Junction City, CA Weather & Growing Conditions
Tonight
56°F
Clear
Clear, with a low around 56. Northeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Clear | 5 mph NE | 0% |
| Saturday | 79°F | Sunny | 3 mph WSW | 0% |
| Saturday Night | 59°F | Partly Cloudy | 3 mph N | 0% |
| Sunday | 80°F | Mostly Sunny | 2 to 6 mph ENE | 0% |
| Sunday Night | 60°F | Partly Cloudy | 2 to 6 mph NNE | 0% |
| Monday | 82°F | Sunny | 2 to 7 mph SW | 0% |
| Monday Night | 59°F | Mostly Clear | 2 to 7 mph NNW | 0% |
| Tuesday | 81°F | Sunny | 2 to 8 mph WNW | 0% |
| Tuesday Night | 57°F | Mostly Clear | 2 to 8 mph NW | 0% |
| Wednesday | 80°F | Sunny | 2 to 7 mph WNW | 0% |
| Wednesday Night | 58°F | Partly Cloudy | 2 to 7 mph NW | 0% |
| Thursday | 79°F | Sunny | 2 to 8 mph SW | 1% |
| Thursday Night | 56°F | Partly Cloudy | 3 to 8 mph NW | 2% |
| Friday | 73°F | Mostly Sunny | 2 to 8 mph WSW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Junction City, CA
Last spring frost
May 3
First fall frost
Oct 11
Growing season
159 days
Hardiness zone
8b
Explore more for Junction City, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Weaverville, Ca (7.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.