Point Forecast: Chambersburg PA  39.93N 77.66W (Elev. 617 ft)	Last Update: 10:01 pm EDT Oct 3, 2025

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Weather Elements Fire Weather Aviation Weather Temperature (°F) Dewpoint (°F) Wind Chill (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Snow Freezing Rain Sleet Fog Mixing Height  x100ftx100m 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: 10pm Fri, Oct 3 202511pm Fri, Oct 3 202512am Sat, Oct 4 20251am Sat, Oct 4 20252am Sat, Oct 4 20253am Sat, Oct 4 20254am Sat, Oct 4 20255am Sat, Oct 4 20256am Sat, Oct 4 20257am Sat, Oct 4 20258am Sat, Oct 4 20259am Sat, Oct 4 202510am Sat, Oct 4 202511am Sat, Oct 4 202512pm Sat, Oct 4 20251pm Sat, Oct 4 20252pm Sat, Oct 4 20253pm Sat, Oct 4 20254pm Sat, Oct 4 20255pm Sat, Oct 4 20256pm Sat, Oct 4 20257pm Sat, Oct 4 20258pm Sat, Oct 4 20259pm Sat, Oct 4 202510pm Sat, Oct 4 202511pm Sat, Oct 4 202512am Sun, Oct 5 20251am Sun, Oct 5 20252am Sun, Oct 5 20253am Sun, Oct 5 20254am Sun, Oct 5 20255am Sun, Oct 5 20256am Sun, Oct 5 20257am Sun, Oct 5 20258am Sun, Oct 5 20259am Sun, Oct 5 202510am Sun, Oct 5 202511am Sun, Oct 5 202512pm Sun, Oct 5 20251pm Sun, Oct 5 20252pm Sun, Oct 5 20253pm Sun, Oct 5 20254pm Sun, Oct 5 20255pm Sun, Oct 5 20256pm Sun, Oct 5 20257pm Sun, Oct 5 20258pm Sun, Oct 5 20259pm Sun, Oct 5 202510pm Sun, Oct 5 202511pm Sun, Oct 5 202512am Mon, Oct 6 20251am Mon, Oct 6 20252am Mon, Oct 6 20253am Mon, Oct 6 20254am Mon, Oct 6 20255am Mon, Oct 6 20256am Mon, Oct 6 20257am Mon, Oct 6 20258am Mon, Oct 6 20259am Mon, Oct 6 202510am Mon, Oct 6 202511am Mon, Oct 6 202512pm Mon, Oct 6 20251pm Mon, Oct 6 20252pm Mon, Oct 6 20253pm Mon, Oct 6 20254pm Mon, Oct 6 20255pm Mon, Oct 6 20256pm Mon, Oct 6 20257pm Mon, Oct 6 20258pm Mon, Oct 6 20259pm Mon, Oct 6 202510pm Mon, Oct 6 202511pm Mon, Oct 6 202512am Tue, Oct 7 20251am Tue, Oct 7 20252am Tue, Oct 7 20253am Tue, Oct 7 20254am Tue, Oct 7 20255am Tue, Oct 7 20256am Tue, Oct 7 20257am Tue, Oct 7 20258am Tue, Oct 7 20259am Tue, Oct 7 202510am Tue, Oct 7 202511am Tue, Oct 7 202512pm Tue, Oct 7 20251pm Tue, Oct 7 20252pm Tue, Oct 7 20253pm Tue, Oct 7 20254pm Tue, Oct 7 20255pm Tue, Oct 7 20256pm Tue, Oct 7 20257pm Tue, Oct 7 20258pm Tue, Oct 7 20259pm Tue, Oct 7 202510pm Tue, Oct 7 202511pm Tue, Oct 7 202512am Wed, Oct 8 20251am Wed, Oct 8 20252am Wed, Oct 8 20253am Wed, Oct 8 20254am Wed, Oct 8 20255am Wed, Oct 8 20256am Wed, Oct 8 20257am Wed, Oct 8 20258am Wed, Oct 8 20259am Wed, Oct 8 2025

Date	10/03		10/04
Hour (EDT)	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21
Temperature (°F)	59	57	55	53	53	52	51	50	49	48	50	55	63	69	73	77	79	80	81	79	78	75	68	64
Dewpoint (°F)	52	51	50	50	49	49	48	48	48	48	48	50	51	53	53	53	53	52	52	51	52	53	53	54
Wind Chill (°F)								50	49	48	50
Surface Wind (mph)	2	2	2	2	2	2	2	2	1	1	1	1	1	1	2	2	2	2	2	2	2	2	2	2
Wind Dir	S	S	S	S	S	S	S	S	S	S	S	S	SW	SW	SW	SW	SW	SW	SW	S	S	S	S	S
Gust
Sky Cover (%)	0	0	0	0	0	0	0	0	2	3	5	4	3	2	6	9	13	8	7	3	7	6	6	2
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 (%)	78	80	83	89	86	89	89	93	96	100	93	83	65	57	49	43	41	38	37	38	40	46	59	70
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date			10/05
Hour (EDT)	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21
Temperature (°F)	62	60	58	56	55	54	53	52	50	50	51	57	63	70	74	78	79	81	81	79	76	72	68	65
Dewpoint (°F)	54	55	55	54	53	52	51	51	50	50	51	54	56	57	57	56	55	54	54	54	55	55	56	56
Wind Chill (°F)									50	50
Surface Wind (mph)	2	2	2	1	1	1	1	1	1	0	0	0	1	2	3	5	6	6	6	6	5	5	3	3
Wind Dir	S	S	S	S	S	S	S	SE	SE	SE	N	S	S	S	S	S	S	S	S	S	S	S	S	S
Gust
Sky Cover (%)	3	4	5	6	7	6	6	5	6	6	7	6	5	4	4	5	5	4	4	3	3	3	3	3
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 (%)	75	84	90	93	93	93	93	96	100	100	100	90	78	63	55	47	44	39	39	42	48	55	65	73
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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