Boise City, ID Weather & Growing Conditions
Tonight
54°F
Mostly Clear
Mostly clear. Low around 54, with temperatures rising to around 58 overnight. East northeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Mostly Clear | 5 mph ENE | 2% |
| Sunday | 75°F | Sunny | 5 mph S | 1% |
| Sunday Night | 56°F | Mostly Clear | 2 to 7 mph NE | 0% |
| Monday | 79°F | Sunny | 5 mph SE | 0% |
| Monday Night | 59°F | Partly Cloudy | 6 mph N | 0% |
| Tuesday | 80°F | Mostly Sunny | 6 mph SE | 0% |
| Tuesday Night | 59°F | Mostly Clear | 5 mph NE | 1% |
| Wednesday | 80°F | Sunny | 7 mph SSE | 0% |
| Wednesday Night | 59°F | Mostly Clear | 3 to 7 mph NE | 0% |
| Thursday | 82°F | Sunny | 3 to 9 mph SE | 0% |
| Thursday Night | 60°F | Mostly Clear | 8 mph ENE | 0% |
| Friday | 78°F | Mostly Sunny | 8 mph SSE | 1% |
| Friday Night | 55°F | Partly Cloudy | 5 to 8 mph NW | 5% |
| Saturday | 71°F | Mostly Sunny | 3 to 7 mph NW | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Boise City, ID
Last spring frost
May 17
First fall frost
Oct 12
Growing season
147 days
Hardiness zone
7a
Explore more for Boise City, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Boise 7 N, Id (5.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.