Rialto, CA Weather Forecast
San Bernardino County, California
Live radar, warnings and storm tracking for Rialto, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Rialto
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Rialto, CA at a glance
Rialto is home to about 103,391 people in San Bernardino County, across 24 square miles. It ranks 67th by population of 450 places in California with a forecast here. The nearest neighbour with its own forecast is Fontana, 4 miles away.
- County
- San Bernardino County
- Population
- 103,391 2023 est.
- Land area
- 24 sq mi
- People per sq mi
- 4,292
- Forecast point
- 34.1174°N, 117.3892°W
How well can the network see Rialto?
The nearest Doppler radar is KSOX (Santa Ana Mountains, CA), to the SW. Its lowest scan passes about 1,500 ft above Rialto. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Rialto show up clearly. Rialto is closer to its radar than 78% of US cities.
The closest weather station is KSBD (San Bernardino Intl). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Rialto
- Fontana, CA4 mi
- San Bernardino, CA6 mi
- Colton, CA6 mi
- Grand Terrace, CA7 mi
- Jurupa Valley, CA9 mi
- Loma Linda, CA10 mi
- Rancho Cucamonga, CA10 mi
- Riverside, CA12 mi
Elsewhere in California
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