Lewiston, CA Weather & Growing Conditions
Overnight
64°F
Clear
Clear. Low around 64, with temperatures rising to around 68 overnight. East wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Clear | 5 mph E | 0% |
| Tuesday | 100°F | Sunny | 1 to 7 mph E | 0% |
| Tuesday Night | 67°F | Mostly Clear | 0 to 5 mph SSW | 0% |
| Wednesday | 97°F | Sunny | 0 to 9 mph E | 0% |
| Wednesday Night | 65°F | Clear | 0 to 7 mph SE | 0% |
| Thursday | 97°F | Sunny | 0 to 6 mph E | 0% |
| Thursday Night | 65°F | Clear | 0 to 6 mph SSE | 0% |
| Friday | 99°F | Sunny | 0 to 5 mph E | 0% |
| Friday Night | 65°F | Clear | 1 to 5 mph W | 0% |
| Saturday | 99°F | Sunny | 1 to 7 mph SSW | 0% |
| Saturday Night | 63°F | Clear | 2 to 7 mph W | 0% |
| Sunday | 96°F | Sunny | 1 to 6 mph SSW | 0% |
| Sunday Night | 61°F | Mostly Clear | 2 to 6 mph W | 0% |
| Monday | 92°F | Sunny | 1 to 6 mph NE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lewiston, CA
Last spring frost
Apr 23
First fall frost
Oct 22
Growing season
178 days
Hardiness zone
8b
Explore more for Lewiston, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Trinity Rvr Hatchery, Ca (3.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.