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 2am. Mostly cloudy, with a low around 52. North northwest wind around 2 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Chance Showers And Thunderstorms | 2 mph NNW | 30% |
| Saturday | 78°F | Patchy Fog then Mostly Sunny | 2 to 8 mph NW | 5% |
| Saturday Night | 52°F | Mostly Clear | 1 to 5 mph ENE | 0% |
| Sunday | 82°F | Sunny | 5 mph SSE | 0% |
| Sunday Night | 54°F | Mostly Clear | 3 mph NNE | 0% |
| Monday | 84°F | Sunny | 3 mph SSE | 0% |
| Monday Night | 55°F | Partly Cloudy | 1 to 5 mph NNE | 0% |
| Tuesday | 84°F | Sunny | 5 mph S | 1% |
| Tuesday Night | 54°F | Mostly Clear | 5 mph NE | 1% |
| Wednesday | 85°F | Sunny | 5 mph SSE | 1% |
| Wednesday Night | 55°F | Mostly Clear | 5 mph E | 1% |
| Thursday | 88°F | Sunny | 6 to 10 mph SE | 0% |
| Thursday Night | 58°F | Partly Cloudy | 8 mph ESE | 0% |
| Friday | 86°F | Mostly Sunny | 8 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Boise City, ID
Last spring frost
Apr 24
First fall frost
Oct 21
Growing season
179 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 Air Terminal, Id (7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.