Point Forecast: Boston MA  42.36N 71.07W (Elev. 13 ft)	Last Update: 2:20 pm EDT Aug 20, 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: 7pm Thu, Aug 20 20268pm Thu, Aug 20 20269pm Thu, Aug 20 202610pm Thu, Aug 20 202611pm Thu, Aug 20 202612am Fri, Aug 21 20261am Fri, Aug 21 20262am Fri, Aug 21 20263am Fri, Aug 21 20264am Fri, Aug 21 20265am Fri, Aug 21 20266am Fri, Aug 21 20267am Fri, Aug 21 20268am Fri, Aug 21 20269am Fri, Aug 21 202610am Fri, Aug 21 202611am Fri, Aug 21 202612pm Fri, Aug 21 20261pm Fri, Aug 21 20262pm Fri, Aug 21 20263pm Fri, Aug 21 20264pm Fri, Aug 21 20265pm Fri, Aug 21 20266pm Fri, Aug 21 20267pm Fri, Aug 21 20268pm Fri, Aug 21 20269pm Fri, Aug 21 202610pm Fri, Aug 21 202611pm Fri, Aug 21 202612am Sat, Aug 22 20261am Sat, Aug 22 20262am Sat, Aug 22 20263am Sat, Aug 22 20264am Sat, Aug 22 20265am Sat, Aug 22 20266am Sat, Aug 22 20267am Sat, Aug 22 20268am Sat, Aug 22 20269am Sat, Aug 22 202610am Sat, Aug 22 202611am Sat, Aug 22 202612pm Sat, Aug 22 20261pm Sat, Aug 22 20262pm Sat, Aug 22 20263pm Sat, Aug 22 20264pm Sat, Aug 22 20265pm Sat, Aug 22 20266pm Sat, Aug 22 20267pm Sat, Aug 22 20268pm Sat, Aug 22 20269pm Sat, Aug 22 202610pm Sat, Aug 22 202611pm Sat, Aug 22 202612am Sun, Aug 23 20261am Sun, Aug 23 20262am Sun, Aug 23 20263am Sun, Aug 23 20264am Sun, Aug 23 20265am Sun, Aug 23 20266am Sun, Aug 23 20267am Sun, Aug 23 20268am Sun, Aug 23 20269am Sun, Aug 23 202610am Sun, Aug 23 202611am Sun, Aug 23 202612pm Sun, Aug 23 20261pm Sun, Aug 23 20262pm Sun, Aug 23 20263pm Sun, Aug 23 20264pm Sun, Aug 23 20265pm Sun, Aug 23 20266pm Sun, Aug 23 20267pm Sun, Aug 23 20268pm Sun, Aug 23 20269pm Sun, Aug 23 202610pm Sun, Aug 23 202611pm Sun, Aug 23 202612am Mon, Aug 24 20261am Mon, Aug 24 20262am Mon, Aug 24 20263am Mon, Aug 24 20264am Mon, Aug 24 20265am Mon, Aug 24 20266am Mon, Aug 24 20267am Mon, Aug 24 20268am Mon, Aug 24 20269am Mon, Aug 24 202610am Mon, Aug 24 202611am Mon, Aug 24 202612pm Mon, Aug 24 20261pm Mon, Aug 24 20262pm Mon, Aug 24 20263pm Mon, Aug 24 20264pm Mon, Aug 24 20265pm Mon, Aug 24 20266pm Mon, Aug 24 20267pm Mon, Aug 24 20268pm Mon, Aug 24 20269pm Mon, Aug 24 202610pm Mon, Aug 24 202611pm Mon, Aug 24 202612am Tue, Aug 25 20261am Tue, Aug 25 20262am Tue, Aug 25 20263am Tue, Aug 25 20264am Tue, Aug 25 20265am Tue, Aug 25 20266am Tue, Aug 25 2026

Date	08/20					08/21
Hour (EDT)	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18
Temperature (°F)	79	76	76	74	74	73	72	70	70	68	67	67	67	69	70	71	71	71	71	71	70	70	70	69
Dewpoint (°F)	62	63	63	63	60	60	60	60	60	60	61	61	61	61	61	61	62	62	60	60	60	60	60	60
Heat Index (°F)	79	76	76
Surface Wind (mph)	5	5	7	8	10	10	9	9	8	8	8	8	7	7	8	9	10	10	10	10	10	10	10	9
Wind Dir	NE	NE	NE	N	N	N	NE	NE	NE	NE	NE	NE	NE	N	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE
Gust
Sky Cover (%)	96	98	98	98	99	100	99	99	99	99	98	97	96	83	80	78	80	77	78	79	79	80	80	77
Precipitation Potential (%)	53	75	77	78	80	72	64	56	44	33	21	22	22	22	21	21	20	21	22	23	24	25	26	32
Relative Humidity (%)	56	64	64	69	62	64	66	71	71	76	81	81	81	76	73	71	73	73	68	68	71	71	71	73
Rain	Chc	Ocnl	Ocnl	Ocnl	Ocnl	Lkly	Lkly	Lkly	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date						08/22
Hour (EDT)	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18
Temperature (°F)	68	67	66	66	66	65	65	64	64	65	65	64	65	65	68	69	70	70	71	71	70	70	70	70
Dewpoint (°F)	61	61	61	63	63	63	63	63	61	62	61	61	61	61	66	67	67	67	67	67	67	68	68	68
Heat Index (°F)
Surface Wind (mph)	9	8	8	8	8	8	8	8	8	9	9	9	9	9	9	10	10	10	10	9	8	8	7	6
Wind Dir	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE
Gust
Sky Cover (%)	73	70	72	74	76	79	81	83	87	91	95	94	93	92	86	87	88	87	87	86	86	85	85	85
Precipitation Potential (%)	38	43	49	55	61	63	65	68	70	60	51	54	57	60	62	65	68	68	68	62	62	62	62	63
Relative Humidity (%)	78	81	84	90	90	93	93	97	90	90	87	90	87	87	93	92	90	89	88	88	90	92	94	94
Rain	Chc	Chc	Chc	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Chc	Chc	Lkly	Lkly	SChc	Chc	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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