Atlantic Point Weather

36°F

Bellport, NY, USA

Updated: 04/7/2026 12:40 am

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WxSim & NWS Forecast Comparison

National Weather Service (NW), Actual Observed (Act), WxSim Generated (WS)
Morning Forecasts

Updated: 04-06-26 at 5:00 am

Goal	Forecast Day						Day +1						Day +2						Day +3
± 2.0° F	High			Low			High			Low			High			Low			High			Low
Date	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS
04-06-26	49		56	76		39	46		56	75		30	50		54	77		35	53		61	73		39
04-05-26	54	55.6	63	87	41.0	41	49		56	77		40	46		52	75		29	52		54	75		36
04-04-26	50	70.7	65	84	47.7	45	54	55.6	66	86	41.0	41	48		55	77		39	47		54	76		28
04-03-26	43	57.9	63	76	39.7	50	49	70.7	62	84	47.7	43	54	55.6	67	85	41.0	41	50		55	78		38
04-02-26	44	50.5	50	65	42.6	40	42	57.9	64	76	39.7	50	48	70.7	61	85	47.7	43	53	55.6	65	85	41.0	42
04-01-26	49	70.2	75	66	53.1	41	45	50.5	51	65	42.6	39	43	57.9	63	75	39.7	49	49	70.7	66	83	47.7	45
03-31-26	53	67.5	71	69	48.0	51	50	70.2	69	68	53.1	41	46	50.5	50	65	42.6	39	43	57.9	63	75	39.7	49
Results	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS
# Succ	1		1	0		1	1		2	0		1	1		1	0		1	0		0	0		1
% Succ	16.7		16.7			16.7	20.0		40.0			20.0	25.0		25.0			25.0			0.0			33.3
Ave Error	13.2		4.5	29.2		5.1	13.0		5.4	31.0		6.1	10.9		6.7	34.8		4.4	13.1		6.4	38.2		4.3
Net Error	-13.2		2.4	29.2		-0.7	-13.0		1.4	31.0		-2.0	-10.9		1.6	34.8		0.2	-13.1		3.3	38.2		2.5
Std Dev	7.1		2.1	10.8		4.4	6.5		2.7	7.1		3.4	4.7		2.4	4.6		2.2	0.0		0.0	0.0		0.0

Start: Days: Cols: Goal: Ext Stats: Diff Cols: Hilite #s: Time: Show NWS

Mid-Day Forecasts

Updated: 04-06-26 at 11:00 am

Goal	Forecast Day						Day +1						Day +2						Day +3
± 2.0° F	High			Low			High			Low			High			Low			High			Low
Date	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS
04-06-26	76		58	46		40	75		56	50		30	77		53	53		35	73		61	52		41
04-05-26	87	55.6	61	49	39.7	40	77		55	46		39	75		53	52		29	75		53	54		36
04-04-26	84	70.7	74	54	41.0	44	86	55.6	64	48	39.7	40	77		56	47		40	76		52	53		28
04-03-26	76	57.9	64	49	47.7	51	84	70.7	64	54	41.0	42	85	55.6	62	50	39.7	40	78		55	48		38
04-02-26	65	50.5	50	43	39.7	40	75	57.9	64	49	47.7	50	84	70.7	61	54	41.0	43	86	55.6	65	51	39.7	42
04-01-26	66	70.2	78	45	42.6	47	65	50.5	59	43	39.7	47	75	57.9	70	49	47.7	55	83	70.7	70	52	41.0	49
03-31-26	69	67.5	73	50	53.1	54	68	70.2	73	46	42.6	45	65	50.5	54	43	39.7	43	75	57.9	68	47	47.7	53
Results	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS
# Succ	1		1	1		3	0		0	1		2	0		0	1		2	0		1	1		0
% Succ	16.7		16.7	16.7		50.0			0.0	20.0		40.0			0.0	25.0		50.0			33.3	33.3		0.0
Ave Error	13.8		4.8	5.4		2.0	15.5		6.5	5.9		2.7	18.6		7.9	7.0		3.2	19.9		6.7	7.7		5.2
Net Error	12.4		4.6	4.4		2.0	14.6		3.8	5.9		2.7	18.6		3.1	7.0		3.2	19.9		6.3	7.2		5.2
Std Dev	8.4		2.3	4.1		1.5	6.8		0.9	3.9		1.3	5.4		0.8	1.7		1.5	0.0		0.0	0.0		0.0

