Point Forecast: Arlington Heights IL  42.09N 87.98W	Last Update: 7:27 pm CDT Jul 12, 2025

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Date	07/12					07/13
Hour (CDT)	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 (°C)	27	26	25	24	23	22	21	21	20	19	18	18	19	21	23	26	27	27	28	28	29	29	29	28
Dewpoint (°C)	21	21	21	20	19	19	18	18	17	17	17	17	16	16	16	16	16	15	15	15	16	16	16	16
Heat Index (°C)	29	26	25	24												26	27	28	28	28	29	29	29	28
Surface Wind (km/h)	14	11	10	8	8	8	8	8	8	8	5	5	3	5	5	8	10	10	11	11	11	11	11	11
Wind Dir	W	W	W	W	W	WNW	WNW	WNW	WNW	WNW	NW	NW	NW	WNW	WNW	W	W	W	W	W	W	W	W	WNW
Gust
Relative Humidity (%)	70	73	77	79	81	81	82	83	85	87	89	88	84	75	65	56	51	48	46	45	44	44	45	47
Date						07/14
Hour (CDT)	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 (°C)	27	26	24	23	22	21	21	20	19	19	19	19	20	22	24	27	29	30	31	31	32	32	32	31
Dewpoint (°C)	16	16	17	17	17	17	17	17	17	17	17	17	18	18	18	19	19	19	19	19	20	20	20	20
Heat Index (°C)	28	26	24												25	28	30	32	32	33	33	34	34	33
Surface Wind (km/h)	10	8	5	5	5	5	5	5	5	8	8	8	8	10	11	11	13	13	14	14	13	11	11	10
Wind Dir	W	W	WSW	WSW	WSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW
Gust
Relative Humidity (%)	50	55	61	68	74	79	82	86	88	90	91	90	86	77	68	61	56	53	52	51	50	49	50	52

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