Penn Valley, CA Weather. 1  Current weather conditions temporarily unavailable! 2  Source: The Penn Valley, CA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency).
Location of Rialto on a map. Rialto is a city found in California, The United States Of America. It is located 34.11 latitude and -117.37 longitude and it is situated at elevation 386 meters above sea level. Rialto has a population of 99,171 making it the 74th biggest city in California.
The following Cities are next to Rialto, CA: 1  Jurupa Valley is 9 miles southwest of Rialto, CA. 2  San Bernardino is 5.8 miles east of Rialto, CA. 3  Fontana is 4.2 miles west of Rialto, CA.  Colton is 5.4 miles southeast of Rialto, 1  CA. Bloomington is 3.7 miles south of Rialto,  CA.