Start: Days: Cols: Goal: Ext Stats: Diff Cols: Hilite #s: Time: Show NWS

Evening Forecasts

Updated: 04-06-26 at 5:00 pm

Goal	Forecast Day						Day +1						Day +2						Day +3
± 2.0° F	Low			High			Low			High			Low			High			Low			High
Date	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS
04-06-26	75		41	45		55	75		29	50		54	75		36	55		62	75		42	55		66
04-05-26	87	39.7	39	49	55.6	56	77		38	46		55	76		29	51		54	77		36	53		61
04-04-26	84	41.0	42	54	70.7	65	86	39.7	41	49	55.6	56	78		40	46		54	76		30	52		56
04-03-26	76	47.7	51	50	57.9	64	85	41.0	44	54	70.7	65	87	39.7	42	48	55.6	55	77		39	47		54
04-02-26	65	39.7	41	43	50.5	63	75	47.7	51	49	57.9	65	84	41.0	43	54	70.7	65	86	39.7	42	51	55.6	55
04-01-26	66	42.6	44	44	70.2	57	66	39.7	45	43	50.5	68	75	47.7	54	48	57.9	68	84	41.0	47	52	70.7	66
03-31-26	69	53.1	52	50	67.5	70	66	42.6	44	45	70.2	53	65	39.7	41	43	50.5	64	76	47.7	52	48	57.9	66
Results	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS
# Succ	0		5	0		1	0		2	0		1	0		2	0		1	0		0	0		1
% Succ			83.3			16.7			40.0			20.0			50.0			25.0			0.0			33.3
Ave Error	30.5		1.5	13.7		6.7	33.5		2.9	13.0		9.6	35.7		3.0	10.4		7.5	39.2		4.2	11.1		4.5
Net Error	30.5		0.9	-13.7		0.4	33.5		2.9	-13.0		0.4	35.7		3.0	-10.4		4.3	39.2		4.2	-11.1		0.9
Std Dev	9.3		0.8	6.9		4.4	7.9		0.7	3.8		4.6	5.8		0.3	1.4		3.4	0.0		0.0	0.0		0.0

Start: Days: Cols: Goal: Ext Stats: Diff Cols: Hilite #s: Time: Show NWS

Nighttime Forecasts

Updated: 04-06-26 at 11:00 pm

Goal	Forecast Day						Day +1						Day +2						Day +3
± 2.0° F	Low			High			Low			High			Low			High			Low			High
Date	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS
04-06-26	46		32	76		54	50		28	78		53	53		35	73		61	52		41	71		65
04-05-26	49	39.7	38	77	55.6	56	46		38	76		54	51		29	77		52	53		35	73		60
04-04-26	54	41.0	38	86	70.7	61	49	39.7	41	78	55.6	55	46		39	76		53	52		30	74		51
04-03-26	50	47.7	49	85	57.9	65	54	41.0	44	87	70.7	66	48	39.7	42	77	55.6	55	47		38	76		54
04-02-26	43	39.7	37	75	50.5	62	49	47.7	50	84	57.9	62	54	41.0	44	86	70.7	65	51	39.7	41	78	55.6	56
04-01-26	44	42.6	43	66	70.2	54	43	39.7	43	75	50.5	67	48	47.7	53	84	57.9	65	52	41.0	45	82	70.7	65
03-31-26	50	53.1	52	66	67.5	72	45	42.6	44	65	70.2	52	43	39.7	40	76	50.5	62	48	47.7	50	83	57.9	66
Results	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS	NW	Act	WS
# Succ	1		4	1		1	1		2	0		1	1		1	0		1	1		1	0		1
% Succ	16.7		66.7	16.7		16.7	20.0		40.0			20.0	25.0		25.0			25.0	33.3		33.3			33.3
Ave Error	5.4		1.7	15.7		8.2	5.9		2.3	18.9		8.8	6.2		2.7	22.1		6.2	7.5		2.5	19.6		4.7
Net Error	4.4		-1.1	13.8		-0.4	5.9		2.3	16.8		-0.6	6.2		2.7	22.1		3.1	7.5		2.5	19.6		0.9
Std Dev	4.1		0.9	7.9		4.8	4.1		0.5	3.8		4.6	1.0		0.2	0.3		2.8	0.0		0.0	0.0		0.0

Start: Days: Cols: Goal: Ext Stats: Diff Cols: Hilite #s: Time: Show NWS