Point Forecast: Arlington Heights IL  42.09N 87.98W	Last Update: 1:51 am CST Jan 22, 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: 2am Thu, Jan 22 20263am Thu, Jan 22 20264am Thu, Jan 22 20265am Thu, Jan 22 20266am Thu, Jan 22 20267am Thu, Jan 22 20268am Thu, Jan 22 20269am Thu, Jan 22 202610am Thu, Jan 22 202611am Thu, Jan 22 202612pm Thu, Jan 22 20261pm Thu, Jan 22 20262pm Thu, Jan 22 20263pm Thu, Jan 22 20264pm Thu, Jan 22 20265pm Thu, Jan 22 20266pm Thu, Jan 22 20267pm Thu, Jan 22 20268pm Thu, Jan 22 20269pm Thu, Jan 22 202610pm Thu, Jan 22 202611pm Thu, Jan 22 202612am Fri, Jan 23 20261am Fri, Jan 23 20262am Fri, Jan 23 20263am Fri, Jan 23 20264am Fri, Jan 23 20265am Fri, Jan 23 20266am Fri, Jan 23 20267am Fri, Jan 23 20268am Fri, Jan 23 20269am Fri, Jan 23 202610am Fri, Jan 23 202611am Fri, Jan 23 202612pm Fri, Jan 23 20261pm Fri, Jan 23 20262pm Fri, Jan 23 20263pm Fri, Jan 23 20264pm Fri, Jan 23 20265pm Fri, Jan 23 20266pm Fri, Jan 23 20267pm Fri, Jan 23 20268pm Fri, Jan 23 20269pm Fri, Jan 23 202610pm Fri, Jan 23 202611pm Fri, Jan 23 202612am Sat, Jan 24 20261am Sat, Jan 24 20262am Sat, Jan 24 20263am Sat, Jan 24 20264am Sat, Jan 24 20265am Sat, Jan 24 20266am Sat, Jan 24 20267am Sat, Jan 24 20268am Sat, Jan 24 20269am Sat, Jan 24 202610am Sat, Jan 24 202611am Sat, Jan 24 202612pm Sat, Jan 24 20261pm Sat, Jan 24 20262pm Sat, Jan 24 20263pm Sat, Jan 24 20264pm Sat, Jan 24 20265pm Sat, Jan 24 20266pm Sat, Jan 24 20267pm Sat, Jan 24 20268pm Sat, Jan 24 20269pm Sat, Jan 24 202610pm Sat, Jan 24 202611pm Sat, Jan 24 202612am Sun, Jan 25 20261am Sun, Jan 25 20262am Sun, Jan 25 20263am Sun, Jan 25 20264am Sun, Jan 25 20265am Sun, Jan 25 20266am Sun, Jan 25 20267am Sun, Jan 25 20268am Sun, Jan 25 20269am Sun, Jan 25 202610am Sun, Jan 25 202611am Sun, Jan 25 202612pm Sun, Jan 25 20261pm Sun, Jan 25 20262pm Sun, Jan 25 20263pm Sun, Jan 25 20264pm Sun, Jan 25 20265pm Sun, Jan 25 20266pm Sun, Jan 25 20267pm Sun, Jan 25 20268pm Sun, Jan 25 20269pm Sun, Jan 25 202610pm Sun, Jan 25 202611pm Sun, Jan 25 202612am Mon, Jan 26 20261am Mon, Jan 26 20262am Mon, Jan 26 20263am Mon, Jan 26 20264am Mon, Jan 26 20265am Mon, Jan 26 20266am Mon, Jan 26 20267am Mon, Jan 26 20268am Mon, Jan 26 20269am Mon, Jan 26 202610am Mon, Jan 26 202611am Mon, Jan 26 202612pm Mon, Jan 26 20261pm Mon, Jan 26 2026

Date	01/22																						01/23
Hour (CST)	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01
Temperature (°F)	19	17	15	14	14	14	15	16	18	20	21	22	22	21	20	19	18	16	14	11	8	6	3	0
Dewpoint (°F)	10	8	8	7	7	7	6	6	7	8	9	9	9	8	8	8	7	6	3	0	-3	-6	-9	-11
Wind Chill (°F)	5	4	1	0	-1	0	0	2	3	4	5	6	6	6	5	4	2	0	-3	-6	-10	-14	-17	-21
Surface Wind (mph)	14	11	13	13	14	14	14	15	16	18	21	21	21	20	18	17	16	16	16	17	17	18	18	18
Wind Dir	W	W	W	W	WSW	WSW	W	W	W	W	W	W	W	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW
Gust	30	28	28	29	26	26	26	28	29	31	32	33	34	34	32	30	29	28	29	29	30	30	30	30
Sky Cover (%)	14	13	13	12	23	35	46	49	54	60	65	68	71	74	75	76	77	62	47	31	34	36	39	38
Precipitation Potential (%)	15	13	11	9	6	6	5	5	8	11	13	14	15	16	16	16	14	14	14	10	10	10	0	0
Relative Humidity (%)	70	69	71	72	74	71	68	63	60	60	58	57	58	57	57	60	63	64	62	61	59	56	55	58
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	SChc	--	--	--	--	--	--	--	--	Chc	Chc	Chc	SChc	SChc	SChc	SChc	Chc	Chc	Chc	Chc	Chc	Chc	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date																							01/24
Hour (CST)	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01
Temperature (°F)	-2	-5	-7	-8	-10	-10	-11	-10	-8	-5	-3	-2	-2	-2	-3	-3	-4	-5	-6	-6	-7	-7	-7	-7
Dewpoint (°F)	-14	-16	-17	-19	-20	-21	-21	-21	-20	-20	-19	-18	-18	-17	-17	-17	-17	-17	-17	-17	-17	-17	-17	-17
Wind Chill (°F)	-24	-27	-29	-31	-33	-33	-33	-32	-29	-26	-23	-22	-21	-20	-20	-21	-21	-21	-22	-22	-22	-21	-21	-21
Surface Wind (mph)	18	17	17	16	16	16	16	16	15	15	15	14	14	13	11	10	9	9	9	8	7	7	6	6
Wind Dir	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NNW	NNW	NNW	NNW	NNW	NNW
Gust	29	28	28	26	26	25	25	25	24	23	23	21	20	18	17	16	15	14	14	14	13
Sky Cover (%)	38	37	33	29	26	19	13	7	5	9	12	14	17	19	26	33	40	44	49	53	56	59	62	66
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	2
Relative Humidity (%)	58	58	60	59	58	58	58	55	52	49	46	45	46	47	49	51	53	55	57	59	60	61	61	61
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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