Atlantic Point Weather

25°F

Bellport, NY, USA

Updated: 03/29/2026 1:50 am

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WxSim & NWS Forecast Comparison

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

Updated: 03-28-26 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
03-28-26	50		47	82		29	52		53	85		39	53		62	76		45	48		67	70		52
03-27-26	53	55.9	54	84	49.5	32	50		47	81		31	50		53	85		40	52		60	75		43
03-26-26	45	61.0	65	78	42.1	46	52	55.9	54	82	49.5	30	49		45	81		30	51		52	83		39
03-25-26	50	50.7	55	78	31.1	40	45	61.0	64	77	42.1	48	52	55.9	55	82	49.5	29	48		46	80		29
03-24-26	51	50.0	51	83	31.8	36	50	50.7	53	77	31.1	41	45	61.0	62	76	42.1	48	50	55.9	59	82	49.5	25
03-23-26	50	49.6	46	81	39.0	30	52	50.0	50	82	31.8	34	49	50.7	53	77	31.1	39	46	61.0	59	77	42.1	47
03-22-26	48	50.5	59	81	42.3	37	50	49.6	46	81	39.0	30	51	50.0	52	81	31.8	34	50	50.7	55	78	31.1	42
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	3		2	0		0	3		2	0		0	2		3	0		0	1		1	0		0
% Succ	50.0		33.3			0.0	60.0		40.0			0.0	50.0		75.0			0.0	33.3		33.3			0.0
Ave Error	3.9		3.9	41.5		8.1	4.6		2.2	41.1		9.3	5.7		1.6	40.4		9.1	7.2		3.1	38.1		13.4
Net Error	-3.5		2.1	41.5		-2.5	-3.6		0.0	41.1		-2.1	-5.2		1.1	40.4		-1.1	-7.2		1.8	38.1		-2.9
Std Dev	5.5		1.4	5.8		4.5	5.4		0.4	5.2		4.8	0.9		0.3	3.9		5.7	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: 03-28-26 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
03-28-26	82		47	52		30	85		54	53		38	76		59	48		44	70		68	46		51
03-27-26	84	55.9	58	50	28.0	33	81		47	50		29	85		52	52		38	75		59	51		42
03-26-26	78	61.0	68	52	49.5	49	82	55.9	56	49	28.0	31	81		45	51		29	83		51	53		38
03-25-26	78	50.7	58	45	42.1	43	77	61.0	65	52	49.5	45	82	55.9	53	48	28.0	29	80		46	50		27
03-24-26	83	50.0	52	50	31.1	35	77	50.7	54	45	42.1	41	76	61.0	63	50	49.5	48	82	55.9	58	49	28.0	26
03-23-26	81	49.6	46	52	31.8	30	82	50.0	50	49	31.1	34	77	50.7	53	46	42.1	39	77	61.0	59	50	49.5	46
03-22-26	81	50.5	59	50	39.0	38	81	49.6	48	51	31.8	30	81	50.0	52	50	31.1	36	78	50.7	55	47	42.1	41
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		1	0		4	0		3	0		2	0		2	1		2	0		1	1		2
% Succ			16.7			66.7			60.0			40.0			50.0	25.0		50.0			33.3	33.3		66.7
Ave Error	27.9		5.1	12.9		2.2	26.4		1.8	12.7		2.7	24.6		2.3	10.8		2.6	23.1		2.8	8.8		2.2
Net Error	27.9		3.9	12.9		1.1	26.4		1.2	12.7		-0.3	24.6		0.9	10.8		0.3	23.1		1.5	8.8		-2.2
Std Dev	5.1		2.2	8.0		1.6	4.6		1.4	7.3		1.1	0.8		0.3	4.6		0.8	0.0		0.0	0.0		0.0

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

Evening Forecasts

Updated: 03-28-26 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
03-28-26	82		31	54		53	85		39	53		61	78		46	50		68	71		52	48		74
03-27-26	83	28.0	31	50	55.9	47	82		28	51		51	85		38	52		59	75		43	50		67
03-26-26	77	49.5	47	53	61.0	56	82	28.0	32	49	55.9	45	81		30	51		51	84		39	54		61
03-25-26	77	42.1	41	45	50.7	66	77	49.5	45	52	61.0	54	82	28.0	30	49	55.9	46	81		29	50		50
03-24-26	83	31.1	35	50	50.0	55	77	42.1	40	45	50.7	64	77	49.5	46	51	61.0	53	82	28.0	28	50	55.9	47
03-23-26	81	31.8	31	52	49.6	51	82	31.1	35	48	50.0	54	77	42.1	40	44	50.7	59	78	49.5	46	50	61.0	58
03-22-26	81	39.0	38	50	50.5	46	82	31.8	30	51	49.6	50	82	31.1	35	50	50.0	54	76	42.1	40	46	50.7	61
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		3	2		1	0		1	2		1	0		1	1		0	0		1	0		0
% Succ			50.0	33.3		16.7			20.0	40.0		20.0			25.0	25.0		0.0			33.3			0.0
Ave Error	43.4		2.1	3.8		6.7	43.5		3.3	5.0		7.1	41.8		2.9	5.9		7.6	38.8		1.9	7.2		7.4
Net Error	43.4		0.2	-3.0		0.6	43.5		-0.1	-4.4		0.0	41.8		0.1	-5.9		-1.4	38.8		-1.9	-7.2		-0.5
Std Dev	9.7		1.1	2.7		4.3	9.4		0.8	2.0		3.2	6.1		0.4	0.5		1.2	0.0		0.0	0.0		0.0

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

Nighttime Forecasts

Updated: 03-28-26 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
03-28-26	54		26	85		52	53		37	78		58	50		47	71		68	48		51	69		74
03-27-26	50	28.0	25	82	55.9	44	51		28	85		51	52		38	75		59	50		45	67		68
03-26-26	53	49.5	47	82	61.0	55	49	28.0	31	81	55.9	46	51		30	84		51	54		39	76		56
03-25-26	45	42.1	39	77	50.7	64	52	49.5	45	82	61.0	54	49	28.0	30	81	55.9	46	50		30	82		50
03-24-26	50	31.1	34	77	50.0	53	45	42.1	39	77	50.7	64	51	49.5	46	82	61.0	53	50	28.0	29	81	55.9	47
03-23-26	52	31.8	30	82	49.6	51	48	31.1	35	77	50.0	54	44	42.1	40	78	50.7	61	50	49.5	46	82	61.0	59
03-22-26	50	39.0	41	82	50.5	48	51	31.8	31	82	49.6	51	50	31.1	36	76	50.0	53	46	42.1	40	77	50.7	55
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		2	0		1	0		1	0		1	2		1	0		0	1		1	0		1
% Succ			33.3			16.7			20.0			20.0	50.0		25.0			0.0	33.3		33.3			33.3
Ave Error	13.1		2.6	27.4		6.4	12.5		3.1	26.4		7.1	10.8		3.1	24.9		7.8	8.8		2.2	24.1		5.1
Net Error	13.1		-0.9	27.4		-0.5	12.5		-0.3	26.4		0.4	10.8		0.3	24.9		-1.2	8.8		-1.5	24.1		-2.2
Std Dev	7.7		0.4	3.4		4.4	7.3		0.6	2.5		3.0	5.1		0.6	0.1		1.1	0.0		0.0	0.0		0.0

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