Basalt, ID Weather & Growing Conditions
Overnight
45°F
Slight Chance Light Rain
A slight chance of rain after 2am. Mostly cloudy. Low around 45, with temperatures rising to around 47 overnight. South wind around 3 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Slight Chance Light Rain | 3 mph S | 23% |
| Saturday | 61°F | Chance Light Rain then Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 29% |
| Saturday Night | 40°F | Partly Cloudy | 0 to 5 mph SSE | 8% |
| Sunday | 68°F | Mostly Sunny | 3 mph WSW | 1% |
| Sunday Night | 41°F | Mostly Clear | 3 mph E | 0% |
| Monday | 74°F | Sunny | 5 mph NNE | 0% |
| Monday Night | 44°F | Mostly Clear | 3 mph ENE | 0% |
| Tuesday | 75°F | Mostly Sunny | 5 mph NNE | 1% |
| Tuesday Night | 46°F | Partly Cloudy | 3 mph ESE | 13% |
| Wednesday | 76°F | Mostly Sunny | 5 mph SSE | 8% |
| Wednesday Night | 46°F | Mostly Clear | 5 mph SE | 4% |
| Thursday | 79°F | Sunny | 6 mph SSE | 2% |
| Thursday Night | 48°F | Partly Cloudy | 6 mph SE | 3% |
| Friday | 79°F | Mostly Sunny | 7 mph SE | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Basalt, ID
Last spring frost
May 5
First fall frost
Oct 3
Growing season
149 days
Hardiness zone
5b
Explore more for Basalt, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Blackfoot Fire Dept, Id (12.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.