Point Forecast: Cohasset MA  42.23N 70.77W (Elev. 13 ft)	Last Update: 12:29 am EDT Jul 28, 2026

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Weather Elements Fire Weather Aviation Weather Temperature (°F) Dewpoint (°F) Heat Index (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog Mixing Height  x100ftx100m Trans. Wind  ktmphkm/hm/s 20ft Wind  ktmphkm/hm/s Vent Rate (x1000 mph-ft) Dispersion Index Ceiling Height Visibility Thunder Potential

48-Hour Period Starting: 3am Tue, Jul 28 20264am Tue, Jul 28 20265am Tue, Jul 28 20266am Tue, Jul 28 20267am Tue, Jul 28 20268am Tue, Jul 28 20269am Tue, Jul 28 202610am Tue, Jul 28 202611am Tue, Jul 28 202612pm Tue, Jul 28 20261pm Tue, Jul 28 20262pm Tue, Jul 28 20263pm Tue, Jul 28 20264pm Tue, Jul 28 20265pm Tue, Jul 28 20266pm Tue, Jul 28 20267pm Tue, Jul 28 20268pm Tue, Jul 28 20269pm Tue, Jul 28 202610pm Tue, Jul 28 202611pm Tue, Jul 28 202612am Wed, Jul 29 20261am Wed, Jul 29 20262am Wed, Jul 29 20263am Wed, Jul 29 20264am Wed, Jul 29 20265am Wed, Jul 29 20266am Wed, Jul 29 20267am Wed, Jul 29 20268am Wed, Jul 29 20269am Wed, Jul 29 202610am Wed, Jul 29 202611am Wed, Jul 29 202612pm Wed, Jul 29 20261pm Wed, Jul 29 20262pm Wed, Jul 29 20263pm Wed, Jul 29 20264pm Wed, Jul 29 20265pm Wed, Jul 29 20266pm Wed, Jul 29 20267pm Wed, Jul 29 20268pm Wed, Jul 29 20269pm Wed, Jul 29 202610pm Wed, Jul 29 202611pm Wed, Jul 29 202612am Thu, Jul 30 20261am Thu, Jul 30 20262am Thu, Jul 30 20263am Thu, Jul 30 20264am Thu, Jul 30 20265am Thu, Jul 30 20266am Thu, Jul 30 20267am Thu, Jul 30 20268am Thu, Jul 30 20269am Thu, Jul 30 202610am Thu, Jul 30 202611am Thu, Jul 30 202612pm Thu, Jul 30 20261pm Thu, Jul 30 20262pm Thu, Jul 30 20263pm Thu, Jul 30 20264pm Thu, Jul 30 20265pm Thu, Jul 30 20266pm Thu, Jul 30 20267pm Thu, Jul 30 20268pm Thu, Jul 30 20269pm Thu, Jul 30 202610pm Thu, Jul 30 202611pm Thu, Jul 30 202612am Fri, Jul 31 20261am Fri, Jul 31 20262am Fri, Jul 31 20263am Fri, Jul 31 20264am Fri, Jul 31 20265am Fri, Jul 31 20266am Fri, Jul 31 20267am Fri, Jul 31 20268am Fri, Jul 31 20269am Fri, Jul 31 202610am Fri, Jul 31 202611am Fri, Jul 31 202612pm Fri, Jul 31 20261pm Fri, Jul 31 20262pm Fri, Jul 31 20263pm Fri, Jul 31 20264pm Fri, Jul 31 20265pm Fri, Jul 31 20266pm Fri, Jul 31 20267pm Fri, Jul 31 20268pm Fri, Jul 31 20269pm Fri, Jul 31 202610pm Fri, Jul 31 202611pm Fri, Jul 31 202612am Sat, Aug 1 20261am Sat, Aug 1 20262am Sat, Aug 1 20263am Sat, Aug 1 20264am Sat, Aug 1 20265am Sat, Aug 1 20266am Sat, Aug 1 20267am Sat, Aug 1 20268am Sat, Aug 1 20269am Sat, Aug 1 202610am Sat, Aug 1 202611am Sat, Aug 1 202612pm Sat, Aug 1 20261pm Sat, Aug 1 20262pm Sat, Aug 1 2026

Date	07/28																					07/29
Hour (EDT)	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02
Temperature (°F)	66	66	66	66	67	69	71	73	74	75	75	75	75	75	74	74	73	71	70	69	69	68	68	68
Dewpoint (°F)	66	65	66	66	67	68	69	69	70	70	69	69	68	68	67	66	66	66	66	66	66	66	66	66
Heat Index (°F)										75	75	75	75	75
Surface Wind (mph)	5	5	5	5	5	6	7	8	8	10	11	13	13	14	14	14	11	10	9	9	9	9	10	10
Wind Dir	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	SE	SE	SE	SE	SE
Gust
Sky Cover (%)	26	28	35	42	44	57	59	52	55	53	61	66	51	49	45	44	54	51	55	63	53	60	83	73
Precipitation Potential (%)	1	0	1	2	2	6	6	9	14	13	18	16	15	11	9	7	4	3	4	5	6	7	9	14
Relative Humidity (%)	100	97	100	100	100	96	92	88	87	85	82	82	79	79	78	77	79	85	87	89	91	93	93	93
Rain	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--
Date																						07/30
Hour (EDT)	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02
Temperature (°F)	68	67	67	67	67	69	69	69	69	69	69	68	68	68	68	68	68	68	67	67	67	67	66	66
Dewpoint (°F)	66	66	66	66	67	67	68	69	69	69	69	69	69	69	69	69	68	68	68	68	67	67	67	67
Heat Index (°F)
Surface Wind (mph)	11	13	14	14	15	15	16	17	17	17	17	17	17	17	16	16	14	13	11	10	9	8	8	8
Wind Dir	SE	SE	SE	SE	SE	SE	SE	SE	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E
Gust
Sky Cover (%)	83	80	79	87	89	86	83	85	84	87	84	87	89	89	91	95	96	99	90	91	91	90	89	88
Precipitation Potential (%)	16	18	22	33	63	79	87	81	84	93	92	91	87	89	93	94	96	70	73	76	80	77	75	69
Relative Humidity (%)	93	95	95	95	99	95	98	100	100	100	100	100	100	100	100	100	99	100	100	100	100	100	100	100
Rain	SChc	SChc	SChc	Chc	Lkly	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Lkly	Lkly	Ocnl	Ocnl	Ocnl	Ocnl	Lkly
Thunder	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--

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