Point Forecast: 9NM NNW Evanston IL  42.19N 87.77W	Last Update: 4:21 am CST Dec 12, 2025

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Weather Elements Marine 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 Freezing Spray Fog Wave Hght (ft)-Direction Wave Period (s) Freezing Spray 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: 4am Fri, Dec 12 20255am Fri, Dec 12 20256am Fri, Dec 12 20257am Fri, Dec 12 20258am Fri, Dec 12 20259am Fri, Dec 12 202510am Fri, Dec 12 202511am Fri, Dec 12 202512pm Fri, Dec 12 20251pm Fri, Dec 12 20252pm Fri, Dec 12 20253pm Fri, Dec 12 20254pm Fri, Dec 12 20255pm Fri, Dec 12 20256pm Fri, Dec 12 20257pm Fri, Dec 12 20258pm Fri, Dec 12 20259pm Fri, Dec 12 202510pm Fri, Dec 12 202511pm Fri, Dec 12 202512am Sat, Dec 13 20251am Sat, Dec 13 20252am Sat, Dec 13 20253am Sat, Dec 13 20254am Sat, Dec 13 20255am Sat, Dec 13 20256am Sat, Dec 13 20257am Sat, Dec 13 20258am Sat, Dec 13 20259am Sat, Dec 13 202510am Sat, Dec 13 202511am Sat, Dec 13 202512pm Sat, Dec 13 20251pm Sat, Dec 13 20252pm Sat, Dec 13 20253pm Sat, Dec 13 20254pm Sat, Dec 13 20255pm Sat, Dec 13 20256pm Sat, Dec 13 20257pm Sat, Dec 13 20258pm Sat, Dec 13 20259pm Sat, Dec 13 202510pm Sat, Dec 13 202511pm Sat, Dec 13 202512am Sun, Dec 14 20251am Sun, Dec 14 20252am Sun, Dec 14 20253am Sun, Dec 14 20254am Sun, Dec 14 20255am Sun, Dec 14 20256am Sun, Dec 14 20257am Sun, Dec 14 20258am Sun, Dec 14 20259am Sun, Dec 14 202510am Sun, Dec 14 202511am Sun, Dec 14 202512pm Sun, Dec 14 20251pm Sun, Dec 14 20252pm Sun, Dec 14 20253pm Sun, Dec 14 20254pm Sun, Dec 14 20255pm Sun, Dec 14 20256pm Sun, Dec 14 20257pm Sun, Dec 14 20258pm Sun, Dec 14 20259pm Sun, Dec 14 202510pm Sun, Dec 14 202511pm Sun, Dec 14 202512am Mon, Dec 15 20251am Mon, Dec 15 20252am Mon, Dec 15 20253am Mon, Dec 15 20254am Mon, Dec 15 20255am Mon, Dec 15 20256am Mon, Dec 15 20257am Mon, Dec 15 20258am Mon, Dec 15 20259am Mon, Dec 15 202510am Mon, Dec 15 202511am Mon, Dec 15 202512pm Mon, Dec 15 20251pm Mon, Dec 15 20252pm Mon, Dec 15 20253pm Mon, Dec 15 20254pm Mon, Dec 15 20255pm Mon, Dec 15 20256pm Mon, Dec 15 20257pm Mon, Dec 15 20258pm Mon, Dec 15 20259pm Mon, Dec 15 202510pm Mon, Dec 15 202511pm Mon, Dec 15 202512am Tue, Dec 16 20251am Tue, Dec 16 20252am Tue, Dec 16 20253am Tue, Dec 16 20254am Tue, Dec 16 20255am Tue, Dec 16 20256am Tue, Dec 16 20257am Tue, Dec 16 20258am Tue, Dec 16 20259am Tue, Dec 16 202510am Tue, Dec 16 202511am Tue, Dec 16 202512pm Tue, Dec 16 20251pm Tue, Dec 16 20252pm Tue, Dec 16 20253pm Tue, Dec 16 2025

Date	12/12																				12/13
Hour (CST)	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03
Temperature (°F)	25	25	24	24	24	25	27	28	29	29	29	29	29	28	27	26	25	24	23	22	20	17	15	14
Dewpoint (°F)	20	20	20	20	20	20	21	22	23	23	23	23	23	23	22	21	21	20	18	16	14	12	10	7
Wind Chill (°F)	17	17	16	15	16	18	19	21	21	20	20	19	19	18	15	14	13	11	9	7	4	2	-1	-3
Surface Wind (mph)	6	6	6	6	6	6	6	6	7	9	10	10	10	11	12	13	14	15	15	16	16	16	15	15
Wind Dir	NW	WNW	WNW	WNW	WNW	WNW	W	W	WSW	W	W	W	W	W	WSW	W	W	W	WNW	WNW	WNW	NW	WNW	WNW
Gust																19	20	21	22	22	22	22	22	21
Sky Cover (%)	52	53	56	63	65	63	59	51	49	60	77	87	90	86	89	90	90	91	91	91	90	88	86	84
Precipitation Potential (%)	8	8	8	6	7	9	7	11	12	12	12	12	12	13	14	14	14	12	11	11	6	6	6	2
Relative Humidity (%)	80	83	85	86	84	82	79	79	79	79	79	80	80	82	81	82	82	82	81	80	78	79	78	75
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Wave Height (ft)	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1	2	2	2	2
Wave Period (sec)	2	2	2	2	2	2	2	3	3	2	2	2	2	2	2	2	2	2	2	2	3	3	3	3
Wave Direction (°)	150	140	350	350	140	140	140	150	130	170	250	260	260	260	260	270	280	290	300	310	320	330	340	340
Date																					12/14
Hour (CST)	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03
Temperature (°F)	12	10	9	8	8	8	9	9	9	9	9	10	10	9	9	8	8	7	6	5	4	3	2	2
Dewpoint (°F)	5	3	2	2	1	1	2	2	2	3	4	3	3	3	3	3	2	2	1	0	-1	-2	-2	-2
Wind Chill (°F)	-5	-7	-8	-9	-9	-8	-8	-7	-7	-8	-8	-7	-8	-8	-9	-10	-11	-13	-14	-15	-17	-18	-19	-19
Surface Wind (mph)	14	14	13	13	12	12	12	12	13	13	13	14	14	14	15	15	16	16	17	16	16	16	17	17
Wind Dir	NW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	NW	NW	NW	NW	NW	NW	NW	NW
Gust	20	20	19	19	19	19	19	19	20	20	20	21	20	20			22	22		22	22	22		23
Sky Cover (%)	83	83	84	87	90	91	92	94	95	97	96	93	83	73	61	52	44	37	36	36	36	36	35	35
Precipitation Potential (%)	2	2	12	12	12	36	36	36	45	45	45	45	45	45	12	12	12	12	12	12	7	7	7	7
Relative Humidity (%)	75	73	74	74	73	73	74	74	73	76	77	75	75	75	75	77	78	79	80	80	80	81	82	83
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Wave Height (ft)	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	2	2	2	2
Wave Period (sec)	3	3	2	2	2	2	2	2	2	2	2	2	2	2	2	3	3	3	3	3	3	4	4	4
Wave Direction (°)	340	330	320	320	320	320	310	310	320	320	320	320	320	320	320	320	330	340	340	350	350	350	350	350

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