Boise City, ID Weather & Growing Conditions
Tonight
54°F
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 1am, then a slight chance of showers and thunderstorms between 1am and 2am. Mostly cloudy, with a low around 54. North northwest wind 1 to 5 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 1 to 5 mph NNW | 39% |
| Saturday | 77°F | Mostly Sunny | 2 to 8 mph WNW | 7% |
| Saturday Night | 54°F | Mostly Clear | 5 mph NE | 0% |
| Sunday | 81°F | Sunny | 5 mph SSE | 0% |
| Sunday Night | 56°F | Mostly Clear | 5 mph NNE | 0% |
| Monday | 83°F | Sunny | 3 mph SE | 0% |
| Monday Night | 57°F | Partly Cloudy | 5 mph NNE | 0% |
| Tuesday | 84°F | Mostly Sunny | 5 mph SSE | 1% |
| Tuesday Night | 56°F | Mostly Clear | 6 mph NNE | 1% |
| Wednesday | 85°F | Sunny | 6 mph SE | 0% |
| Wednesday Night | 58°F | Mostly Clear | 5 to 8 mph E | 1% |
| Thursday | 88°F | Sunny | 8 to 12 mph SE | 0% |
| Thursday Night | 60°F | Partly Cloudy | 12 mph SE | 0% |
| Friday | 86°F | Mostly Sunny | 9 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 24
First fall frost
Oct 21
Growing season
179 days
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 (3.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.