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Point Forecast: Chevy Chase MD  38.98N 77.09W (Elev. 344 ft)	Last Update: 10:02 am EDT Aug 9, 2020

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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) Atmospheric Dispersion Index Low Visibility Occurrence Risk Index

48-Hour Period Starting: 10am Sun, Aug 9 202011am Sun, Aug 9 202012pm Sun, Aug 9 20201pm Sun, Aug 9 20202pm Sun, Aug 9 20203pm Sun, Aug 9 20204pm Sun, Aug 9 20205pm Sun, Aug 9 20206pm Sun, Aug 9 20207pm Sun, Aug 9 20208pm Sun, Aug 9 20209pm Sun, Aug 9 202010pm Sun, Aug 9 202011pm Sun, Aug 9 202012am Mon, Aug 10 20201am Mon, Aug 10 20202am Mon, Aug 10 20203am Mon, Aug 10 20204am Mon, Aug 10 20205am Mon, Aug 10 20206am Mon, Aug 10 20207am Mon, Aug 10 20208am Mon, Aug 10 20209am Mon, Aug 10 202010am Mon, Aug 10 202011am Mon, Aug 10 202012pm Mon, Aug 10 20201pm Mon, Aug 10 20202pm Mon, Aug 10 20203pm Mon, Aug 10 20204pm Mon, Aug 10 20205pm Mon, Aug 10 20206pm Mon, Aug 10 20207pm Mon, Aug 10 20208pm Mon, Aug 10 20209pm Mon, Aug 10 202010pm Mon, Aug 10 202011pm Mon, Aug 10 202012am Tue, Aug 11 20201am Tue, Aug 11 20202am Tue, Aug 11 20203am Tue, Aug 11 20204am Tue, Aug 11 20205am Tue, Aug 11 20206am Tue, Aug 11 20207am Tue, Aug 11 20208am Tue, Aug 11 20209am Tue, Aug 11 202010am Tue, Aug 11 202011am Tue, Aug 11 202012pm Tue, Aug 11 20201pm Tue, Aug 11 20202pm Tue, Aug 11 20203pm Tue, Aug 11 20204pm Tue, Aug 11 20205pm Tue, Aug 11 20206pm Tue, Aug 11 20207pm Tue, Aug 11 20208pm Tue, Aug 11 20209pm Tue, Aug 11 202010pm Tue, Aug 11 202011pm Tue, Aug 11 202012am Wed, Aug 12 20201am Wed, Aug 12 20202am Wed, Aug 12 20203am Wed, Aug 12 20204am Wed, Aug 12 20205am Wed, Aug 12 20206am Wed, Aug 12 20207am Wed, Aug 12 20208am Wed, Aug 12 20209am Wed, Aug 12 202010am Wed, Aug 12 202011am Wed, Aug 12 202012pm Wed, Aug 12 20201pm Wed, Aug 12 20202pm Wed, Aug 12 20203pm Wed, Aug 12 20204pm Wed, Aug 12 20205pm Wed, Aug 12 20206pm Wed, Aug 12 20207pm Wed, Aug 12 20208pm Wed, Aug 12 20209pm Wed, Aug 12 202010pm Wed, Aug 12 202011pm Wed, Aug 12 202012am Thu, Aug 13 20201am Thu, Aug 13 20202am Thu, Aug 13 20203am Thu, Aug 13 20204am Thu, Aug 13 20205am Thu, Aug 13 20206am Thu, Aug 13 20207am Thu, Aug 13 20208am Thu, Aug 13 20209am Thu, Aug 13 202010am Thu, Aug 13 202011am Thu, Aug 13 202012pm Thu, Aug 13 20201pm Thu, Aug 13 20202pm Thu, Aug 13 20203pm Thu, Aug 13 20204pm Thu, Aug 13 20205pm Thu, Aug 13 20206pm Thu, Aug 13 20207pm Thu, Aug 13 20208pm Thu, Aug 13 20209pm Thu, Aug 13 2020

Date	08/09														08/10
Hour (EDT)	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09
Temperature (°F)	80	82	84	85	87	88	87	87	86	84	81	79	78	77	76	76	75	74	74	73	72	73	75	79
Dewpoint (°F)	70	71	72	72	71	71	71	71	71	71	72	72	72	73	73	72	73	73	72	72	72	72	73	72
Heat Index (°F)	83	87	90	91	93	94	93	93	91	89	85	79	78	77	76	75	75						75	78
Surface Wind (mph)	3	3	3	5	5	5	5	5	5	5	5	5	5	5	5	3	3	3	3	3	3	2	2	2
Wind Dir	SW	SW	SW	SW	SW	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	SW	SW	SW	SW
Gust
Sky Cover (%)	23	27	20	31	27	27	33	29	30	20	26	26	26	26	24	21	19	21	24	25	27	30	31	31
Precipitation Potential (%)	11	11	11	11	27	27	27	27	27	27	7	7	7	4	4	4	6	6	6	6	6	6	7	7
Relative Humidity (%)	73	69	67	65	59	57	59	59	61	65	74	79	82	87	90	94	94	90	93	93	97	97	94	85
Rain	--	--	--	--	Chc	Chc	Chc	Chc	Chc	Chc	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date															08/11
Hour (EDT)	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09
Temperature (°F)	82	85	88	89	90	91	90	89	87	85	83	81	79	78	77	77	76	75	74	74	74	75	76	79
Dewpoint (°F)	72	71	71	70	70	70	70	70	70	71	71	71	72	72	72	73	73	73	72	72	72	73	73	73
Heat Index (°F)	87	91	93	94	95	95	96	94	92	90	87	85	79	78	77	77	76	75				75	76	78
Surface Wind (mph)	2	3	5	5	6	6	6	6	6	6	6	6	6	6	6	5	5	5	5	5	3	2	2	3
Wind Dir	SW	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S
Gust
Sky Cover (%)	31	31	33	36	38	41	48	51	47	40	36	36	35	34	31	25	22	25	31	34	33	30	29	31
Precipitation Potential (%)	7	7	7	7	10	10	10	10	10	10	2	2	2	2	2	2	3	3	3	3	3	3	14	14
Relative Humidity (%)	74	65	59	54	50	50	52	54	57	61	65	72	77	82	85	85	87	90	93	93	93	94	90	85
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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