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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
Nearby towns & communities
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.