weather.gov

Home

News

Organization

Search for:  NWSAll NOAA

Point Forecast: West Chatham MA  41.68N 69.99W (Elev. 33 ft)	Last Update: 3:30 pm EDT Sep 20, 2018

[hide menu]  |  Font Size: A A A

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 Haines Index Lightning Activity Level 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: 6pm Thu, Sep 20 20187pm Thu, Sep 20 20188pm Thu, Sep 20 20189pm Thu, Sep 20 201810pm Thu, Sep 20 201811pm Thu, Sep 20 201812am Fri, Sep 21 20181am Fri, Sep 21 20182am Fri, Sep 21 20183am Fri, Sep 21 20184am Fri, Sep 21 20185am Fri, Sep 21 20186am Fri, Sep 21 20187am Fri, Sep 21 20188am Fri, Sep 21 20189am Fri, Sep 21 201810am Fri, Sep 21 201811am Fri, Sep 21 201812pm Fri, Sep 21 20181pm Fri, Sep 21 20182pm Fri, Sep 21 20183pm Fri, Sep 21 20184pm Fri, Sep 21 20185pm Fri, Sep 21 20186pm Fri, Sep 21 20187pm Fri, Sep 21 20188pm Fri, Sep 21 20189pm Fri, Sep 21 201810pm Fri, Sep 21 201811pm Fri, Sep 21 201812am Sat, Sep 22 20181am Sat, Sep 22 20182am Sat, Sep 22 20183am Sat, Sep 22 20184am Sat, Sep 22 20185am Sat, Sep 22 20186am Sat, Sep 22 20187am Sat, Sep 22 20188am Sat, Sep 22 20189am Sat, Sep 22 201810am Sat, Sep 22 201811am Sat, Sep 22 201812pm Sat, Sep 22 20181pm Sat, Sep 22 20182pm Sat, Sep 22 20183pm Sat, Sep 22 20184pm Sat, Sep 22 20185pm Sat, Sep 22 20186pm Sat, Sep 22 20187pm Sat, Sep 22 20188pm Sat, Sep 22 20189pm Sat, Sep 22 201810pm Sat, Sep 22 201811pm Sat, Sep 22 201812am Sun, Sep 23 20181am Sun, Sep 23 20182am Sun, Sep 23 20183am Sun, Sep 23 20184am Sun, Sep 23 20185am Sun, Sep 23 20186am Sun, Sep 23 20187am Sun, Sep 23 20188am Sun, Sep 23 20189am Sun, Sep 23 201810am Sun, Sep 23 201811am Sun, Sep 23 201812pm Sun, Sep 23 20181pm Sun, Sep 23 20182pm Sun, Sep 23 20183pm Sun, Sep 23 20184pm Sun, Sep 23 20185pm Sun, Sep 23 20186pm Sun, Sep 23 20187pm Sun, Sep 23 20188pm Sun, Sep 23 20189pm Sun, Sep 23 201810pm Sun, Sep 23 201811pm Sun, Sep 23 201812am Mon, Sep 24 20181am Mon, Sep 24 20182am Mon, Sep 24 20183am Mon, Sep 24 20184am Mon, Sep 24 20185am Mon, Sep 24 20186am Mon, Sep 24 20187am Mon, Sep 24 20188am Mon, Sep 24 20189am Mon, Sep 24 201810am Mon, Sep 24 201811am Mon, Sep 24 201812pm Mon, Sep 24 20181pm Mon, Sep 24 20182pm Mon, Sep 24 20183pm Mon, Sep 24 20184pm Mon, Sep 24 20185pm Mon, Sep 24 20186pm Mon, Sep 24 20187pm Mon, Sep 24 20188pm Mon, Sep 24 20189pm Mon, Sep 24 201810pm Mon, Sep 24 201811pm Mon, Sep 24 201812am Tue, Sep 25 20181am Tue, Sep 25 20182am Tue, Sep 25 20183am Tue, Sep 25 20184am Tue, Sep 25 20185am Tue, Sep 25 2018

Date	09/20						09/21
Hour (EDT)	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17
Temperature (°F)	64	63	62	62	61	61	61	60	60	60	60	59	60	60	61	63	65	67	68	69	70	71	71	70
Dewpoint (°F)	56	55	55	55	55	55	55	55	54	54	54	53	54	54	55	55	56	56	56	57	57	58	59	60
Heat Index (°F)
Surface Wind (mph)	9	9	8	8	7	7	7	6	6	6	6	6	6	7	7	8	9	10	10	11	11	11	11	11
Wind Dir	NE	NE	NE	NE	E	E	E	E	E	E	E	E	E	SE	SE	SE	SE	S	S	S	S	S	S	S
Gust																							22	23
Sky Cover (%)	93	91	89	84	78	73	67	62	56	57	59	60	59	57	56	53	49	46	43	40	37	39	41	43
Precipitation Potential (%)	18	10	1	1	2	2	2	2	2	2	1	1	1	1	1	1	1	1	1	1	1	1	2	2
Relative Humidity (%)	75	75	78	78	81	81	81	84	81	81	81	80	81	81	81	75	73	68	65	66	63	63	66	71
Rain	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date							09/22
Hour (EDT)	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17
Temperature (°F)	70	69	68	68	68	67	67	67	67	66	66	66	66	66	68	69	70	71	71	71	71	71	70	69
Dewpoint (°F)	61	61	62	63	63	64	64	65	65	65	65	65	65	66	66	64	63	61	59	58	57	56	56	55
Heat Index (°F)
Surface Wind (mph)	11	11	11	13	15	16	17	17	18	18	20	20	17	16	14	20	17	17	17	17	17	17	16	16
Wind Dir	S	S	S	S	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	W	W	NW	NW	NW	N	N	N	N	N
Gust	24	26	28	30	32	34	36	36	37	37	37	37	33	30	26
Sky Cover (%)	43	42	42	46	50	54	51	48	45	54	63	72	72	72	72	59	45	32	35	37	40	40	40	40
Precipitation Potential (%)	3	3	4	4	4	4	6	8	10	16	22	25	28	28	23	18	13	8	8	7	7	7	7	7
Relative Humidity (%)	73	76	81	84	84	90	90	93	93	97	97	97	97	100	93	84	78	71	66	63	61	59	61	61
Rain	--	--	--	--	--	--	--	--	--	SChc	SChc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	SChc	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--

International System of Units Forecast Discussion 7-Day Forecast Hourly Weather Graph Hazardous Weather Regional Weather Conditions Past Weather Information Interactive Forecast Map Home

---

Webmaster NOAA's National Weather Service Norton, MA

Disclaimer Credits Glossary

Privacy Policy About Us Career Opportunities