Lewiston, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lewiston, a city in Nez Perce County, Idaho.
Tonight
38°F
Mostly Cloudy
Mostly cloudy, with a low around 38. Southwest wind around 2 mph.
7-day forecast for Lewiston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 38°F | Mostly Cloudy | 2 mph SW | 3% |
| Wednesday | 54°F | Sunny | 2 mph SE | 1% |
| Wednesday Night | 40°F | Mostly Cloudy then Rain Showers Likely | 3 mph SE | 55% |
| Thursday | 55°F | Rain Showers Likely then Partly Sunny | 3 mph SW | 55% |
| Thursday Night | 37°F | Partly Cloudy | 1 to 8 mph E | 2% |
| Friday | 56°F | Mostly Cloudy | 2 to 8 mph E | 5% |
| Friday Night | 41°F | Mostly Cloudy | 2 to 7 mph SE | 5% |
| Saturday | 62°F | Partly Sunny | 3 to 7 mph SE | 2% |
| Saturday Night | 43°F | Mostly Cloudy | 3 to 12 mph SE | 7% |
| Sunday | 61°F | Mostly Cloudy | 2 to 8 mph SW | 11% |
| Sunday Night | 42°F | Mostly Cloudy | 5 mph S | 10% |
| Monday | 57°F | Mostly Cloudy then Slight Chance Rain Showers | 1 to 5 mph E | 15% |
| Monday Night | 42°F | Slight Chance Rain Showers then Mostly Cloudy | 1 to 5 mph S | 15% |
| Tuesday | 60°F | Slight Chance Rain Showers | 1 to 6 mph SE | 24% |
Forecast source: National Weather Service (api.weather.gov) for Lewiston (46.393, -116.993). Updated through the day.
Growing snapshot for Lewiston
Last spring frost
Apr 6
First fall frost
Oct 26
Growing season
200 days
Hardiness zone
7b
More local growing data for Lewiston: nearby ZIP 83501 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lewiston Nez Perce Co Ap, Id (9.5 mi from Lewiston). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.