Point Forecast: Saint Charles MD  38.61N 76.9W (Elev. 59 m)	Last Update: 7:58 am EDT May 5, 2024

[hide menu]

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: 9am Sun, May 5 202410am Sun, May 5 202411am Sun, May 5 202412pm Sun, May 5 20241pm Sun, May 5 20242pm Sun, May 5 20243pm Sun, May 5 20244pm Sun, May 5 20245pm Sun, May 5 20246pm Sun, May 5 20247pm Sun, May 5 20248pm Sun, May 5 20249pm Sun, May 5 202410pm Sun, May 5 202411pm Sun, May 5 202412am Mon, May 6 20241am Mon, May 6 20242am Mon, May 6 20243am Mon, May 6 20244am Mon, May 6 20245am Mon, May 6 20246am Mon, May 6 20247am Mon, May 6 20248am Mon, May 6 20249am Mon, May 6 202410am Mon, May 6 202411am Mon, May 6 202412pm Mon, May 6 20241pm Mon, May 6 20242pm Mon, May 6 20243pm Mon, May 6 20244pm Mon, May 6 20245pm Mon, May 6 20246pm Mon, May 6 20247pm Mon, May 6 20248pm Mon, May 6 20249pm Mon, May 6 202410pm Mon, May 6 202411pm Mon, May 6 202412am Tue, May 7 20241am Tue, May 7 20242am Tue, May 7 20243am Tue, May 7 20244am Tue, May 7 20245am Tue, May 7 20246am Tue, May 7 20247am Tue, May 7 20248am Tue, May 7 20249am Tue, May 7 202410am Tue, May 7 202411am Tue, May 7 202412pm Tue, May 7 20241pm Tue, May 7 20242pm Tue, May 7 20243pm Tue, May 7 20244pm Tue, May 7 20245pm Tue, May 7 20246pm Tue, May 7 20247pm Tue, May 7 20248pm Tue, May 7 20249pm Tue, May 7 202410pm Tue, May 7 202411pm Tue, May 7 202412am Wed, May 8 20241am Wed, May 8 20242am Wed, May 8 20243am Wed, May 8 20244am Wed, May 8 20245am Wed, May 8 20246am Wed, May 8 20247am Wed, May 8 20248am Wed, May 8 20249am Wed, May 8 202410am Wed, May 8 202411am Wed, May 8 202412pm Wed, May 8 20241pm Wed, May 8 20242pm Wed, May 8 20243pm Wed, May 8 20244pm Wed, May 8 20245pm Wed, May 8 20246pm Wed, May 8 20247pm Wed, May 8 20248pm Wed, May 8 20249pm Wed, May 8 202410pm Wed, May 8 202411pm Wed, May 8 202412am Thu, May 9 20241am Thu, May 9 20242am Thu, May 9 20243am Thu, May 9 20244am Thu, May 9 20245am Thu, May 9 20246am Thu, May 9 20247am Thu, May 9 20248am Thu, May 9 20249am Thu, May 9 202410am Thu, May 9 202411am Thu, May 9 202412pm Thu, May 9 20241pm Thu, May 9 20242pm Thu, May 9 20243pm Thu, May 9 20244pm Thu, May 9 20245pm Thu, May 9 20246pm Thu, May 9 20247pm Thu, May 9 20248pm Thu, May 9 2024

Date	05/05															05/06
Hour (EDT)	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08
Temperature (°C)	16	17	18	18	19	19	20	20	20	19	19	18	18	18	18	18	18	18	18	18	18	18	18	19
Dewpoint (°C)	16	16	17	17	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	19
Heat Index (°C)
Surface Wind (mph)	8	8	8	8	8	8	8	8	8	8	7	7	6	6	6	6	6	6	6	5	5	5	5	5
Wind Dir	SE	SE	S	S	S	S	S	S	SE	SE	SE	SE	SE	SE	S	S	S	S	S	S	S	SW	SW	SW
Gust
Sky Cover (%)	98	97	97	97	96	97	96	94	92	86	86	86	84	86	88	86	84	86	86	88	91	90	91	91
Precipitation Potential (%)	75	66	57	66	82	76	76	70	59	53	38	37	34	37	38	31	23	17	15	15	13	13	13	10
Relative Humidity (%)	97	97	93	93	93	90	87	87	87	90	93	97	97	97	97	100	97	100	100	97	100	100	100	100
Rain	Ocnl	Lkly	Lkly	Lkly	Ocnl	Ocnl	Ocnl	Lkly	Lkly	Chc	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	SChc	--	--	--	--
Thunder	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	Chc	Chc	Chc	--	--	--	--	--	--	--	--	--	--
Date																05/07
Hour (EDT)	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08
Temperature (°C)	20	21	22	23	24	25	26	26	25	24	23	22	21	20	19	18	18	18	18	18	18	18	18	19
Dewpoint (°C)	19	19	19	19	19	19	18	18	18	18	19	19	19	18	18	18	18	18	17	17	17	17	18	18
Heat Index (°C)					24	25	26	26	25	24
Surface Wind (mph)	5	6	6	5	5	5	5	5	5	5	3	3	3	5	5	3	5	5	2	1	3	5	5	5
Wind Dir	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	S	S	S	SW	W	W	SW	SW	SW	N	N	NE	NE	NE
Gust
Sky Cover (%)	93	94	93	90	85	81	79	79	80	82	84	86	86	80	79	80	82	84	86	88	89	88	86	84
Precipitation Potential (%)	10	10	7	7	7	44	44	44	44	44	44	51	51	51	51	51	51	27	27	27	27	27	27	13
Relative Humidity (%)	97	90	84	79	71	69	64	64	67	69	76	81	87	90	97	100	97	97	93	97	97	97	97	97
Rain	--	--	--	--	--	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	--
Thunder	--	--	--	--	--	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	--	--	--	Chc	Chc	Chc	SChc	SChc	SChc	--

English Units Forecast Discussion 7-Day Forecast Hourly Weather Graph Hazardous Weather Briefing Page Past Weather Information Interactive Forecast Map Home