Point Forecast: Greenbelt MD  38.99N 76.89W (Elev. 31 m)	Last Update: 3:00 pm EDT Sep 11, 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 Vent Rate (x1000 mph-m) Atmospheric Dispersion Index Low Visibility Occurrence Risk Index Ceiling Height Visibility

48-Hour Period Starting: 3pm Wed, Sep 11 20244pm Wed, Sep 11 20245pm Wed, Sep 11 20246pm Wed, Sep 11 20247pm Wed, Sep 11 20248pm Wed, Sep 11 20249pm Wed, Sep 11 202410pm Wed, Sep 11 202411pm Wed, Sep 11 202412am Thu, Sep 12 20241am Thu, Sep 12 20242am Thu, Sep 12 20243am Thu, Sep 12 20244am Thu, Sep 12 20245am Thu, Sep 12 20246am Thu, Sep 12 20247am Thu, Sep 12 20248am Thu, Sep 12 20249am Thu, Sep 12 202410am Thu, Sep 12 202411am Thu, Sep 12 202412pm Thu, Sep 12 20241pm Thu, Sep 12 20242pm Thu, Sep 12 20243pm Thu, Sep 12 20244pm Thu, Sep 12 20245pm Thu, Sep 12 20246pm Thu, Sep 12 20247pm Thu, Sep 12 20248pm Thu, Sep 12 20249pm Thu, Sep 12 202410pm Thu, Sep 12 202411pm Thu, Sep 12 202412am Fri, Sep 13 20241am Fri, Sep 13 20242am Fri, Sep 13 20243am Fri, Sep 13 20244am Fri, Sep 13 20245am Fri, Sep 13 20246am Fri, Sep 13 20247am Fri, Sep 13 20248am Fri, Sep 13 20249am Fri, Sep 13 202410am Fri, Sep 13 202411am Fri, Sep 13 202412pm Fri, Sep 13 20241pm Fri, Sep 13 20242pm Fri, Sep 13 20243pm Fri, Sep 13 20244pm Fri, Sep 13 20245pm Fri, Sep 13 20246pm Fri, Sep 13 20247pm Fri, Sep 13 20248pm Fri, Sep 13 20249pm Fri, Sep 13 202410pm Fri, Sep 13 202411pm Fri, Sep 13 202412am Sat, Sep 14 20241am Sat, Sep 14 20242am Sat, Sep 14 20243am Sat, Sep 14 20244am Sat, Sep 14 20245am Sat, Sep 14 20246am Sat, Sep 14 20247am Sat, Sep 14 20248am Sat, Sep 14 20249am Sat, Sep 14 202410am Sat, Sep 14 202411am Sat, Sep 14 202412pm Sat, Sep 14 20241pm Sat, Sep 14 20242pm Sat, Sep 14 20243pm Sat, Sep 14 20244pm Sat, Sep 14 20245pm Sat, Sep 14 20246pm Sat, Sep 14 20247pm Sat, Sep 14 20248pm Sat, Sep 14 20249pm Sat, Sep 14 202410pm Sat, Sep 14 202411pm Sat, Sep 14 202412am Sun, Sep 15 20241am Sun, Sep 15 20242am Sun, Sep 15 20243am Sun, Sep 15 20244am Sun, Sep 15 20245am Sun, Sep 15 20246am Sun, Sep 15 20247am Sun, Sep 15 20248am Sun, Sep 15 20249am Sun, Sep 15 202410am Sun, Sep 15 202411am Sun, Sep 15 202412pm Sun, Sep 15 20241pm Sun, Sep 15 20242pm Sun, Sep 15 20243pm Sun, Sep 15 20244pm Sun, Sep 15 20245pm Sun, Sep 15 20246pm Sun, Sep 15 20247pm Sun, Sep 15 20248pm Sun, Sep 15 20249pm Sun, Sep 15 202410pm Sun, Sep 15 202411pm Sun, Sep 15 202412am Mon, Sep 16 20241am Mon, Sep 16 20242am Mon, Sep 16 2024

Date	09/11									09/12
Hour (EDT)	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14
Temperature (°C)	28	29	28	27	26	23	22	21	20	19	18	18	17	17	16	16	16	17	19	21	23	24	26	26
Dewpoint (°C)	13	12	12	12	12	12	12	13	15	16	16	16	16	16	16	15	15	16	16	16	14	14	13	12
Heat Index (°C)	28	28	28	27	26																	24	26	26
Surface Wind (mph)	8	8	9	8	8	6	5	5	5	3	2	3	3	2	2	2	2	2	3	5	6	6	7	7
Wind Dir	E	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	E	E	E	E	NE	NE	NE	E	E	E	E	E	E
Gust
Sky Cover (%)	22	34	25	19	18	9	1	1	2	2	4	7	11	19	25	28	37	36	36	19	16	19	16	18
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	40	36	36	38	42	50	55	63	73	81	84	90	93	93	97	96	93	93	84	71	57	52	47	42
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date										09/13
Hour (EDT)	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14
Temperature (°C)	27	27	27	26	24	22	21	19	18	18	17	17	16	16	17	17	17	18	19	21	23	24	25	26
Dewpoint (°C)	12	13	13	14	14	15	16	16	16	16	17	17	16	16	17	17	17	17	17	17	17	17	17	16
Heat Index (°C)	27	27	27	26	24																	24	25	26
Surface Wind (mph)	7	7	7	7	6	6	5	5	5	3	3	3	3	3	3	3	3	5	5	6	6	6	6	6
Wind Dir	E	E	E	E	E	E	E	E	E	E	E	E	E	E	NE	NE	NE	NE	NE	NE	E	E	E	E
Gust
Sky Cover (%)	15	19	27	35	42	40	35	36	38	40	42	41	49	55	63	69	78	84	82	78	76	67	58	61
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1
Relative Humidity (%)	41	42	44	48	55	64	73	81	87	90	97	100	100	100	100	100	100	97	90	78	71	66	60	56
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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