Fontana, CA Weather Forecast
San Bernardino County, California
Live radar, warnings and storm tracking for Fontana, 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 Fontana
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Fontana, CA at a glance
Fontana is home to about 215,465 people in San Bernardino County, across 43 square miles. It ranks 20th by population of 450 places in California with a forecast here. The nearest neighbour with its own forecast is Rialto, 4 miles away.
- County
- San Bernardino County
- Population
- 215,465 2023 est.
- Land area
- 43 sq mi
- People per sq mi
- 4,979
- Forecast point
- 34.1097°N, 117.4629°W
How well can the network see Fontana?
The nearest Doppler radar is KSOX (Santa Ana Mountains, CA), to the SSW. Its lowest scan passes about 1,300 ft above Fontana. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Fontana show up clearly. Fontana is closer to its radar than 81% of US cities.
The closest weather station is KONT (Ontario Intl). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Fontana
- Rialto, CA4 mi
- Rancho Cucamonga, CA6 mi
- Jurupa Valley, CA7 mi
- Colton, CA9 mi
- Ontario, CA10 mi
- San Bernardino, CA10 mi
- Grand Terrace, CA10 mi
- Upland, CA11 mi
Elsewhere in California
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