Harman US

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

WhenTempForecastWindPrecip
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.