Point Forecast: Lafayette, Purdue University Airport IN  40.42N 86.91W (Elev. 604 ft)	Last Update: 7:45 pm EDT Sep 29, 2025

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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 Trans. Wind  ktmphkm/hm/s 20ft Wind  ktmphkm/hm/s Vent Rate (x1000 mph-ft) Ceiling Height Visibility Thunder Potential

48-Hour Period Starting: 8pm Mon, Sep 29 20259pm Mon, Sep 29 202510pm Mon, Sep 29 202511pm Mon, Sep 29 202512am Tue, Sep 30 20251am Tue, Sep 30 20252am Tue, Sep 30 20253am Tue, Sep 30 20254am Tue, Sep 30 20255am Tue, Sep 30 20256am Tue, Sep 30 20257am Tue, Sep 30 20258am Tue, Sep 30 20259am Tue, Sep 30 202510am Tue, Sep 30 202511am Tue, Sep 30 202512pm Tue, Sep 30 20251pm Tue, Sep 30 20252pm Tue, Sep 30 20253pm Tue, Sep 30 20254pm Tue, Sep 30 20255pm Tue, Sep 30 20256pm Tue, Sep 30 20257pm Tue, Sep 30 20258pm Tue, Sep 30 20259pm Tue, Sep 30 202510pm Tue, Sep 30 202511pm Tue, Sep 30 202512am Wed, Oct 1 20251am Wed, Oct 1 20252am Wed, Oct 1 20253am Wed, Oct 1 20254am Wed, Oct 1 20255am Wed, Oct 1 20256am Wed, Oct 1 20257am Wed, Oct 1 20258am Wed, Oct 1 20259am Wed, Oct 1 202510am Wed, Oct 1 202511am Wed, Oct 1 202512pm Wed, Oct 1 20251pm Wed, Oct 1 20252pm Wed, Oct 1 20253pm Wed, Oct 1 20254pm Wed, Oct 1 20255pm Wed, Oct 1 20256pm Wed, Oct 1 20257pm Wed, Oct 1 20258pm Wed, Oct 1 20259pm Wed, Oct 1 202510pm Wed, Oct 1 202511pm Wed, Oct 1 202512am Thu, Oct 2 20251am Thu, Oct 2 20252am Thu, Oct 2 20253am Thu, Oct 2 20254am Thu, Oct 2 20255am Thu, Oct 2 20256am Thu, Oct 2 20257am Thu, Oct 2 20258am Thu, Oct 2 20259am Thu, Oct 2 202510am Thu, Oct 2 202511am Thu, Oct 2 202512pm Thu, Oct 2 20251pm Thu, Oct 2 20252pm Thu, Oct 2 20253pm Thu, Oct 2 20254pm Thu, Oct 2 20255pm Thu, Oct 2 20256pm Thu, Oct 2 20257pm Thu, Oct 2 20258pm Thu, Oct 2 20259pm Thu, Oct 2 202510pm Thu, Oct 2 202511pm Thu, Oct 2 202512am Fri, Oct 3 20251am Fri, Oct 3 20252am Fri, Oct 3 20253am Fri, Oct 3 20254am Fri, Oct 3 20255am Fri, Oct 3 20256am Fri, Oct 3 20257am Fri, Oct 3 20258am Fri, Oct 3 20259am Fri, Oct 3 202510am Fri, Oct 3 202511am Fri, Oct 3 202512pm Fri, Oct 3 20251pm Fri, Oct 3 20252pm Fri, Oct 3 20253pm Fri, Oct 3 20254pm Fri, Oct 3 20255pm Fri, Oct 3 20256pm Fri, Oct 3 20257pm Fri, Oct 3 20258pm Fri, Oct 3 20259pm Fri, Oct 3 202510pm 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 2025

Date	09/29				09/30
Hour (EDT)	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19
Temperature (°F)	80	77	74	72	68	67	65	65	63	61	60	59	58	61	67	73	77	81	83	84	85	85	84	82
Dewpoint (°F)	57	57	58	58	58	58	58	58	57	57	56	55	56	57	56	56	56	54	53	52	51	50	48	50
Heat Index (°F)	80	77															77	81	82	82	83	83	82	81
Surface Wind (mph)	2	2	2	1	2	2	1	2	1	2	1	2	2	2	3	6	7	8	8	9	9	9	8	5
Wind Dir	NE	NE	NE	NE	NE	NE	NE	NE	NE	NNE	NNE	NNE	NNE	NE	NE	NE	NE	ENE	NE	NE	NE	NE	NE	NE
Gust
Sky Cover (%)	10	13	0	0	0	0	0	0	0	0	7	8	5	3	2	3	5	3	5	4	3	2	3	5
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 (%)	45	50	57	61	70	73	78	78	81	87	87	87	93	87	68	55	48	39	36	33	31	30	29	33
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date					10/01
Hour (EDT)	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19
Temperature (°F)	78	72	69	66	65	63	61	60	59	58	57	56	55	60	64	68	72	76	79	80	80	81	79	77
Dewpoint (°F)	52	52	51	51	51	50	50	50	51	51	51	51	52	53	55	57	57	56	54	53	52	51	50	50
Heat Index (°F)	78																	76	79	80	80	80	79	77
Surface Wind (mph)	2	3	5	5	3	3	3	2	2	2	3	5	5	5	6	6	6	7	7	7	7	7	7	6
Wind Dir	NE	NE	NE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	E	E	E	E	E	E	E	E	E	ENE
Gust
Sky Cover (%)	6	10	15	19	23	27	31	35	38	42	45	48	60	60	59	59	58	58	57	53	50	46	49	51
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	49	53	58	60	62	67	69	75	77	80	83	90	78	73	68	59	50	42	39	38	35	36	39
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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