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Blackwater, AZ Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Blackwater, a community in Pinal County, Arizona.

Today
99°F
Sunny
Sunny, with a high near 99. Southwest wind 0 to 5 mph.

7-day forecast for Blackwater

WhenTempForecastWindPrecip
Today 99°F Sunny 0 to 5 mph SW 0%
Tonight 72°F Mostly Clear 0 to 5 mph SSW 0%
Sunday 99°F Sunny 5 mph SSE 0%
Sunday Night 74°F Partly Cloudy 5 mph ESE 0%
Monday 99°F Mostly Sunny 5 mph S 0%
Monday Night 74°F Mostly Clear 0 to 5 mph S 6%
Tuesday 99°F Sunny 0 to 5 mph S 5%
Tuesday Night 76°F Mostly Clear 5 to 10 mph E 5%
Wednesday 100°F Sunny then Slight Chance Showers And Thunderstorms 5 to 10 mph E 14%
Wednesday Night 77°F Slight Chance Showers And Thunderstorms 5 to 15 mph E 19%
Thursday 98°F Slight Chance Showers And Thunderstorms 5 to 15 mph E 23%
Thursday Night 77°F Slight Chance Showers And Thunderstorms 10 to 15 mph E 23%
Friday 98°F Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms 5 to 15 mph SSE 18%
Friday Night 77°F Slight Chance Showers And Thunderstorms then Mostly Clear 5 to 10 mph NE 10%

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 Sep 19, 2026.