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Weather in Casa Grande, AZ · National Weather Service + NOAA

Casa Grande has hot summers

Casa Grande has mild winters and scorching summers, with very little rain. A typical July afternoon reaches 106°, a January night drops to 39°, and snow is almost unheard of. A typical November afternoon reaches 77°, and nights fall to 46°.

Winter 68°/40°Spring 86°/53°Summer 105°/75°Fall 88°/58°
Right now
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Sunrise 8:47 am · sunset 7:33 pm

Getting the latest forecast from the National Weather Service…

What stands out about Casa Grande’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
Hot summersJuly afternoons average 106°, hotter than 100% of U.S. towns.Snow is rareNo measurable snow in a normal year.Warming faster than mostThe last 30 years averaged 1.9° warmer than the 1900s, a bigger shift than 92% of U.S. towns.A dry climateJust 8 inches of rain and melted snow a year, less than 99% of U.S. towns.
A normal year

Where today sits in Casa Grande’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
68° / 40°
Snow is rare
Spring
86° / 53°
Last frost around Feb 5
Summer
105° / 75°
184 days reach 90° in a normal year
Fall now
88° / 58°
First frost around Dec 6
32 daysuntil the usual first frost (Dec 6)
Best months to be outside
FebMarNov
Highs of 62–84° and lows of 40° or more
How much snow does Casa Grande get?Almost none.When is it wettest?August, with 1.3 inches.Is it warmer than it used to be?+1.9° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in Casa Grande.

Town Square →
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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Casa Grande itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Casa Grande, AZ (3 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.