As of 20:52 PDT

Fontana, CA weather in May

84°

Fontana, Saturday, 8 August, 20:52

Mostly clear. Feels like 83°. High 96°, low 68°.

Pressure29.88 inHg

Wind3 mph W

Humidity37%

Visibility6.2 mi

Dew point55°

See detailed hourly forecast

In May, Fontana, CA averages a high of 77° and a low of 53.4°. About 0.6 inches of precipitation fall over the month (3 wet days). The record high is 103.6° (1984) and the record low 38.1° (1967). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	75.2°	51.4°	7%	91.9° (2014)	38.1° (1967)
2	76.3°	51.4°	7%	96.6° (2004)	41.5° (1967)
3	76.5°	52.2°	7%	97.7° (2004)	42.4° (2002)
4	75.2°	52.5°	15%	93.7° (2017)	43.2° (1964)
5	73.4°	52.3°	23%	96.1° (1990)	40.8° (1964)
6	73°	51.4°	22%	95.5° (1990)	39.7° (1975)
7	74.3°	51.6°	17%	97.2° (2020)	38.7° (1964)
8	75.4°	52.5°	12%	95.7° (2001)	41.2° (1965)
9	75°	52.3°	12%	96.8° (2025)	43.5° (1964)
10	75.2°	52.5°	7%	99.5° (2025)	40.3° (2003)
11	76.6°	52.2°	2%	97.5° (1988)	44.4° (1980)
12	78.1°	52.5°	8%	96.8° (2013)	42.8° (1963)
13	78.6°	53.4°	10%	98.6° (2013)	42.3° (1998)
14	78.1°	54°	3%	96.8° (2022)	44.6° (1968)
15	77°	53.8°	8%	100.4° (2014)	42.4° (1968)
16	77.9°	53.8°	15%	97.2° (2014)	44.4° (1962)
17	78.1°	54°	5%	100.4° (2008)	42.4° (1962)
18	78.1°	53.8°	8%	99.7° (2008)	41.5° (1977)
19	78.3°	53.8°	8%	96.1° (2008)	42.1° (1974)
20	77.2°	54.3°	12%	94.8° (1988)	42.4° (1974)
21	77.2°	54°	8%	98.8° (2000)	44.2° (1962)
22	77°	54.1°	7%	94.8° (1988)	43.9° (2002)
23	76.5°	54.5°	8%	97.7° (2001)	45.9° (1971)
24	77.2°	54.1°	3%	92.7° (2021)	42.3° (1980)
25	76.5°	54.5°	5%	97.7° (1974)	45.1° (1980)
26	77°	54.1°	5%	97.7° (1974)	44.4° (1980)
27	78.3°	54°	7%	97.7° (1968)	44.8° (1971)
28	79.7°	54.9°	5%	101.8° (1973)	45.3° (1971)
29	79.7°	55.6°	5%	103.6° (1984)	45.5° (1980)
30	80.6°	55.6°	2%	97.3° (2025)	45.3° (2011)
31	80.6°	55.8°	2%	96.4° (2025)	47.1° (1988)