Point Forecast: 3 Miles SSW Mercersburg PA  39.78N 77.94W (Elev. 551 ft)	Last Update: 11:17 pm EDT May 31, 2024

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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) Davis Stability Index Atmospheric Dispersion Index Low Visibility Occurrence Risk Index Ceiling Height Visibility Thunder Potential

48-Hour Period Starting: 11pm Fri, May 31 202412am Sat, Jun 1 20241am Sat, Jun 1 20242am Sat, Jun 1 20243am Sat, Jun 1 20244am Sat, Jun 1 20245am Sat, Jun 1 20246am Sat, Jun 1 20247am Sat, Jun 1 20248am Sat, Jun 1 20249am Sat, Jun 1 202410am Sat, Jun 1 202411am Sat, Jun 1 202412pm Sat, Jun 1 20241pm Sat, Jun 1 20242pm Sat, Jun 1 20243pm Sat, Jun 1 20244pm Sat, Jun 1 20245pm Sat, Jun 1 20246pm Sat, Jun 1 20247pm Sat, Jun 1 20248pm Sat, Jun 1 20249pm Sat, Jun 1 202410pm Sat, Jun 1 202411pm Sat, Jun 1 202412am Sun, Jun 2 20241am Sun, Jun 2 20242am Sun, Jun 2 20243am Sun, Jun 2 20244am Sun, Jun 2 20245am Sun, Jun 2 20246am Sun, Jun 2 20247am Sun, Jun 2 20248am Sun, Jun 2 20249am Sun, Jun 2 202410am Sun, Jun 2 202411am Sun, Jun 2 202412pm Sun, Jun 2 20241pm Sun, Jun 2 20242pm Sun, Jun 2 20243pm Sun, Jun 2 20244pm Sun, Jun 2 20245pm Sun, Jun 2 20246pm Sun, Jun 2 20247pm Sun, Jun 2 20248pm Sun, Jun 2 20249pm Sun, Jun 2 202410pm Sun, Jun 2 202411pm Sun, Jun 2 202412am Mon, Jun 3 20241am Mon, Jun 3 20242am Mon, Jun 3 20243am Mon, Jun 3 20244am Mon, Jun 3 20245am Mon, Jun 3 20246am Mon, Jun 3 20247am Mon, Jun 3 20248am Mon, Jun 3 20249am Mon, Jun 3 202410am Mon, Jun 3 202411am Mon, Jun 3 202412pm Mon, Jun 3 20241pm Mon, Jun 3 20242pm Mon, Jun 3 20243pm Mon, Jun 3 20244pm Mon, Jun 3 20245pm Mon, Jun 3 20246pm Mon, Jun 3 20247pm Mon, Jun 3 20248pm Mon, Jun 3 20249pm Mon, Jun 3 202410pm Mon, Jun 3 202411pm Mon, Jun 3 202412am Tue, Jun 4 20241am Tue, Jun 4 20242am Tue, Jun 4 20243am Tue, Jun 4 20244am Tue, Jun 4 20245am Tue, Jun 4 20246am Tue, Jun 4 20247am Tue, Jun 4 20248am Tue, Jun 4 20249am Tue, Jun 4 202410am Tue, Jun 4 202411am Tue, Jun 4 202412pm Tue, Jun 4 20241pm Tue, Jun 4 20242pm Tue, Jun 4 20243pm Tue, Jun 4 20244pm Tue, Jun 4 20245pm Tue, Jun 4 20246pm Tue, Jun 4 20247pm Tue, Jun 4 20248pm Tue, Jun 4 20249pm Tue, Jun 4 202410pm Tue, Jun 4 202411pm Tue, Jun 4 202412am Wed, Jun 5 20241am Wed, Jun 5 20242am Wed, Jun 5 20243am Wed, Jun 5 20244am Wed, Jun 5 20245am Wed, Jun 5 20246am Wed, Jun 5 20247am Wed, Jun 5 20248am Wed, Jun 5 20249am Wed, Jun 5 202410am Wed, Jun 5 2024

Date	05/31	06/01
Hour (EDT)	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22
Temperature (°F)	55	54	53	52	51	50	49	48	52	58	63	68	73	75	77	78	79	80	80	79	76	73	70	66
Dewpoint (°F)	46	45	45	45	44	44	44	44	46	48	48	48	48	47	47	46	46	47	47	48	49	51	50	50
Heat Index (°F)														75	77	78	79	79	79	79	76
Surface Wind (mph)	2	1	1	0	0	0	0	0	0	0	0	1	1	2	2	2	3	3	3	5	5	3	2	1
Wind Dir	W	W	W	W	W	NW	NW	W	SW	S	S	S	SE	S	S	S	S	S	SE	SE	SE	SE	SE	SE
Gust
Sky Cover (%)	0	0	0	0	0	0	0	0	0	1	4	8	12	13	15	20	20	21	21	25	28	32	37	42
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 (%)	71	73	74	76	78	81	83	86	80	70	59	49	41	37	34	32	32	31	31	34	39	45	50	55
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date		06/02
Hour (EDT)	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22
Temperature (°F)	63	62	61	60	59	58	58	59	61	63	66	69	72	72	73	73	73	72	72	71	70	69	67	66
Dewpoint (°F)	50	49	49	49	49	49	50	51	52	54	55	56	58	58	58	58	59	59	60	61	61	62	61	61
Heat Index (°F)
Surface Wind (mph)	1	1	2	2	2	1	1	1	1	1	2	2	3	5	6	6	6	5	5	5	3	3	3	2
Wind Dir	E	E	E	E	E	SE	SE	SE	SE	SE	S	S	S	S	S	S	S	S	SW	S	S	S	S	SW
Gust
Sky Cover (%)	47	51	54	58	63	68	73	74	75	77	77	78	79	79	80	80	81	81	82	80	79	78	76	75
Precipitation Potential (%)	0	0	0	0	1	1	1	2	2	5	8	11	13	16	19	24	32	40	41	43	44	45	45	45
Relative Humidity (%)	61	63	65	67	69	72	75	74	72	71	67	64	60	60	60	59	61	64	66	69	73	77	80	83
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--

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