Basalt, ID Weather & Growing Conditions
This Afternoon
61°F
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms before 3pm, then isolated showers and thunderstorms between 3pm and 5pm. Mostly sunny, with a high near 61. Southwest wind around 8 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 61°F | Scattered Showers And Thunderstorms | 8 mph SW | 28% |
| Tonight | 40°F | Isolated Rain Showers then Partly Cloudy | 0 to 6 mph SE | 19% |
| Sunday | 68°F | Sunny | 3 mph NW | 3% |
| Sunday Night | 41°F | Mostly Clear | 3 mph ENE | 0% |
| Monday | 75°F | Sunny | 5 mph NNE | 0% |
| Monday Night | 44°F | Mostly Clear | 3 mph ENE | 0% |
| Tuesday | 75°F | Mostly Sunny | 6 mph NNE | 1% |
| Tuesday Night | 48°F | Mostly Cloudy | 5 mph SSE | 14% |
| Wednesday | 76°F | Mostly Sunny | 5 mph S | 7% |
| Wednesday Night | 47°F | Mostly Clear | 6 mph SSE | 3% |
| Thursday | 79°F | Sunny | 3 to 7 mph SSE | 2% |
| Thursday Night | 49°F | Mostly Clear | 6 mph SSE | 1% |
| Friday | 79°F | Mostly Sunny | 7 mph SSE | 4% |
| Friday Night | 49°F | Partly Cloudy | 8 mph S | 8% |
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.