Blackwater, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blackwater, a community in Pinal County, Arizona.
Overnight
84°F
Partly Cloudy
Partly cloudy. Low around 84, with temperatures rising to around 87 overnight. East southeast wind around 5 mph.
7-day forecast for Blackwater
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 84°F | Partly Cloudy | 5 mph ESE | 3% |
| Tuesday | 107°F | Sunny | 5 to 15 mph WSW | 4% |
| Tuesday Night | 84°F | Patchy Blowing Dust | 5 to 15 mph SSW | 6% |
| Wednesday | 105°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph WSW | 13% |
| Wednesday Night | 82°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 10 mph S | 13% |
| Thursday | 107°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph WSW | 12% |
| Thursday Night | 83°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 12% |
| Friday | 108°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph WSW | 12% |
| Friday Night | 83°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SSW | 12% |
| Saturday | 109°F | Sunny then Slight Chance Showers And Thunderstorms | 5 mph SW | 14% |
| Saturday Night | 83°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SSW | 14% |
| Sunday | 107°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 32% |
| Sunday Night | 81°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 32% |
| Monday | 103°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 40% |
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 Aug 4, 2026.