Williamson, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Williamson, a community in Yavapai County, Arizona.
This Afternoon
63°F
Partly Sunny
Partly sunny. High near 63, with temperatures falling to around 61 in the afternoon. East wind around 2 mph.
7-day forecast for Williamson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Partly Sunny | 2 mph E | 0% |
| Tonight | 38°F | Partly Cloudy | 6 mph S | 0% |
| Wednesday | 63°F | Sunny | 3 to 8 mph W | 0% |
| Wednesday Night | 34°F | Clear | 6 mph SW | 0% |
| Thursday | 63°F | Sunny | 3 mph N | 0% |
| Thursday Night | 35°F | Partly Cloudy | 5 mph S | 0% |
| Friday | 64°F | Sunny | 6 mph NE | 0% |
| Friday Night | 35°F | Mostly Clear | 5 to 8 mph NE | 0% |
| Saturday | 65°F | Sunny | 3 to 8 mph NE | 0% |
| Saturday Night | 36°F | Clear | 6 mph NE | 0% |
| Sunday | 67°F | Sunny | 0 to 5 mph NE | 3% |
| Sunday Night | 40°F | Partly Cloudy | 2 mph E | 3% |
| Monday | 67°F | Mostly Sunny | 2 mph NW | 6% |
| Monday Night | 41°F | Partly Cloudy | 0 mph | 4% |
Forecast source: National Weather Service (api.weather.gov) for Williamson (34.708, -112.534). Updated through the day.
Growing snapshot for Williamson
Last spring frost
Apr 27
First fall frost
Oct 24
Growing season
178 days
Hardiness zone
8a
More local growing data for Williamson: nearby ZIP 86323 weather · frost dates · planting calendar · Arizona frost dates
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Climate data from the nearest NOAA station, Chino Valley, Az (3 mi from Williamson). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.