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Point Forecast: Chevy Chase MD  38.98N 77.09W (Elev. 344 ft)	Last Update: 4:05 pm EDT Aug 21, 2019

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Weather Elements Weather/Precipitation Fire 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 Vent Rate (x1000 mph-ft)

48-Hour Period Starting: 4pm Wed, Aug 21 20195pm Wed, Aug 21 20196pm Wed, Aug 21 20197pm Wed, Aug 21 20198pm Wed, Aug 21 20199pm Wed, Aug 21 201910pm Wed, Aug 21 201911pm Wed, Aug 21 201912am Thu, Aug 22 20191am Thu, Aug 22 20192am Thu, Aug 22 20193am Thu, Aug 22 20194am Thu, Aug 22 20195am Thu, Aug 22 20196am Thu, Aug 22 20197am Thu, Aug 22 20198am Thu, Aug 22 20199am Thu, Aug 22 201910am Thu, Aug 22 201911am Thu, Aug 22 201912pm Thu, Aug 22 20191pm Thu, Aug 22 20192pm Thu, Aug 22 20193pm Thu, Aug 22 20194pm Thu, Aug 22 20195pm Thu, Aug 22 20196pm Thu, Aug 22 20197pm Thu, Aug 22 20198pm Thu, Aug 22 20199pm Thu, Aug 22 201910pm Thu, Aug 22 201911pm Thu, Aug 22 201912am Fri, Aug 23 20191am Fri, Aug 23 20192am Fri, Aug 23 20193am Fri, Aug 23 20194am Fri, Aug 23 20195am Fri, Aug 23 20196am Fri, Aug 23 20197am Fri, Aug 23 20198am Fri, Aug 23 20199am Fri, Aug 23 201910am Fri, Aug 23 201911am Fri, Aug 23 201912pm Fri, Aug 23 20191pm Fri, Aug 23 20192pm Fri, Aug 23 20193pm Fri, Aug 23 20194pm Fri, Aug 23 20195pm Fri, Aug 23 20196pm Fri, Aug 23 20197pm Fri, Aug 23 20198pm Fri, Aug 23 20199pm Fri, Aug 23 201910pm Fri, Aug 23 201911pm Fri, Aug 23 201912am Sat, Aug 24 20191am Sat, Aug 24 20192am Sat, Aug 24 20193am Sat, Aug 24 20194am Sat, Aug 24 20195am Sat, Aug 24 20196am Sat, Aug 24 20197am Sat, Aug 24 20198am Sat, Aug 24 20199am Sat, Aug 24 201910am Sat, Aug 24 201911am Sat, Aug 24 201912pm Sat, Aug 24 20191pm Sat, Aug 24 20192pm Sat, Aug 24 20193pm Sat, Aug 24 20194pm Sat, Aug 24 20195pm Sat, Aug 24 20196pm Sat, Aug 24 20197pm Sat, Aug 24 20198pm Sat, Aug 24 20199pm Sat, Aug 24 201910pm Sat, Aug 24 201911pm Sat, Aug 24 201912am Sun, Aug 25 20191am Sun, Aug 25 20192am Sun, Aug 25 20193am Sun, Aug 25 20194am Sun, Aug 25 20195am Sun, Aug 25 20196am Sun, Aug 25 20197am Sun, Aug 25 20198am Sun, Aug 25 20199am Sun, Aug 25 201910am Sun, Aug 25 201911am Sun, Aug 25 201912pm Sun, Aug 25 20191pm Sun, Aug 25 20192pm Sun, Aug 25 20193pm Sun, Aug 25 20194pm Sun, Aug 25 20195pm Sun, Aug 25 20196pm Sun, Aug 25 20197pm Sun, Aug 25 20198pm Sun, Aug 25 20199pm Sun, Aug 25 201910pm Sun, Aug 25 201911pm Sun, Aug 25 201912am Mon, Aug 26 20191am Mon, Aug 26 20192am Mon, Aug 26 20193am Mon, Aug 26 2019

Date	08/21								08/22
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 (°F)	88	87	86	85	83	81	80	79	78	77	77	76	75	74	73	75	77	80	83	85	87	88	89	89
Dewpoint (°F)	71	72	72	72	73	73	73	73	73	72	72	72	71	71	71	71	71	71	71	71	70	69	68	68
Heat Index (°F)	96	95	93	91	89	86	84	79	78	77	77	76	75			75	77	83	88	90	92	92	93	93
Surface Wind (mph)	9	8	7	6	5	5	3	5	5	3	5	5	5	5	5	5	5	5	6	6	6	7	7	7
Wind Dir	SW	SW	SW	SW	SW	SW	SW	SW	W	SW	W	W	W	W	W	W	W	W	W	W	W	W	SW	SW
Gust
Sky Cover (%)	67	69	67	66	67	64	59	56	49	34	26	26	25	25	26	27	28	29	30	30	34	43	47	52
Precipitation Potential (%)	37	50	50	36	36	30	30	15	15	15	5	5	5	5	5	5	6	6	6	9	9	9	17	17
Relative Humidity (%)	54	56	59	65	72	77	79	82	85	85	85	87	87	90	93	87	82	74	67	63	57	54	50	50
Rain	Chc	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc
Thunder	Chc	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc
Date									08/23
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 (°F)	90	88	87	84	82	80	78	77	76	75	74	73	72	71	70	71	72	74	76	77	78	79	79	79
Dewpoint (°F)	68	69	70	70	71	72	72	72	72	71	70	69	69	68	67	67	66	66	65	65	65	64	64	64
Heat Index (°F)	94	92	92	88	86	84	78	77	76	75									76	77	78	79	79	79
Surface Wind (mph)	8	9	8	8	7	6	5	5	5	3	3	5	5	6	6	6	6	6	6	6	6	6	6	6
Wind Dir	SW	SW	SW	SW	W	W	W	W	W	NW	NW	NW	NW	N	N	N	N	N	N	N	N	N	N	N
Gust
Sky Cover (%)	61	65	67	71	73	74	75	76	76	75	75	79	86	90	86	77	72	76	84	88	84	76	72	73
Precipitation Potential (%)	17	31	31	31	46	46	46	46	46	46	29	29	29	29	29	29	43	43	43	43	43	43	54	54
Relative Humidity (%)	49	54	57	63	69	77	82	85	87	87	87	87	90	90	90	87	81	76	69	67	64	60	60	60
Rain	SChc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc
Thunder	SChc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	Chc	Chc

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