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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
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.