Point Forecast: 3 Miles SSW Grantsburg IL  37.33N 88.77W	Last Update: 5:41 pm CST Feb 18, 2026

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Weather Elements Weather/Precipitation 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 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: 6pm Wed, Feb 18 20267pm Wed, Feb 18 20268pm Wed, Feb 18 20269pm Wed, Feb 18 202610pm Wed, Feb 18 202611pm Wed, Feb 18 202612am Thu, Feb 19 20261am Thu, Feb 19 20262am Thu, Feb 19 20263am Thu, Feb 19 20264am Thu, Feb 19 20265am Thu, Feb 19 20266am Thu, Feb 19 20267am Thu, Feb 19 20268am Thu, Feb 19 20269am Thu, Feb 19 202610am Thu, Feb 19 202611am Thu, Feb 19 202612pm Thu, Feb 19 20261pm Thu, Feb 19 20262pm Thu, Feb 19 20263pm Thu, Feb 19 20264pm Thu, Feb 19 20265pm Thu, Feb 19 20266pm Thu, Feb 19 20267pm Thu, Feb 19 20268pm Thu, Feb 19 20269pm Thu, Feb 19 202610pm Thu, Feb 19 202611pm Thu, Feb 19 202612am Fri, Feb 20 20261am Fri, Feb 20 20262am Fri, Feb 20 20263am Fri, Feb 20 20264am Fri, Feb 20 20265am Fri, Feb 20 20266am Fri, Feb 20 20267am Fri, Feb 20 20268am Fri, Feb 20 20269am Fri, Feb 20 202610am Fri, Feb 20 202611am Fri, Feb 20 202612pm Fri, Feb 20 20261pm Fri, Feb 20 20262pm Fri, Feb 20 20263pm Fri, Feb 20 20264pm Fri, Feb 20 20265pm Fri, Feb 20 20266pm Fri, Feb 20 20267pm Fri, Feb 20 20268pm Fri, Feb 20 20269pm Fri, Feb 20 202610pm Fri, Feb 20 202611pm Fri, Feb 20 202612am Sat, Feb 21 20261am Sat, Feb 21 20262am Sat, Feb 21 20263am Sat, Feb 21 20264am Sat, Feb 21 20265am Sat, Feb 21 20266am Sat, Feb 21 20267am Sat, Feb 21 20268am Sat, Feb 21 20269am Sat, Feb 21 202610am Sat, Feb 21 202611am Sat, Feb 21 202612pm Sat, Feb 21 20261pm Sat, Feb 21 20262pm Sat, Feb 21 20263pm Sat, Feb 21 20264pm Sat, Feb 21 20265pm Sat, Feb 21 20266pm Sat, Feb 21 20267pm Sat, Feb 21 20268pm Sat, Feb 21 20269pm Sat, Feb 21 202610pm Sat, Feb 21 202611pm Sat, Feb 21 202612am Sun, Feb 22 20261am Sun, Feb 22 20262am Sun, Feb 22 20263am Sun, Feb 22 20264am Sun, Feb 22 20265am Sun, Feb 22 20266am Sun, Feb 22 20267am Sun, Feb 22 20268am Sun, Feb 22 20269am Sun, Feb 22 202610am Sun, Feb 22 202611am Sun, Feb 22 202612pm Sun, Feb 22 20261pm Sun, Feb 22 20262pm Sun, Feb 22 20263pm Sun, Feb 22 20264pm Sun, Feb 22 20265pm Sun, Feb 22 20266pm Sun, Feb 22 20267pm Sun, Feb 22 20268pm Sun, Feb 22 20269pm Sun, Feb 22 202610pm Sun, Feb 22 202611pm Sun, Feb 22 202612am Mon, Feb 23 20261am Mon, Feb 23 20262am Mon, Feb 23 20263am Mon, Feb 23 20264am Mon, Feb 23 20265am Mon, Feb 23 2026

Date	02/18						02/19
Hour (CST)	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17
Temperature (°F)	62	59	58	58	57	56	56	56	56	56	56	56	57	58	58	62	64	66	68	69	70	70	69	68
Dewpoint (°F)	55	54	54	55	54	54	55	55	55	55	55	56	56	58	58	60	61	60	60	60	60	60	60	60
Wind Chill (°F)
Surface Wind (mph)	6	6	6	6	5	6	5	5	5	5	5	6	5	6	7	9	10	13	15	15	16	16	16	16
Wind Dir	S	S	S	S	S	S	S	S	S	SSW	SSW	S	S	S	S	S	S	SSW	SSW	SSW	SSW	SSW	SSW	SSW
Gust															20	18	23	26	30	31	32	33	32	32
Sky Cover (%)	39	35	30	29	34	42	51	57	62	66	71	75	78	78	77	77	81	86	89	89	86	83	81	80
Precipitation Potential (%)	0	0	0	2	4	2	5	12	12	8	9	7	5	6	8	18	28	28	35	44	50	49	35	20
Relative Humidity (%)	79	83	86	90	90	93	96	96	96	96	97	98	96	100	100	93	90	81	76	73	71	71	73	76
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	SChc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	Chc	Chc	Chc	Chc	Chc	SChc
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date							02/20
Hour (CST)	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17
Temperature (°F)	67	65	64	63	61	59	57	55	52	49	47	45	44	45	47	49	51	53	55	57	58	58	57	55
Dewpoint (°F)	59	59	58	55	51	45	40	36	34	33	33	32	34	34	35	35	34	34	33	33	33	33	33	34
Wind Chill (°F)										46	43	41	40	41	43	46
Surface Wind (mph)	14	11	11	10	10	9	9	9	8	8	8	7	7	7	8	8	8	8	8	8	7	6	5	3
Wind Dir	SSW	SSW	SW	SW	WSW	WSW	WSW	WSW	W	W	W	W	W	W	W	W	W	W	W	W	W	W	WNW	NW
Gust	28	22	21	20	18	18	18	18
Sky Cover (%)	50	43	46	49	39	29	19	17	14	12	10	9	7	11	14	18	19	20	21	18	15	12	23	35
Precipitation Potential (%)	18	18	18	3	3	3	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	2	2
Relative Humidity (%)	75	81	81	75	70	60	53	49	50	54	58	60	68	65	63	58	52	48	43	40	39	39	40	45
Rain	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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