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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

WhenTempForecastWindPrecip
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

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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.