Star, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Star, a city in Ada County, Idaho.
Tonight
50°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 10pm, then a slight chance of showers and thunderstorms between 10pm and 3am, then areas of fog. Mostly cloudy, with a low around 50. North wind 1 to 6 mph. Chance of precipitation is 30%.
7-day forecast for Star
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Slight Chance Showers And Thunderstorms | 1 to 6 mph N | 34% |
| Saturday | 78°F | Areas Of Fog then Mostly Sunny | 1 to 7 mph NW | 5% |
| Saturday Night | 50°F | Mostly Clear | 3 mph ENE | 0% |
| Sunday | 82°F | Patchy Fog then Sunny | 3 mph SSE | 0% |
| Sunday Night | 52°F | Mostly Clear | 3 mph NNE | 0% |
| Monday | 84°F | Sunny | 2 mph SSE | 0% |
| Monday Night | 52°F | Partly Cloudy | 0 to 3 mph NNE | 0% |
| Tuesday | 84°F | Sunny | 2 mph WSW | 1% |
| Tuesday Night | 52°F | Mostly Clear | 3 mph ENE | 1% |
| Wednesday | 85°F | Sunny | 0 to 3 mph SSE | 1% |
| Wednesday Night | 52°F | Mostly Clear | 3 mph ENE | 1% |
| Thursday | 88°F | Sunny | 3 to 8 mph SSE | 0% |
| Thursday Night | 55°F | Partly Cloudy | 7 mph ESE | 0% |
| Friday | 86°F | Mostly Sunny | 7 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov) for Star (43.700, -116.490). Updated through the day.
Growing snapshot for Star
Last spring frost
Apr 30
First fall frost
Oct 17
Growing season
168 days
Hardiness zone
7a
More local growing data for Star: nearby ZIP 83669 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Emmett 2 E, Id (9 mi from Star). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.