Basalt, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Basalt, a city in Bingham County, Idaho.
Overnight
47°F
Patchy Smoke
Patchy smoke. Mostly clear. Low around 47, with temperatures rising to around 50 overnight. Northwest wind around 3 mph.
7-day forecast for Basalt
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Patchy Smoke | 3 mph NW | 0% |
| Tuesday | 81°F | Patchy Smoke | 2 to 9 mph W | 0% |
| Tuesday Night | 50°F | Areas Of Smoke | 3 to 8 mph S | 0% |
| Wednesday | 85°F | Areas Of Smoke | 3 to 7 mph SSW | 0% |
| Wednesday Night | 53°F | Mostly Clear | 7 mph S | 0% |
| Thursday | 92°F | Sunny | 3 to 8 mph SSW | 0% |
| Thursday Night | 57°F | Clear | 7 mph S | 0% |
| Friday | 94°F | Sunny | 2 to 7 mph SE | 0% |
| Friday Night | 59°F | Clear | 5 to 13 mph SSW | 0% |
| Saturday | 94°F | Sunny | 2 to 10 mph SW | 0% |
| Saturday Night | 61°F | Mostly Clear | 5 to 15 mph SSW | 0% |
| Sunday | 92°F | Sunny | 3 to 16 mph SSW | 0% |
| Sunday Night | 60°F | Mostly Clear | 5 to 17 mph SSW | 0% |
| Monday | 91°F | Sunny | 5 to 14 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Basalt (43.314, -112.165). Updated through the day.
Growing snapshot for Basalt
Last spring frost
May 5
First fall frost
Oct 3
Growing season
149 days
Hardiness zone
5b
More local growing data for Basalt: nearby ZIP 83218 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Blackfoot Fire Dept, Id (12.6 mi from Basalt). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.