National Weather Service

Point Forecast: 9NM NNW Evanston IL 42.19N 87.77W	Last Update: 9:12 pm CDT May 1, 2024

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Weather Elements	Marine Weather	Probabilistic Forecasts (Experimental) Description \| Survey
Temperature (°F) Dewpoint (°F) Wind Chill (°F) Surface Wind 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 info 0.100.250.501.00 Snowfall info 0.1in1in3in6in12in

48-Hour Period Starting:


Date	05/01			05/02
Hour (CDT)	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20
Temperature (°F)	62	58	55	54	53	52	51	51	50	51	51	51	51	52	52	51	51	52	53	55	57	57	60	58
Dewpoint (°F)	37	43	43	44	43	44	44	44	45	45	45	45	45	46	46	45	45	46	46	47	47	46	50	51
Wind Chill (°F)									47
Surface Wind (mph)	4	4	4	4	5	5	6	6	6	6	7	7	8	9	10	10	9	9	9	9	8	8	8	8
Wind Dir	N	N	NNE	NNE	NE	NE	NE	NE	ENE	ENE	E	E	E	E	E	E	E	E	E	E	E	ESE	ESE	ESE
Gust
Sky Cover (%)	40	39	39	48	49	54	65	64	62	61	68	78	84	85	81	76	73	69	66	67	69	72	75	77
Precipitation Potential (%)	3	4	4	7	10	11	11	17	22	31	39	39	39	45	45	45	39	39	39	39	39	39	55	55
Relative Humidity (%)	39	57	64	69	69	74	77	77	83	80	80	80	80	80	80	80	80	80	77	74	69	67	69	77
Rain	--	--	--	--	--	--	--	SChc	SChc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Lkly	Lkly
Thunder	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	--	--	--	--	--	--	SChc	SChc	SChc	Chc	Chc
Wave Height (ft)	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	2	2	2	2	2	1
Wave Period (sec)	2	1	1	1	2	2	2	2	2	3	3	3	3	3	3	3	4	4	4	4	4	4	4	4
Wave Direction (°)	340	340	350	230	30	40	40	50	50	60	60	60	70	70	80	80	80	80	80	80	80	80	90	90

Date				05/03
Hour (CDT)	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20
Temperature (°F)	59	59	60	60	59	58	57	56	56	55	55	57	58	59	59	59	58	58	58	57	56	56	55	54
Dewpoint (°F)	52	53	53	53	53	53	53	52	53	53	54	54	54	54	54	53	52	52	51	50	50	49	48	47
Wind Chill (°F)
Surface Wind (mph)	8	7	8	8	8	7	6	5	5	5	5	6	6	6	7	7	8	8	9	9	8	8	9	8
Wind Dir	SE	SSE	SSE	S	SSW	SSW	S	S	S	S	SSW	SW	WNW	NNW	NNW	N	N	N	NNE	NNE	NNE	NNE	NNE	NNE
Gust
Sky Cover (%)	78	80	87	93	100	98	95	93	91	89	87	79	70	62	65	69	72	72	72	72	70	67	65	57
Precipitation Potential (%)	55	55	55	55	72	72	72	72	72	72	53	53	53	53	53	53	39	39	39	39	39	39	13	13
Relative Humidity (%)	78	80	78	78	80	83	86	86	90	93	96	90	86	83	83	80	80	80	77	77	80	77	78	79
Rain	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	--	--
Thunder	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--
Wave Height (ft)	1	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1
Wave Period (sec)	4	4	4	4	4	4	4	4	3	3	3	3	3	3	3	2	2	2	3	3	4	4	4	4
Wave Direction (°)	90	100	100	100	110	110	110	110	110	120	120	120	120	120	120	350	150	10	10	20	30	30	30	30

International System of Units	Forecast Discussion
Marine Point Forecast	Hourly Weather Graph
National Marine Forecasts	Tide Information
Graphical Hazardous Weather Outlook	Hazardous Weather
Regional Weather Conditions	Past Weather Information