 7 mph SSE | 0% |
| Thursday | 100°F | Areas Of Smoke | 1 to 5 mph NNE | 0% |
| Thursday Night | 66°F | Areas Of Smoke | 2 to 7 mph S | 0% |
| Friday | 101°F | Sunny | 2 to 7 mph NNW | 0% |
| Friday Night | 65°F | Mostly Clear | 2 to 10 mph NNW | 0% |
| Saturday | 99°F | Sunny | 2 to 12 mph NNW | 0% |
| Saturday Night | 65°F | Mostly Clear | 3 to 12 mph NNW | 0% |
| Sunday | 96°F | Sunny | 5 to 12 mph NW | 0% |
| Sunday Night | 63°F | Mostly Clear | 3 to 12 mph NNW | 0% |
| Monday | 94°F | Sunny | 3 to 10 mph NW | 0% |
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 Aug 4, 2026.