Point Forecast: Ontario International Arpt CA  34.06N 117.58W (Elev. 906 ft)	Last Update: 6:21 pm PDT May 13, 2025

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Weather Elements Weather/Precipitation Temperature (°F) Dewpoint (°F) Heat Index (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog

48-Hour Period Starting: 7pm Tue, May 13 20258pm Tue, May 13 20259pm Tue, May 13 202510pm Tue, May 13 202511pm Tue, May 13 202512am Wed, May 14 20251am Wed, May 14 20252am Wed, May 14 20253am Wed, May 14 20254am Wed, May 14 20255am Wed, May 14 20256am Wed, May 14 20257am Wed, May 14 20258am Wed, May 14 20259am Wed, May 14 202510am Wed, May 14 202511am Wed, May 14 202512pm Wed, May 14 20251pm Wed, May 14 20252pm Wed, May 14 20253pm Wed, May 14 20254pm Wed, May 14 20255pm Wed, May 14 20256pm Wed, May 14 20257pm Wed, May 14 20258pm Wed, May 14 20259pm Wed, May 14 202510pm Wed, May 14 202511pm Wed, May 14 202512am Thu, May 15 20251am Thu, May 15 20252am Thu, May 15 20253am Thu, May 15 20254am Thu, May 15 20255am Thu, May 15 20256am Thu, May 15 20257am Thu, May 15 20258am Thu, May 15 20259am Thu, May 15 202510am Thu, May 15 202511am Thu, May 15 202512pm Thu, May 15 20251pm Thu, May 15 20252pm Thu, May 15 20253pm Thu, May 15 20254pm Thu, May 15 20255pm Thu, May 15 20256pm Thu, May 15 20257pm Thu, May 15 20258pm Thu, May 15 20259pm Thu, May 15 202510pm Thu, May 15 202511pm Thu, May 15 202512am Fri, May 16 20251am Fri, May 16 20252am Fri, May 16 20253am Fri, May 16 20254am Fri, May 16 20255am Fri, May 16 20256am Fri, May 16 20257am Fri, May 16 20258am Fri, May 16 20259am Fri, May 16 202510am Fri, May 16 202511am Fri, May 16 202512pm Fri, May 16 20251pm Fri, May 16 20252pm Fri, May 16 20253pm Fri, May 16 20254pm Fri, May 16 20255pm Fri, May 16 20256pm Fri, May 16 20257pm Fri, May 16 20258pm Fri, May 16 20259pm Fri, May 16 202510pm Fri, May 16 202511pm Fri, May 16 202512am Sat, May 17 20251am Sat, May 17 20252am Sat, May 17 20253am Sat, May 17 20254am Sat, May 17 20255am Sat, May 17 20256am Sat, May 17 20257am Sat, May 17 20258am Sat, May 17 20259am Sat, May 17 202510am Sat, May 17 202511am Sat, May 17 202512pm Sat, May 17 20251pm Sat, May 17 20252pm Sat, May 17 20253pm Sat, May 17 20254pm Sat, May 17 20255pm Sat, May 17 20256pm Sat, May 17 20257pm Sat, May 17 20258pm Sat, May 17 20259pm Sat, May 17 202510pm Sat, May 17 202511pm Sat, May 17 202512am Sun, May 18 20251am Sun, May 18 20252am Sun, May 18 20253am Sun, May 18 20254am Sun, May 18 20255am Sun, May 18 20256am Sun, May 18 2025

Date	05/13					05/14
Hour (PDT)	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18
Temperature (°F)	64	62	59	58	56	56	54	54	53	53	52	52	54	56	59	62	66	70	73	75	75	75	75	73
Dewpoint (°F)	45	45	46	47	48	49	49	48	48	48	48	48	48	48	48	47	46	46	45	46	46	47	47	47
Heat Index (°F)																				75	75	75	75
Surface Wind (mph)	15	14	11	10	7	6	6	5	5	3	3	2	2	2	3	5	7	9	11	14	15	16	15	15
Wind Dir	SW	SW	SW	SW	SW	W	W	W	W	NW	NW	N	E	SE	S	SW	W	W	W	W	W	W	W	W
Gust	24	22	20																20	23	24	25	25	24
Sky Cover (%)	30	39	39	39	38	38	38	58	58	58	59	59	59	48	48	48	12	12	12	18	18	18	12	12
Precipitation Potential (%)	3	3	3	3	2	2	2	2	2	2	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	50	55	62	68	75	77	81	82	83	83	85	86	81	76	66	56	48	42	37	35	35	37	37	39
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date						05/15
Hour (PDT)	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18
Temperature (°F)	70	68	65	63	61	60	58	56	57	56	54	59	60	58	64	67	67	73	76	75	77	78	74	77
Dewpoint (°F)	46	45	46	47	48	48	49	49	49	49	49	50	50	51	50	49	49	48	48	48	48	48	48	48
Heat Index (°F)																			76	75	77	78		77
Surface Wind (mph)	14	11	9	6	3	2	2	2	2	2	2	2	2	2	2	5	6	8	10	13	14	15	15	15
Wind Dir	W	SW	SW	SW	SW	SW	W	W	W	W	W	W	W	W	SW	SW	SW	SW	SW	SW	SW	W	SW	SW
Gust	22	20																		22	23	23	24	24
Sky Cover (%)	12	12	12	12	19	19	19	19	19	19	22	22	22	22	22	22	12	12	12	12	12	12	14	14
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	42	45	51	56	62	67	71	77	76	79	83	72	72	77	60	52	52	41	38	39	36	36	40	36
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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