Weather South Fontana today

sunrise 6:03 am
sunset 7:31 pm

HOURLY

Weather forecast South Fontana April 28, 2026

From morning untill noon partly cloudy, later morning initially partly cloudy, later overcast, in the afternoon initially overcast, later cloudy. The highest temperature 22 °C. At night overcast. The lowest temperature 11 °C.

Interactive map weather California, USA

GPS: 34.0628; -117.4889

altitude: 306 m
local time:

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Weather forecast South Fontana, California, USA extended forecast

Time			Precip.	Wind	Pressure	Humidity	Dew	total	Fog	Low	Middle	High
Today, Tuesday 04/28/2026
5 AM 8 AM	partly cloudy	9 °C 7 °C	0.0 mm	0.3 m/s 1 km/h north	1016 hPa	67 %	3 °C	36 %	0%	0%	0%	36%
11 AM 2 PM	overcast	16 °C 15 °C	0.0 mm	1.2 m/s 4 km/h south-southwest	1016 hPa	47 %	5 °C	100 %	0%	0%	0%	100%
5 PM 8 PM	cloudy	22 °C 20 °C	0.0 mm	4.2 m/s 15 km/h west-southwest	1012 hPa	35 %	5 °C	68 %	0%	0%	0%	68%
11 PM 2 AM	overcast	14 °C 13 °C	0.0 mm	1.4 m/s 5 km/h west	1015 hPa	71 %	8 °C	100 %	0%	3%	73%	100%
Tomorrow, Wednesday 04/29/2026
5 AM 8 AM	overcast	11 °C 11 °C	0.0 mm	1.3 m/s 5 km/h west-northwest	1015 hPa	89 %	9 °C	96 %	0%	69%	27%	87%
11 AM 2 PM	cloudy	17 °C 16 °C	0.0 mm	1.3 m/s 5 km/h southwest	1016 hPa	56 %	8 °C	64 %	0%	64%	0%	0%
5 PM 8 PM	cloudy	20 °C 19 °C	0.0 mm	4.1 m/s 15 km/h southwest	1013 hPa	44 %	7 °C	38 %	0%	36%	8%	0%
11 PM 2 AM	clear	13 °C 13 °C	0.0 mm	2.0 m/s 7 km/h west-northwest	1016 hPa	79 %	9 °C	7 %	0%	6%	0%	0%

South Fontana, California, USA - information

State: California, USA

GPS coordinates: 34.0628; -117.4889

Time zone: America / Los Angeles time difference in hours with time in US is -9 hours

Altitude: 306 m
The administrative part:

California, Sacramento
San Bernardino County, San Bernardino

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Weather South Fontana, California, USA. Weather forecast South Fontana.

South Fontana - weather nearby - bigger cities

Fontana, 3.7 km
Bloomington, 5.3 km
Rubidoux, 6.6 km
Rancho Cucamonga, 6.7 km
Rialto, 7.4 km
Eastvale, 8.1 km

Ontario, 9.3 km
Upland, 9.4 km
Norco, 9.7 km
Colton, 10 km
Montclair, California, 12 km
Chino, 12 km

South Fontana - weather nearby - the closest place

Declez, 0.3 km
Declezville, 1.3 km
Southridge Village, 1.5 km
Kaiser, 2.1 km
Jurupa Mountains, 2.8 km
Johnson Canyon, 2.9 km

Mount Jurupa, 3.4 km
Stalder, 3.5 km
Glen Avon, 3.5 km
Rochester, 3.9 km
Henshaw, 4.4 km
Champagne, 4.7 km

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Data source

Weather forecast for South Fontana is supplied by MET Norway Norwegian Meteorological Institute and the NRK.

Feels like

To calculate the perceived temperature, we use the Australian Apparent Temperature (AAT) model, which is designed for year-round calculations and takes air humidity into account in addition to temperature and wind speed.

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Astronomical information South Fontana

data are always in the local time

Sun and light

April 28, 2026

Sunrise:	Sunset:
6:03 am	7:31 pm
Noon:	Length of day:
12:47 pm	13:28
Start of civil twilight*:	End of civil twilight*:
5:36 am	7:58 pm
Start of nautical twilight*:	End of nautical twilight*:
5:05 am	8:30 pm
Start of astronomical twilight*:	End of astronomical twilight*:
4:32 am	9:03 pm
* What is Twilight?

Moon and moon phases

Moonrise:	Moonset:
04/27/2026 4:02 pm	04/28/2026 4:18 am
Next new moon:	Next full moon:
05/16/2026	05/01/2026