Lewiston, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lewiston, a city in Cache County, Utah.
This Afternoon
52°F
Mostly Sunny
Mostly sunny. High near 52, with temperatures falling to around 49 in the afternoon. North northwest wind around 2 mph.
7-day forecast for Lewiston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 52°F | Mostly Sunny | 2 mph NNW | 0% |
| Tonight | 31°F | Mostly Cloudy | 3 mph NE | 3% |
| Wednesday | 54°F | Mostly Cloudy | 2 mph NNE | 9% |
| Wednesday Night | 28°F | Areas Of Fog | 2 mph NNE | 5% |
| Thursday | 51°F | Areas Of Fog then Slight Chance Light Rain | 2 mph SW | 20% |
| Thursday Night | 28°F | Slight Chance Light Rain then Areas Of Fog | 1 mph NE | 20% |
| Friday | 52°F | Areas Of Fog then Mostly Sunny | 2 mph WNW | 1% |
| Friday Night | 28°F | Partly Cloudy | 2 mph E | 1% |
| Saturday | 56°F | Sunny | 1 mph ENE | 0% |
| Saturday Night | 31°F | Mostly Clear | 1 mph E | 0% |
| Sunday | 59°F | Sunny | 3 mph SSE | 0% |
| Sunday Night | 33°F | Partly Cloudy | 1 mph ESE | 1% |
| Monday | 60°F | Mostly Sunny | 1 mph SSE | 1% |
| Monday Night | 35°F | Partly Cloudy | 1 mph ESE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Lewiston (41.968, -111.886). Updated through the day.
Growing snapshot for Lewiston
Last spring frost
May 11
First fall frost
Oct 5
Growing season
143 days
Hardiness zone
6a
More local growing data for Lewiston: nearby ZIP 84320 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Amalga
Avon
Benson
Cache
Clarkston
Cornish
Hyde Park
Hyrum
Logan
Mendon
Millville
Newton
Nibley
North Logan
Paradise
Peter
Providence
Richmond
River Heights
Smithfield
Trenton
Wellsville
Climate data from the nearest NOAA station, Richmond, Ut (3.9 mi from Lewiston). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.