Williamson, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Williamson, a community in Yavapai County, Arizona.
Today
97°F
Sunny
Sunny. High near 97, with temperatures falling to around 94 in the afternoon. Southwest wind 3 to 15 mph.
7-day forecast for Williamson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 97°F | Sunny | 3 to 15 mph SW | 3% |
| Tonight | 68°F | Mostly Clear | 3 to 14 mph SW | 3% |
| Wednesday | 95°F | Slight Chance Showers And Thunderstorms | 2 to 12 mph SW | 17% |
| Wednesday Night | 67°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 2 to 12 mph SW | 12% |
| Thursday | 95°F | Chance Showers And Thunderstorms | 1 to 8 mph W | 43% |
| Thursday Night | 66°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 to 8 mph W | 22% |
| Friday | 97°F | Slight Chance Showers And Thunderstorms | 1 to 8 mph W | 18% |
| Friday Night | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 8 mph SW | 18% |
| Saturday | 97°F | Slight Chance Showers And Thunderstorms | 1 to 8 mph W | 21% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 10 mph SW | 21% |
| Sunday | 94°F | Chance Showers And Thunderstorms | 2 to 10 mph SW | 36% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms then Mostly Cloudy | 3 to 10 mph SW | 36% |
| Monday | 90°F | Chance Showers And Thunderstorms | 3 to 10 mph SW | 32% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 2 to 9 mph SW | 32% |
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 Aug 4, 2026.