Idaho Falls, ID Weather & Growing Conditions
Today
81°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 81. West southwest wind 3 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Areas Of Smoke | 3 to 9 mph WSW | 0% |
| Tonight | 49°F | Areas Of Smoke | 5 to 9 mph WSW | 0% |
| Wednesday | 85°F | Areas Of Smoke | 3 to 8 mph SW | 0% |
| Wednesday Night | 52°F | Mostly Clear | 5 to 8 mph S | 0% |
| Thursday | 92°F | Sunny | 3 to 8 mph NW | 0% |
| Thursday Night | 56°F | Mostly Clear | 6 to 9 mph SSW | 0% |
| Friday | 96°F | Sunny | 3 to 7 mph N | 0% |
| Friday Night | 59°F | Mostly Clear | 6 to 16 mph SW | 0% |
| Saturday | 95°F | Sunny | 3 to 12 mph WNW | 0% |
| Saturday Night | 61°F | Mostly Clear | 6 to 18 mph SW | 0% |
| Sunday | 93°F | Sunny | 5 to 17 mph WSW | 0% |
| Sunday Night | 60°F | Mostly Clear | 7 to 22 mph SW | 1% |
| Monday | 92°F | Sunny | 5 to 16 mph WSW | 1% |
| Monday Night | 59°F | Mostly Clear | 7 to 20 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Idaho Falls, ID
Last spring frost
May 23
First fall frost
Sep 20
Growing season
114 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 Fanning Fld, Id (5.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.