Rialto, CA Weather


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The most pleasant months of the year for Rialto are April, May and November. In Rialto, there are 5 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for Rialto with an average high temperature of 96.0°, which ranks it as warmer than most places in California. Any measurable snowfall is a rare occurance in Rialto. There are few days during the summer when the humidity becomes unpleasant.

Today's Weather - Rialto, CA

2 AM PST

Mostly Clear

52°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
OvernightMostly Clear50° / 81°NE 0 mph
Tuesday NightClear56° / 81°SE 0 to 15 mph
Wednesday NightPartly Cloudy57° / 78°SW 0 to 15 mph
Thursday NightPatchy Fog54° / 75°SW 5 to 15 mph
Friday NightPatchy Fog54° / 81°SW 5 to 15 mph
Saturday NightMostly Clear59° / 85°SW 5 to 15 mph
Sunday NightMostly Clear59° / 81°SW 5 to 15 mph

Weather Highlights

Summer High: the July high is around 95 degrees
Winter Low: the January low is 42
Rain: averages 14 inches of rain a year
Snow: averages 0 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Rialto area is 7.9 (10=best), which means it is more comfortable than most places in California.

7.9 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January68° 42°
February68° 43°
March72° 46°
April76° 49°
May82° 54°
June88° 58°
July95° 62°
August96° 63°
September92° 60°
October83° 53°
November74° 46°
December67° 41°
Hot, Freezing, Rainy, Snowy Days: Rialto
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January0160
February0170
March1060
April3040
May6020
June14010
July25010
August26010
September19010
October8030
November1030
December0250

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

Reviews for Rialto
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I have lived in Rialto my entire life, I am now 26, and I have seen substantial growth in the last 10 years. Mayor Deborah Robertson has done an excellent job making  More

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Rialto has come a long way lots of places to shop and eat catch a movie friendly people  More

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Over 16 years ago

I live in Rialto, about 1 hour outside of Los Angeles, and even though it is cheaper than Los Angeles, the average college graduate cannot afford to stay here. First,  More

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