Idaho Falls, ID Weather & Growing Conditions
Overnight
32°F
Patchy Fog
Patchy fog. Cloudy. Low around 32, with temperatures rising to around 34 overnight. North northeast wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 32°F | Patchy Fog | 1 mph NNE | 1% |
| Wednesday | 50°F | Patchy Fog then Partly Sunny | 1 to 7 mph SSW | 1% |
| Wednesday Night | 30°F | Areas Of Fog | 2 to 7 mph SSE | 1% |
| Thursday | 48°F | Areas Of Fog then Mostly Cloudy | 5 mph S | 3% |
| Thursday Night | 32°F | Areas Of Fog | 2 to 7 mph SSW | 4% |
| Friday | 47°F | Mostly Sunny | 1 to 6 mph SW | 0% |
| Friday Night | 29°F | Partly Cloudy | 2 mph SE | 0% |
| Saturday | 50°F | Sunny | 2 mph NNE | 0% |
| Saturday Night | 31°F | Partly Cloudy | 2 mph E | 0% |
| Sunday | 57°F | Mostly Sunny | 3 mph S | 0% |
| Sunday Night | 34°F | Partly Cloudy | 1 to 5 mph SSE | 0% |
| Monday | 56°F | Mostly Sunny | 3 mph NNW | 0% |
| Monday Night | 35°F | Mostly Cloudy | 1 mph ESE | 0% |
| Tuesday | 56°F | Mostly Sunny | 3 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Idaho Falls, ID
Last spring frost
May 9
First fall frost
Oct 1
Growing season
142 days
Hardiness zone
5b
Explore more for Idaho Falls, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Idaho Falls - Kifi, Id (6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.