Boise City, ID Weather & Growing Conditions
Tonight
52°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms between 1am and 3am. Mostly cloudy, with a low around 52. North wind around 7 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Chance Showers And Thunderstorms | 7 mph N | 42% |
| Saturday | 68°F | Mostly Sunny | 3 to 12 mph NW | 8% |
| Saturday Night | 52°F | Mostly Clear | 8 mph NNE | 0% |
| Sunday | 73°F | Sunny | 8 mph SE | 0% |
| Sunday Night | 55°F | Mostly Clear | 5 to 9 mph N | 0% |
| Monday | 75°F | Sunny | 5 to 9 mph SW | 0% |
| Monday Night | 56°F | Partly Cloudy | 6 mph NNE | 0% |
| Tuesday | 76°F | Mostly Sunny | 7 mph ENE | 1% |
| Tuesday Night | 55°F | Mostly Clear | 7 mph NNE | 1% |
| Wednesday | 77°F | Sunny | 8 mph SSE | 0% |
| Wednesday Night | 56°F | Mostly Clear | 6 to 12 mph ENE | 1% |
| Thursday | 80°F | Sunny | 13 mph SE | 0% |
| Thursday Night | 60°F | Partly Cloudy | 9 to 14 mph ESE | 0% |
| Friday | 78°F | Mostly Sunny | 12 mph SSE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Boise City, ID
Last spring frost
Apr 30
First fall frost
Oct 22
Growing season
173 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 Lucky Peak Dam, Id (6.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.