Blackwater, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blackwater, a community in Pinal County, Arizona.
Tonight
50°F
Partly Cloudy
Partly cloudy. Low around 50, with temperatures rising to around 52 overnight. East wind 0 to 5 mph.
7-day forecast for Blackwater
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Partly Cloudy | 0 to 5 mph E | 0% |
| Wednesday | 75°F | Sunny | 0 to 5 mph S | 0% |
| Wednesday Night | 50°F | Mostly Clear | 0 mph | 0% |
| Thursday | 77°F | Sunny | 0 to 5 mph NE | 0% |
| Thursday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Friday | 78°F | Sunny | 0 to 5 mph NNE | 1% |
| Friday Night | 54°F | Mostly Clear | 5 mph NNE | 1% |
| Saturday | 80°F | Sunny | 5 to 10 mph NE | 0% |
| Saturday Night | 55°F | Mostly Clear | 5 to 10 mph ENE | 1% |
| Sunday | 80°F | Sunny | 10 to 15 mph E | 4% |
| Sunday Night | 55°F | Partly Cloudy | 10 mph E | 8% |
| Monday | 80°F | Mostly Sunny | 5 to 10 mph ENE | 8% |
| Monday Night | 55°F | Partly Cloudy | 0 to 5 mph ENE | 2% |
| Tuesday | 79°F | Sunny | 0 to 5 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Blackwater (33.040, -111.580). Updated through the day.
Growing snapshot for Blackwater
Last spring frost
Feb 17
First fall frost
Nov 29
Growing season
284 days
Hardiness zone
9a
More local growing data for Blackwater: nearby ZIP 85128 weather · frost dates · planting calendar · Arizona frost dates
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Climate data from the nearest NOAA station, Casa Grande Nm, Az (2.7 mi from Blackwater). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.