Point Forecast: 2 Miles W Petersham MA  42.49N 72.21W (Elev. 243 m)	Last Update: 3:06 pm EDT Sep 17, 2024

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

48-Hour Period Starting: 4pm Tue, Sep 17 20245pm Tue, Sep 17 20246pm Tue, Sep 17 20247pm Tue, Sep 17 20248pm Tue, Sep 17 20249pm Tue, Sep 17 202410pm Tue, Sep 17 202411pm Tue, Sep 17 202412am Wed, Sep 18 20241am Wed, Sep 18 20242am Wed, Sep 18 20243am Wed, Sep 18 20244am Wed, Sep 18 20245am Wed, Sep 18 20246am Wed, Sep 18 20247am Wed, Sep 18 20248am Wed, Sep 18 20249am Wed, Sep 18 202410am Wed, Sep 18 202411am Wed, Sep 18 202412pm Wed, Sep 18 20241pm Wed, Sep 18 20242pm Wed, Sep 18 20243pm Wed, Sep 18 20244pm Wed, Sep 18 20245pm Wed, Sep 18 20246pm Wed, Sep 18 20247pm Wed, Sep 18 20248pm Wed, Sep 18 20249pm Wed, Sep 18 202410pm Wed, Sep 18 202411pm Wed, Sep 18 202412am Thu, Sep 19 20241am Thu, Sep 19 20242am Thu, Sep 19 20243am Thu, Sep 19 20244am Thu, Sep 19 20245am Thu, Sep 19 20246am Thu, Sep 19 20247am Thu, Sep 19 20248am Thu, Sep 19 20249am Thu, Sep 19 202410am Thu, Sep 19 202411am Thu, Sep 19 202412pm Thu, Sep 19 20241pm Thu, Sep 19 20242pm Thu, Sep 19 20243pm Thu, Sep 19 20244pm Thu, Sep 19 20245pm Thu, Sep 19 20246pm Thu, Sep 19 20247pm Thu, Sep 19 20248pm Thu, Sep 19 20249pm Thu, Sep 19 202410pm Thu, Sep 19 202411pm Thu, Sep 19 202412am Fri, Sep 20 20241am Fri, Sep 20 20242am Fri, Sep 20 20243am Fri, Sep 20 20244am Fri, Sep 20 20245am Fri, Sep 20 20246am Fri, Sep 20 20247am Fri, Sep 20 20248am Fri, Sep 20 20249am Fri, Sep 20 202410am Fri, Sep 20 202411am Fri, Sep 20 202412pm Fri, Sep 20 20241pm Fri, Sep 20 20242pm Fri, Sep 20 20243pm Fri, Sep 20 20244pm Fri, Sep 20 20245pm Fri, Sep 20 20246pm Fri, Sep 20 20247pm Fri, Sep 20 20248pm Fri, Sep 20 20249pm Fri, Sep 20 202410pm Fri, Sep 20 202411pm Fri, Sep 20 202412am Sat, Sep 21 20241am Sat, Sep 21 20242am Sat, Sep 21 20243am Sat, Sep 21 20244am Sat, Sep 21 20245am Sat, Sep 21 20246am Sat, Sep 21 20247am Sat, Sep 21 20248am Sat, Sep 21 20249am Sat, Sep 21 202410am Sat, Sep 21 202411am Sat, Sep 21 202412pm Sat, Sep 21 20241pm Sat, Sep 21 20242pm Sat, Sep 21 20243pm Sat, Sep 21 20244pm Sat, Sep 21 20245pm Sat, Sep 21 20246pm Sat, Sep 21 20247pm Sat, Sep 21 20248pm Sat, Sep 21 20249pm Sat, Sep 21 202410pm Sat, Sep 21 202411pm Sat, Sep 21 202412am Sun, Sep 22 20241am Sun, Sep 22 20242am Sun, Sep 22 20243am Sun, Sep 22 2024

Date	09/17								09/18
Hour (EDT)	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15
Temperature (°C)	25	24	23	20	17	16	16	14	14	13	13	13	12	12	12	12	12	16	19	22	24	25	26	26
Dewpoint (°C)	12	12	13	12	13	13	13	13	14	13	13	13	12	12	11	11	12	14	14	15	14	14	13	14
Heat Index (°C)	25	24																			24	25	26	26
Surface Wind (mph)	5	5	3	2	2	2	2	2	1	2	2	2	2	1	1	1	1	1	1	2	3	3	5	6
Wind Dir	S	SW	S	S	S	S	S	S	SW	SW	SW	SW	W	NW	N	N	NE	NE	E	E	SE	SE	SE	SE
Gust
Sky Cover (%)	28	27	23	24	43	41	42	48	53	47	54	52	58	63	59	66	71	69	64	71	75	77	70	70
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	1	5	5	5	5	5	5	4	5	5	6	7	8	9
Relative Humidity (%)	43	46	53	61	78	84	87	93	100	100	100	100	100	100	96	96	100	87	73	64	55	50	47	48
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date									09/19
Hour (EDT)	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15
Temperature (°C)	25	24	22	20	18	17	17	17	17	16	16	16	16	15	15	15	16	17	19	21	22	22	22	22
Dewpoint (°C)	14	14	14	14	14	14	15	15	15	16	16	15	15	14	15	15	15	15	15	16	15	15	15	15
Heat Index (°C)	25	24
Surface Wind (mph)	5	5	5	5	5	3	3	2	2	3	3	5	5	6	6	6	6	6	7	7	7	7	7	7
Wind Dir	SE	SE	SE	E	E	E	E	E	E	NE	NE	NE	NE	NE	NE	NE	N	NE	NE	NE	NE	NE	NE	NE
Gust
Sky Cover (%)	71	71	75	79	83	85	88	90	90	91	91	93	93	94	91	88	85	85	84	84	82	80	77	77
Precipitation Potential (%)	10	10	11	12	13	14	16	20	21	19	20	20	20	20	19	18	16	18	20	23	22	22	22	22
Relative Humidity (%)	50	55	63	70	78	84	90	90	90	97	97	96	96	96	100	100	96	88	78	73	66	64	64	63
Rain	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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