Point Forecast: Chambersburg PA  39.93N 77.66W (Elev. 617 ft)	Last Update: 8:56 pm EST Jan 25, 2026

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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: 9pm Sun, Jan 25 202610pm Sun, Jan 25 202611pm Sun, Jan 25 202612am Mon, Jan 26 20261am Mon, Jan 26 20262am Mon, Jan 26 20263am Mon, Jan 26 20264am Mon, Jan 26 20265am Mon, Jan 26 20266am Mon, Jan 26 20267am Mon, Jan 26 20268am Mon, Jan 26 20269am Mon, Jan 26 202610am Mon, Jan 26 202611am Mon, Jan 26 202612pm Mon, Jan 26 20261pm Mon, Jan 26 20262pm Mon, Jan 26 20263pm Mon, Jan 26 20264pm Mon, Jan 26 20265pm Mon, Jan 26 20266pm Mon, Jan 26 20267pm Mon, Jan 26 20268pm Mon, Jan 26 20269pm Mon, Jan 26 202610pm Mon, Jan 26 202611pm Mon, Jan 26 202612am Tue, Jan 27 20261am Tue, Jan 27 20262am Tue, Jan 27 20263am Tue, Jan 27 20264am Tue, Jan 27 20265am Tue, Jan 27 20266am Tue, Jan 27 20267am Tue, Jan 27 20268am Tue, Jan 27 20269am Tue, Jan 27 202610am Tue, Jan 27 202611am Tue, Jan 27 202612pm Tue, Jan 27 20261pm Tue, Jan 27 20262pm Tue, Jan 27 20263pm Tue, Jan 27 20264pm Tue, Jan 27 20265pm Tue, Jan 27 20266pm Tue, Jan 27 20267pm Tue, Jan 27 20268pm Tue, Jan 27 20269pm Tue, Jan 27 202610pm Tue, Jan 27 202611pm Tue, Jan 27 202612am Wed, Jan 28 20261am Wed, Jan 28 20262am Wed, Jan 28 20263am Wed, Jan 28 20264am Wed, Jan 28 20265am Wed, Jan 28 20266am Wed, Jan 28 20267am Wed, Jan 28 20268am Wed, Jan 28 20269am Wed, Jan 28 202610am Wed, Jan 28 202611am Wed, Jan 28 202612pm Wed, Jan 28 20261pm Wed, Jan 28 20262pm Wed, Jan 28 20263pm Wed, Jan 28 20264pm Wed, Jan 28 20265pm Wed, Jan 28 20266pm Wed, Jan 28 20267pm Wed, Jan 28 20268pm Wed, Jan 28 20269pm Wed, Jan 28 202610pm Wed, Jan 28 202611pm Wed, Jan 28 202612am Thu, Jan 29 20261am Thu, Jan 29 20262am Thu, Jan 29 20263am Thu, Jan 29 20264am Thu, Jan 29 20265am Thu, Jan 29 20266am Thu, Jan 29 20267am Thu, Jan 29 20268am Thu, Jan 29 20269am Thu, Jan 29 202610am Thu, Jan 29 202611am Thu, Jan 29 202612pm Thu, Jan 29 20261pm Thu, Jan 29 20262pm Thu, Jan 29 20263pm Thu, Jan 29 20264pm Thu, Jan 29 20265pm Thu, Jan 29 20266pm Thu, Jan 29 20267pm Thu, Jan 29 20268pm Thu, Jan 29 20269pm Thu, Jan 29 202610pm Thu, Jan 29 202611pm Thu, Jan 29 202612am Fri, Jan 30 20261am Fri, Jan 30 20262am Fri, Jan 30 20263am Fri, Jan 30 20264am Fri, Jan 30 20265am Fri, Jan 30 20266am Fri, Jan 30 20267am Fri, Jan 30 20268am Fri, Jan 30 2026

Date	01/25			01/26
Hour (EST)	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20
Temperature (°F)	14	15	17	18	19	18	17	15	15	15	16	17	21	22	24	25	25	25	26	24	23	21	18	18
Dewpoint (°F)	10	12	13	15	17	16	15	14	13	12	12	12	13	15	16	16	16	15	14	12	11	9	8	7
Wind Chill (°F)	14	15	17	18	19	18	17	15	15	9	7	9	12	12	14	14	14	14	15	14	13	11	9	9
Surface Wind (mph)	2	1	1	1	1	1	1	2	2	3	6	6	7	9	10	11	11	11	11	10	9	8	7	7
Wind Dir	N	N	N	NE	N	N	N	W	SW	SW	W	W	W	W	W	W	W	W	W	W	W	W	W	W
Gust														20	21	23	24	24	24	24	23	21	20	20
Sky Cover (%)	100	100	100	97	88	96	83	71	58	46	33	52	56	59	59	60	60	60	60	60	55	49	35	32
Precipitation Potential (%)	58	43	31	19	7	8	9	10	9	8	8	8	8	8	8	8	4	4	4	4	4	4	1	1
Relative Humidity (%)	84	88	84	88	92	92	92	96	92	88	84	80	71	74	71	68	68	65	60	60	59	59	64	61
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	Lkly	Chc	Chc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	Lkly	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	Chc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date				01/27
Hour (EST)	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20
Temperature (°F)	17	15	14	12	11	9	7	5	3	2	2	4	7	11	14	17	20	22	23	23	22	20	18	17
Dewpoint (°F)	6	6	5	3	2	1	-1	-2	-4	-5	-5	-3	-1	2	4	6	7	8	10	10	9	8	7	7
Wind Chill (°F)	8	6	5	4	3	1	-2	-4	-6	-6	-6	-3	-2	2	4	7	10	13	14	15	15	12	11	10
Surface Wind (mph)	7	6	6	5	5	5	5	5	5	3	3	3	5	6	7	8	8	8	8	7	6	6	5	5
Wind Dir	W	W	W	W	W	W	W	W	W	W	SW	SW	SW	SW	SW	SW	SW	SW	W	W	W	W	W	W
Gust
Sky Cover (%)	31	29	24	20	15	14	14	13	15	18	20	23	26	29	34	39	44	52	60	68	66	63	61	58
Precipitation Potential (%)	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	8	8	8	8	8	8	0	0
Relative Humidity (%)	61	67	67	66	66	69	69	72	72	72	72	72	69	66	64	61	56	54	57	57	57	59	61	64
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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