Idaho Falls, ID Weather & Growing Conditions
Today
81°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 81. West wind 2 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Patchy Smoke | 2 to 9 mph W | 0% |
| Tonight | 50°F | Areas Of Smoke | 3 to 8 mph SSW | 0% |
| Wednesday | 85°F | Areas Of Smoke | 2 to 7 mph SW | 0% |
| Wednesday Night | 53°F | Mostly Clear | 7 mph S | 0% |
| Thursday | 92°F | Sunny | 3 to 8 mph SW | 0% |
| Thursday Night | 57°F | Clear | 8 mph S | 0% |
| Friday | 94°F | Sunny | 2 to 7 mph S | 0% |
| Friday Night | 60°F | Mostly Clear | 6 to 14 mph SW | 0% |
| Saturday | 94°F | Sunny | 3 to 12 mph SW | 0% |
| Saturday Night | 61°F | Mostly Clear | 5 to 15 mph SSW | 0% |
| Sunday | 93°F | Sunny | 3 to 16 mph SSW | 0% |
| Sunday Night | 61°F | Mostly Clear | 7 to 18 mph SSW | 0% |
| Monday | 92°F | Sunny | 5 to 15 mph SW | 1% |
| Monday Night | 59°F | Mostly Clear | 7 to 16 mph SSW | 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 Aug 4, 2026.