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Meridian, ID Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Meridian, a city in Ada County, Idaho.

Tonight
52°F
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 7pm and 8pm, then a chance of showers and thunderstorms between 8pm and 10pm, then a slight chance of showers and thunderstorms between 10pm and 11pm, then a chance of showers and thunderstorms between 11pm and 1am, then a slight chance of showers and thunderstorms between 1am and 2am. Mostly cloudy, with a low around 52. North northwest wind 2 to 7 mph. Chance of precipitation is 30%.

7-day forecast for Meridian

WhenTempForecastWindPrecip
Tonight 52°F Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms 2 to 7 mph NNW 32%
Saturday 78°F Areas Of Fog then Mostly Sunny 2 to 8 mph NW 5%
Saturday Night 52°F Mostly Clear 1 to 5 mph E 0%
Sunday 82°F Sunny 5 mph SSE 0%
Sunday Night 54°F Mostly Clear 5 mph NNE 0%
Monday 84°F Sunny 3 mph SSE 0%
Monday Night 54°F Partly Cloudy 5 mph NNE 0%
Tuesday 84°F Sunny 5 mph S 1%
Tuesday Night 54°F Mostly Clear 5 mph ENE 1%
Wednesday 85°F Sunny 5 mph SSE 1%
Wednesday Night 55°F Mostly Clear 6 mph ENE 1%
Thursday 88°F Sunny 6 to 12 mph SE 0%
Thursday Night 57°F Partly Cloudy 8 mph ESE 0%
Friday 86°F Mostly Sunny 6 to 9 mph S 0%

Forecast source: National Weather Service (api.weather.gov) for Meridian (43.611, -116.401). Updated through the day.

Growing snapshot for Meridian

Last spring frost
Apr 24
First fall frost
Oct 21
Growing season
179 days
Hardiness zone
7a

More local growing data for Meridian: nearby ZIP 83642 weather · frost dates · planting calendar · Idaho frost dates

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Climate data from the nearest NOAA station, Boise Air Terminal, Id (8 mi from Meridian). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.