Point Forecast: Portland ME  43.66N 70.27W (Elev. 7 ft)	Last Update: 6:01 pm EDT Sep 4, 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) Ceiling Height Visibility

48-Hour Period Starting: 10pm Fri, Sep 4 202611pm Fri, Sep 4 202612am Sat, Sep 5 20261am Sat, Sep 5 20262am Sat, Sep 5 20263am Sat, Sep 5 20264am Sat, Sep 5 20265am Sat, Sep 5 20266am Sat, Sep 5 20267am Sat, Sep 5 20268am Sat, Sep 5 20269am Sat, Sep 5 202610am Sat, Sep 5 202611am Sat, Sep 5 202612pm Sat, Sep 5 20261pm Sat, Sep 5 20262pm Sat, Sep 5 20263pm Sat, Sep 5 20264pm Sat, Sep 5 20265pm Sat, Sep 5 20266pm Sat, Sep 5 20267pm Sat, Sep 5 20268pm Sat, Sep 5 20269pm Sat, Sep 5 202610pm Sat, Sep 5 202611pm Sat, Sep 5 202612am Sun, Sep 6 20261am Sun, Sep 6 20262am Sun, Sep 6 20263am Sun, Sep 6 20264am Sun, Sep 6 20265am Sun, Sep 6 20266am Sun, Sep 6 20267am Sun, Sep 6 20268am Sun, Sep 6 20269am Sun, Sep 6 202610am Sun, Sep 6 202611am Sun, Sep 6 202612pm Sun, Sep 6 20261pm Sun, Sep 6 20262pm Sun, Sep 6 20263pm Sun, Sep 6 20264pm Sun, Sep 6 20265pm Sun, Sep 6 20266pm Sun, Sep 6 20267pm Sun, Sep 6 20268pm Sun, Sep 6 20269pm Sun, Sep 6 202610pm Sun, Sep 6 202611pm Sun, Sep 6 202612am Mon, Sep 7 20261am Mon, Sep 7 20262am Mon, Sep 7 20263am Mon, Sep 7 20264am Mon, Sep 7 20265am Mon, Sep 7 20266am Mon, Sep 7 20267am Mon, Sep 7 20268am Mon, Sep 7 20269am Mon, Sep 7 202610am Mon, Sep 7 202611am Mon, Sep 7 202612pm Mon, Sep 7 20261pm Mon, Sep 7 20262pm Mon, Sep 7 20263pm Mon, Sep 7 20264pm Mon, Sep 7 20265pm Mon, Sep 7 20266pm Mon, Sep 7 20267pm Mon, Sep 7 20268pm Mon, Sep 7 20269pm Mon, Sep 7 202610pm Mon, Sep 7 202611pm Mon, Sep 7 202612am Tue, Sep 8 20261am Tue, Sep 8 20262am Tue, Sep 8 20263am Tue, Sep 8 20264am Tue, Sep 8 20265am Tue, Sep 8 20266am Tue, Sep 8 20267am Tue, Sep 8 20268am Tue, Sep 8 20269am Tue, Sep 8 202610am Tue, Sep 8 202611am Tue, Sep 8 202612pm Tue, Sep 8 20261pm Tue, Sep 8 20262pm Tue, Sep 8 20263pm Tue, Sep 8 20264pm Tue, Sep 8 20265pm Tue, Sep 8 20266pm Tue, Sep 8 20267pm Tue, Sep 8 20268pm Tue, Sep 8 20269pm Tue, Sep 8 202610pm Tue, Sep 8 202611pm Tue, Sep 8 202612am Wed, Sep 9 20261am Wed, Sep 9 20262am Wed, Sep 9 20263am Wed, Sep 9 20264am Wed, Sep 9 20265am Wed, Sep 9 20266am Wed, Sep 9 20267am Wed, Sep 9 20268am Wed, Sep 9 20269am Wed, Sep 9 2026

Date	09/04		09/05
Hour (EDT)	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21
Temperature (°F)	68	66	66	65	64	64	63	62	62	62	63	64	65	65	65	66	66	67	66	66	65	63	63	63
Dewpoint (°F)	61	61	61	61	60	60	59	59	58	58	57	58	58	57	57	57	57	57	57	55	56	56	55	56
Heat Index (°F)
Surface Wind (mph)	6	6	6	6	6	6	6	6	7	8	9	10	10	11	11	11	11	11	10	10	9	8	7	7
Wind Dir	NW	NW	NW	NW	NW	NW	N	N	N	N	N	N	N	N	N	N	N	N	NE	NE	NE	N	N	N
Gust												20	20	22	22	22	22	22	20	20
Sky Cover (%)	43	34	27	11	9	12	16	30	50	38	37	41	59	65	63	67	65	60	65	53	47	38	36	17
Precipitation Potential (%)	1	1	1	1	1	1	1	1	1	1	5	4	6	6	9	8	9	7	7	7	0	1	3	4
Relative Humidity (%)	78	84	84	87	87	87	87	90	87	87	81	81	78	75	75	73	73	70	73	68	73	78	75	78
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date			09/06
Hour (EDT)	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21
Temperature (°F)	63	62	61	60	60	59	58	58	57	57	58	59	61	62	63	64	65	65	66	66	65	63	62	61
Dewpoint (°F)	56	55	55	55	54	53	53	52	51	51	50	51	50	49	48	48	48	48	48	49	50	51	51	51
Heat Index (°F)
Surface Wind (mph)	7	7	7	7	7	7	8	8	8	9	9	10	10	10	10	9	9	8	8	7	6	5	3	3
Wind Dir	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N
Gust												20	20	20	20
Sky Cover (%)	15	12	19	20	15	10	9	9	12	0	12	13	12	11	15	20	24	25	27	28	23	18	13	13
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	0	0	0	0	0	0	0
Relative Humidity (%)	78	78	81	84	81	80	83	80	80	80	75	75	67	62	58	56	54	54	52	54	58	65	67	70
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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