Meridian, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Meridian, a city in Ada County, Idaho.
Tonight
36°F
Slight Chance Rain Showers then Mostly Cloudy
A slight chance of rain showers between 11pm and midnight. Mostly cloudy, with a low around 36. North northwest wind around 3 mph. Chance of precipitation is 20%.
7-day forecast for Meridian
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 36°F | Slight Chance Rain Showers then Mostly Cloudy | 3 mph NNW | 15% |
| Wednesday | 59°F | Sunny | 2 to 6 mph NW | 2% |
| Wednesday Night | 36°F | Partly Cloudy | 5 mph E | 12% |
| Thursday | 57°F | Partly Sunny | 5 mph NW | 12% |
| Thursday Night | 32°F | Mostly Clear | 5 mph ENE | 0% |
| Friday | 59°F | Mostly Sunny | 3 mph SE | 1% |
| Friday Night | 36°F | Partly Cloudy | 2 mph E | 0% |
| Saturday | 64°F | Sunny | 2 to 9 mph SE | 0% |
| Saturday Night | 41°F | Partly Cloudy | 7 to 10 mph SE | 0% |
| Sunday | 65°F | Mostly Sunny | 5 to 10 mph S | 0% |
| Sunday Night | 39°F | Mostly Cloudy | 5 mph NE | 0% |
| Monday | 64°F | Partly Sunny | 3 mph S | 4% |
| Monday Night | 39°F | Partly Cloudy | 3 mph E | 5% |
| Tuesday | 65°F | Mostly Sunny | 3 mph SW | 8% |
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 Nov 4, 2026.