Point Forecast: Chicago Heights IL  41.51N 87.64W	Last Update: 11:56 am CDT Mar 15, 2026

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Weather Elements Fire Weather Probabilistic Forecasts (Experimental) Description | Survey Temperature (°F) Dewpoint (°F) Wind Chill (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Snow Freezing Rain Sleet Fog Mixing Height  x100ftx100m Trans. Wind  ktmphkm/hm/s 20ft Wind  ktmphkm/hm/s Vent Rate (x1000 mph-ft) Quantitative Precipitation  3-hr6-hr12-hr24-hr   info     0.100.250.501.00 Snowfall  3-hr6-hr12-hr24-hr   info     0.1in1in3in6in12in

48-Hour Period Starting: 12pm Sun, Mar 15 20261pm Sun, Mar 15 20262pm Sun, Mar 15 20263pm Sun, Mar 15 20264pm Sun, Mar 15 20265pm Sun, Mar 15 20266pm Sun, Mar 15 20267pm Sun, Mar 15 20268pm Sun, Mar 15 20269pm Sun, Mar 15 202610pm Sun, Mar 15 202611pm Sun, Mar 15 202612am Mon, Mar 16 20261am Mon, Mar 16 20262am Mon, Mar 16 20263am Mon, Mar 16 20264am Mon, Mar 16 20265am Mon, Mar 16 20266am Mon, Mar 16 20267am Mon, Mar 16 20268am Mon, Mar 16 20269am Mon, Mar 16 202610am Mon, Mar 16 202611am Mon, Mar 16 202612pm Mon, Mar 16 20261pm Mon, Mar 16 20262pm Mon, Mar 16 20263pm Mon, Mar 16 20264pm Mon, Mar 16 20265pm Mon, Mar 16 20266pm Mon, Mar 16 20267pm Mon, Mar 16 20268pm Mon, Mar 16 20269pm Mon, Mar 16 202610pm Mon, Mar 16 202611pm Mon, Mar 16 202612am Tue, Mar 17 20261am Tue, Mar 17 20262am Tue, Mar 17 20263am Tue, Mar 17 20264am Tue, Mar 17 20265am Tue, Mar 17 20266am Tue, Mar 17 20267am Tue, Mar 17 20268am Tue, Mar 17 20269am Tue, Mar 17 202610am Tue, Mar 17 202611am Tue, Mar 17 202612pm Tue, Mar 17 20261pm Tue, Mar 17 20262pm Tue, Mar 17 20263pm Tue, Mar 17 20264pm Tue, Mar 17 20265pm Tue, Mar 17 20266pm Tue, Mar 17 20267pm Tue, Mar 17 20268pm Tue, Mar 17 20269pm Tue, Mar 17 202610pm Tue, Mar 17 202611pm Tue, Mar 17 202612am Wed, Mar 18 20261am Wed, Mar 18 20262am Wed, Mar 18 20263am Wed, Mar 18 20264am Wed, Mar 18 20265am Wed, Mar 18 20266am Wed, Mar 18 20267am Wed, Mar 18 20268am Wed, Mar 18 20269am Wed, Mar 18 202610am Wed, Mar 18 202611am Wed, Mar 18 202612pm Wed, Mar 18 20261pm Wed, Mar 18 20262pm Wed, Mar 18 20263pm Wed, Mar 18 20264pm Wed, Mar 18 20265pm Wed, Mar 18 20266pm Wed, Mar 18 20267pm Wed, Mar 18 20268pm Wed, Mar 18 20269pm Wed, Mar 18 202610pm Wed, Mar 18 202611pm Wed, Mar 18 202612am Thu, Mar 19 20261am Thu, Mar 19 20262am Thu, Mar 19 20263am Thu, Mar 19 20264am Thu, Mar 19 20265am Thu, Mar 19 20266am Thu, Mar 19 20267am Thu, Mar 19 20268am Thu, Mar 19 20269am Thu, Mar 19 202610am Thu, Mar 19 202611am Thu, Mar 19 202612pm Thu, Mar 19 20261pm Thu, Mar 19 20262pm Thu, Mar 19 20263pm Thu, Mar 19 20264pm Thu, Mar 19 20265pm Thu, Mar 19 20266pm Thu, Mar 19 20267pm Thu, Mar 19 20268pm Thu, Mar 19 20269pm Thu, Mar 19 202610pm Thu, Mar 19 202611pm Thu, Mar 19 2026

Date	03/15												03/16
Hour (CDT)	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11
Temperature (°F)	59	60	60	60	59	59	59	58	54	51	45	42	40	38	34	32	31	29	27	25	24	24	24	24
Dewpoint (°F)	48	51	53	54	54	55	55	55	52	48	41	38	36	33	31	29	26	24	22	21	19	19	19	18
Wind Chill (°F)											37	32	30	28	23	20	17	15	13	10	9	8	8	8
Surface Wind (mph)	23	25	26	28	28	26	25	23	23	23	23	22	22	22	23	24	25	26	28	26	26	25	25	25
Wind Dir	S	S	S	S	S	S	S	S	SSW	WSW	W	W	W	W	W	W	W	W	W	WNW	WNW	WNW	WNW	WNW
Gust	36	39	41	44	44	41	39	37	36	34	34	33	33	33	34	37	39	40	41	41	41	40	39	39
Sky Cover (%)	89	84	90	90	91	92	92	94	91	92	94	93	93	91	90	85	87	91	90	85	86	86	87	89
Precipitation Potential (%)	73	56	56	56	56	73	91	95	99	81	64	48	32	46	61	60	60	59	66	73	73	73	67	67
Relative Humidity (%)	82	78	82	84	85	87	86	87	89	92	100	95	89	84	87	86	82	83	83	83	81	81	79	77
Rain	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Ocnl	Ocnl	Ocnl	Ocnl	Lkly	Chc	Chc	Chc	Chc	--	--	--	--	--	--	--	--	--
Thunder	--	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	Chc	--	--	--	--	--	--	--	--	--	--	--
Date													03/17
Hour (CDT)	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11
Temperature (°F)	24	24	24	24	24	24	23	22	21	20	19	18	18	17	16	15	14	13	13	12	13	14	16	18
Dewpoint (°F)	17	17	17	16	16	15	14	12	12	11	11	10	9	8	8	7	6	6	5	5	5	5	6	6
Wind Chill (°F)	8	8	8	8	8	8	7	6	5	4	4	3	3	2	1	0	-1	-1	-2	-2	0	1	4	6
Surface Wind (mph)	25	25	25	25	25	24	23	18	20	18	17	16	15	14	14	14	14	13	11	11	11	11	11	10
Wind Dir	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	NW	NW	NW	WNW	WNW	WNW	WNW	WNW	WNW
Gust	39	38	37	37	36	34	32	30	30	30	28	25	24	23	22	22	21	21	20	18	18	17	17	17
Sky Cover (%)	89	87	88	82	91	93	93	92	91	89	88	83	79	74	65	56	47	40	33	26	25	23	22	23
Precipitation Potential (%)	67	57	57	57	28	28	28	17	17	17	17	17	17	1	1	1	1	1	1	0	0	0	0	0
Relative Humidity (%)	75	73	74	70	69	69	70	66	68	68	68	68	68	68	68	69	70	71	71	71	69	66	62	57
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	Lkly	Lkly	Lkly	Lkly	Chc	Chc	Chc	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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