Arcata, CA Weather & Growing Conditions
Overnight
68°F
Clear
Clear, with a low around 68. East southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Clear | 3 mph ESE | 0% |
| Tuesday | 88°F | Sunny then Patchy Smoke | 5 mph SE | 0% |
| Tuesday Night | 69°F | Patchy Smoke | 2 to 6 mph ENE | 0% |
| Wednesday | 85°F | Sunny | 0 to 5 mph N | 0% |
| Wednesday Night | 67°F | Clear | 3 mph NNE | 0% |
| Thursday | 84°F | Sunny | 3 mph W | 0% |
| Thursday Night | 67°F | Clear | 3 mph N | 0% |
| Friday | 84°F | Sunny | 5 mph NW | 0% |
| Friday Night | 66°F | Mostly Clear | 5 mph NNE | 0% |
| Saturday | 79°F | Sunny | 2 to 6 mph NNE | 0% |
| Saturday Night | 61°F | Mostly Clear | 2 to 6 mph NNW | 1% |
| Sunday | 74°F | Sunny | 2 to 7 mph NNW | 0% |
| Sunday Night | 58°F | Mostly Clear | 2 to 7 mph N | 0% |
| Monday | 74°F | Sunny | 2 to 7 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Arcata, CA
Last spring frost
Mar 4
First fall frost
Nov 22
Growing season
264 days
Hardiness zone
9b
Explore more for Arcata, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Grizzly Creek Sp, Ca (12.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.