Point Forecast: Grandwood Park IL  42.39N 87.99W	Last Update: 9:21 pm CDT Apr 19, 2026

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Weather Elements Fire Weather Probabilistic Forecasts (Experimental) Description | Survey Temperature (°C) Dewpoint (°C) Wind Chill (°C) 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-m) 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: 1am Mon, Apr 20 20262am Mon, Apr 20 20263am Mon, Apr 20 20264am Mon, Apr 20 20265am Mon, Apr 20 20266am Mon, Apr 20 20267am Mon, Apr 20 20268am Mon, Apr 20 20269am Mon, Apr 20 202610am Mon, Apr 20 202611am Mon, Apr 20 202612pm Mon, Apr 20 20261pm Mon, Apr 20 20262pm Mon, Apr 20 20263pm Mon, Apr 20 20264pm Mon, Apr 20 20265pm Mon, Apr 20 20266pm Mon, Apr 20 20267pm Mon, Apr 20 20268pm Mon, Apr 20 20269pm Mon, Apr 20 202610pm Mon, Apr 20 202611pm Mon, Apr 20 202612am Tue, Apr 21 20261am Tue, Apr 21 20262am Tue, Apr 21 20263am Tue, Apr 21 20264am Tue, Apr 21 20265am Tue, Apr 21 20266am Tue, Apr 21 20267am Tue, Apr 21 20268am Tue, Apr 21 20269am Tue, Apr 21 202610am Tue, Apr 21 202611am Tue, Apr 21 202612pm Tue, Apr 21 20261pm Tue, Apr 21 20262pm Tue, Apr 21 20263pm Tue, Apr 21 20264pm Tue, Apr 21 20265pm Tue, Apr 21 20266pm Tue, Apr 21 20267pm Tue, Apr 21 20268pm Tue, Apr 21 20269pm Tue, Apr 21 202610pm Tue, Apr 21 202611pm Tue, Apr 21 202612am Wed, Apr 22 20261am Wed, Apr 22 20262am Wed, Apr 22 20263am Wed, Apr 22 20264am Wed, Apr 22 20265am Wed, Apr 22 20266am Wed, Apr 22 20267am Wed, Apr 22 20268am Wed, Apr 22 20269am Wed, Apr 22 202610am Wed, Apr 22 202611am Wed, Apr 22 202612pm Wed, Apr 22 20261pm Wed, Apr 22 20262pm Wed, Apr 22 20263pm Wed, Apr 22 20264pm Wed, Apr 22 20265pm Wed, Apr 22 20266pm Wed, Apr 22 20267pm Wed, Apr 22 20268pm Wed, Apr 22 20269pm Wed, Apr 22 202610pm Wed, Apr 22 202611pm Wed, Apr 22 202612am Thu, Apr 23 20261am Thu, Apr 23 20262am Thu, Apr 23 20263am Thu, Apr 23 20264am Thu, Apr 23 20265am Thu, Apr 23 20266am Thu, Apr 23 20267am Thu, Apr 23 20268am Thu, Apr 23 20269am Thu, Apr 23 202610am Thu, Apr 23 202611am Thu, Apr 23 202612pm Thu, Apr 23 20261pm Thu, Apr 23 20262pm Thu, Apr 23 20263pm Thu, Apr 23 20264pm Thu, Apr 23 20265pm Thu, Apr 23 20266pm Thu, Apr 23 20267pm Thu, Apr 23 20268pm Thu, Apr 23 20269pm Thu, Apr 23 202610pm Thu, Apr 23 202611pm Thu, Apr 23 202612am Fri, Apr 24 20261am Fri, Apr 24 20262am Fri, Apr 24 20263am Fri, Apr 24 20264am Fri, Apr 24 20265am Fri, Apr 24 20266am Fri, Apr 24 20267am Fri, Apr 24 20268am Fri, Apr 24 20269am Fri, Apr 24 202610am Fri, Apr 24 202611am Fri, Apr 24 202612pm Fri, Apr 24 2026

Date	04/20																							04/21
Hour (CDT)	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00
Temperature (°C)	1	0	0	-1	-1	-1	0	1	3	5	6	7	8	9	9	9	10	9	8	7	7	6	6	6
Dewpoint (°C)	-2	-2	-3	-3	-3	-3	-3	-3	-3	-4	-4	-4	-3	-3	-3	-2	-2	-2	-1	-1	-1	-1	-1	-1
Wind Chill (°C)	-1	0	0	-1	-1	-1	0	1	3	3	4	5	6	7	7	7	8	7	6	5	4	3	3	3
Surface Wind (mph)	3	2	2	1	1	0	1	1	3	5	6	7	8	8	9	10	9	9	9	9	9	9	9	10
Wind Dir	N	N	NNE	NE	ENE	E	E	ESE	SSE	S	S	S	SSE	SSE	SSE	SSE	SE	SE	SE	SSE	SSE	S	S	S
Gust
Sky Cover (%)	25	21	17	13	11	9	7	10	11	10	12	14	18	24	20	39	47	55	74	65	64	62	59	57
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	3	3	3	0	0	0	0	0	0
Relative Humidity (%)	79	82	84	86	85	84	80	73	65	54	49	46	44	42	43	43	43	46	50	56	59	61	62	63
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date																								04/22
Hour (CDT)	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00
Temperature (°C)	6	7	7	8	8	8	8	11	13	15	17	19	20	21	22	22	21	21	19	18	16	14	13	13
Dewpoint (°C)	0	1	1	2	3	3	4	6	7	8	9	9	10	11	11	11	12	12	11	11	11	10	10	9
Wind Chill (°C)	3	3	4	4	4	5	6
Surface Wind (mph)	10	10	11	11	11	11	11	13	13	14	14	14	14	13	13	11	9	8	7	6	5	5	5	5
Wind Dir	S	S	SSW	SSW	SSW	SW	SW	SW	SW	SW	SW	WSW	WSW	WSW	WSW	WSW	WSW	W	W	W	W	WNW	WNW	NW
Gust	18	18				20	20		21	22	22	22	22	21
Sky Cover (%)	54	55	57	58	52	46	40	39	38	37	37	37	37	35	34	32	35	38	41	37	33	29	24	20
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	7	7	7	7	7	7	6	6	6	6	6	6
Relative Humidity (%)	63	64	66	68	71	73	74	72	67	63	59	56	53	52	52	52	53	55	59	64	70	76	79	80
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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