Poston, AZ Weather & Growing Conditions
Tonight
52°F
Mostly Clear
Mostly clear, with a low around 52. East wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear | 0 mph | 0% |
| Wednesday | 79°F | Sunny | 0 to 5 mph N | 0% |
| Wednesday Night | 50°F | Clear | 0 to 5 mph N | 0% |
| Thursday | 79°F | Sunny | 5 mph N | 0% |
| Thursday Night | 52°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Friday | 82°F | Sunny | 0 to 10 mph N | 0% |
| Friday Night | 52°F | Clear | 5 to 10 mph N | 0% |
| Saturday | 83°F | Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 53°F | Mostly Clear | 5 mph N | 0% |
| Sunday | 84°F | Sunny | 0 to 5 mph NNE | 1% |
| Sunday Night | 55°F | Partly Cloudy | 0 to 5 mph NNE | 1% |
| Monday | 83°F | Mostly Sunny | 0 to 5 mph NE | 1% |
| Monday Night | 55°F | Mostly Clear | 0 mph | 2% |
| Tuesday | 83°F | Sunny | 0 to 5 mph NNE | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Poston, AZ
Last spring frost
Jan 12
First fall frost
Dec 19
Growing season
338 days
Hardiness zone
9a
Explore more for Poston, AZ: full frost dates · planting calendar · Arizona frost dates
Climate data from the nearest NOAA station, Parker, Az (14.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.