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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.

Overnight
53°F
Isolated Showers And Thunderstorms
Isolated showers and thunderstorms before 3am. Mostly cloudy, with a low around 53. Northwest wind around 3 mph. Chance of precipitation is 20%.

7-day forecast for Meridian

WhenTempForecastWindPrecip
Overnight 53°F Isolated Showers And Thunderstorms 3 mph NW 18%
Saturday 77°F Mostly Sunny 2 to 7 mph NW 9%
Saturday Night 52°F Mostly Clear 1 to 7 mph SW 3%
Sunday 81°F Sunny 5 mph S 1%
Sunday Night 53°F Mostly Clear 1 to 5 mph SW 0%
Monday 84°F Sunny 5 mph SSE 0%
Monday Night 55°F Partly Cloudy 2 to 6 mph W 0%
Tuesday 85°F Sunny 3 mph SW 0%
Tuesday Night 53°F Partly Cloudy 5 mph NNE 2%
Wednesday 86°F Sunny 3 to 7 mph SSE 0%
Wednesday Night 54°F Mostly Clear 6 mph E 0%
Thursday 87°F Sunny 5 to 10 mph SSE 0%
Thursday Night 55°F Partly Cloudy 7 mph E 2%
Friday 84°F Mostly Sunny 8 mph S 2%

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.