Junction City, CA Weather & Growing Conditions
Tonight
37°F
Partly Cloudy
Partly cloudy, with a low around 37. Northeast wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 37°F | Partly Cloudy | 1 mph NE | 0% |
| Wednesday | 53°F | Mostly Sunny | 3 mph WSW | 3% |
| Wednesday Night | 38°F | Partly Cloudy | 2 mph ESE | 3% |
| Thursday | 58°F | Sunny | 0 to 3 mph S | 0% |
| Thursday Night | 46°F | Mostly Clear | 1 to 5 mph NNW | 0% |
| Friday | 64°F | Mostly Sunny | 3 mph W | 0% |
| Friday Night | 48°F | Mostly Clear | 3 mph NNW | 0% |
| Saturday | 66°F | Sunny | 1 to 5 mph E | 0% |
| Saturday Night | 45°F | Partly Cloudy | 3 mph NE | 1% |
| Sunday | 59°F | Mostly Sunny | 1 to 5 mph W | 1% |
| Sunday Night | 44°F | Mostly Cloudy | 2 mph N | 5% |
| Monday | 57°F | Partly Sunny | 3 mph SSE | 10% |
| Monday Night | 44°F | Partly Cloudy then Slight Chance Light Rain | 3 mph NNW | 19% |
| Tuesday | 58°F | Chance Light Rain | 3 mph ESE | 25% |
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 Nov 4, 2026.