Nampa, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Nampa, a city in Canyon County, Idaho.
This Afternoon
74°F
Mostly Cloudy
Mostly cloudy, with a high near 74. North wind around 6 mph.
7-day forecast for Nampa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Mostly Cloudy | 6 mph N | 8% |
| Tonight | 54°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 to 6 mph NNW | 25% |
| Saturday | 78°F | Mostly Sunny | 2 to 8 mph NW | 4% |
| Saturday Night | 53°F | Mostly Clear | 3 mph SE | 0% |
| Sunday | 81°F | Sunny | 5 mph SE | 0% |
| Sunday Night | 54°F | Mostly Clear | 3 mph E | 0% |
| Monday | 83°F | Sunny | 5 mph SE | 0% |
| Monday Night | 55°F | Partly Cloudy | 1 to 5 mph WNW | 0% |
| Tuesday | 84°F | Sunny | 3 mph WSW | 1% |
| Tuesday Night | 54°F | Mostly Clear | 5 mph ENE | 1% |
| Wednesday | 84°F | Sunny | 5 mph S | 1% |
| Wednesday Night | 55°F | Mostly Clear | 2 to 6 mph ENE | 1% |
| Thursday | 88°F | Sunny | 8 to 13 mph SE | 0% |
| Thursday Night | 58°F | Partly Cloudy | 8 mph SE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Nampa (43.586, -116.566). Updated through the day.
Growing snapshot for Nampa
Last spring frost
Apr 29
First fall frost
Oct 13
Growing season
164 days
Hardiness zone
7a
More local growing data for Nampa: nearby ZIP 83687 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Nampa Sugar Factory, Id (2.3 mi from Nampa). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.