Idaho Falls, ID Weather & Growing Conditions
This Afternoon
62°F
Isolated Showers And Thunderstorms
Isolated showers and thunderstorms before 5pm. Mostly sunny, with a high near 62. Southwest wind around 7 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 62°F | Isolated Showers And Thunderstorms | 7 mph SW | 17% |
| Tonight | 41°F | Isolated Rain Showers | 0 to 6 mph SSE | 22% |
| Sunday | 68°F | Mostly Sunny | 0 to 3 mph NW | 3% |
| Sunday Night | 41°F | Mostly Clear | 2 mph E | 0% |
| Monday | 74°F | Sunny | 5 mph NNE | 0% |
| Monday Night | 45°F | Mostly Clear | 5 mph ENE | 0% |
| Tuesday | 76°F | Mostly Sunny | 5 mph NE | 1% |
| Tuesday Night | 49°F | Slight Chance Showers And Thunderstorms then Slight Chance Light Rain | 5 mph SSE | 17% |
| Wednesday | 76°F | Mostly Sunny | 3 to 7 mph SSW | 8% |
| Wednesday Night | 48°F | Mostly Clear | 3 to 7 mph SSE | 3% |
| Thursday | 80°F | Sunny | 6 mph SSE | 2% |
| Thursday Night | 50°F | Mostly Clear | 7 mph SSE | 1% |
| Friday | 79°F | Mostly Sunny | 5 to 8 mph SSE | 4% |
| Friday Night | 50°F | Partly Cloudy | 9 mph S | 8% |
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 Sep 20, 2026.