Caldwell, ID Weather & Growing Conditions
Today
94°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 94. North northwest wind 1 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Areas Of Smoke | 1 to 5 mph NNW | 0% |
| Tonight | 56°F | Areas Of Smoke | 1 to 6 mph ESE | 0% |
| Thursday | 99°F | Areas Of Smoke | 1 to 5 mph WSW | 0% |
| Thursday Night | 61°F | Areas Of Smoke then Mostly Clear | 1 to 5 mph N | 0% |
| Friday | 102°F | Sunny | 1 to 5 mph NW | 0% |
| Friday Night | 64°F | Mostly Clear | 2 to 7 mph NW | 0% |
| Saturday | 101°F | Sunny | 2 to 7 mph NW | 0% |
| Saturday Night | 63°F | Mostly Clear | 5 to 8 mph NW | 0% |
| Sunday | 98°F | Sunny | 9 mph NW | 0% |
| Sunday Night | 61°F | Mostly Clear | 5 to 8 mph NNW | 0% |
| Monday | 96°F | Sunny | 5 to 8 mph NW | 0% |
| Monday Night | 61°F | Mostly Clear | 5 to 8 mph NW | 0% |
| Tuesday | 96°F | Sunny | 7 mph NW | 0% |
| Tuesday Night | 61°F | Partly Cloudy | 5 to 8 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Caldwell, ID
Last spring frost
Apr 29
First fall frost
Oct 13
Growing season
164 days
Hardiness zone
7a
Explore more for Caldwell, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Nampa Sugar Factory, Id (5.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 5, 2026.