Point Forecast: Chatham IL  39.67N 89.7W (Elev. 600 ft)	Last Update: 12:26 pm CDT Jul 11, 2025

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Weather Elements Fire Weather Probabilistic Forecasts (Experimental) Description | Survey 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) Quantitative Precipitation  3-hr6-hr12-hr24-hr   info     0.100.250.501.00 Snowfall  3-hr6-hr12-hr24-hr   info     0.1in1in3in6in12in

48-Hour Period Starting: 2pm Fri, Jul 11 20253pm Fri, Jul 11 20254pm Fri, Jul 11 20255pm Fri, Jul 11 20256pm Fri, Jul 11 20257pm Fri, Jul 11 20258pm Fri, Jul 11 20259pm Fri, Jul 11 202510pm Fri, Jul 11 202511pm Fri, Jul 11 202512am Sat, Jul 12 20251am Sat, Jul 12 20252am Sat, Jul 12 20253am Sat, Jul 12 20254am Sat, Jul 12 20255am Sat, Jul 12 20256am Sat, Jul 12 20257am Sat, Jul 12 20258am Sat, Jul 12 20259am Sat, Jul 12 202510am Sat, Jul 12 202511am Sat, Jul 12 202512pm Sat, Jul 12 20251pm Sat, Jul 12 20252pm Sat, Jul 12 20253pm Sat, Jul 12 20254pm Sat, Jul 12 20255pm Sat, Jul 12 20256pm Sat, Jul 12 20257pm Sat, Jul 12 20258pm Sat, Jul 12 20259pm Sat, Jul 12 202510pm Sat, Jul 12 202511pm Sat, Jul 12 202512am Sun, Jul 13 20251am Sun, Jul 13 20252am Sun, Jul 13 20253am Sun, Jul 13 20254am Sun, Jul 13 20255am Sun, Jul 13 20256am Sun, Jul 13 20257am Sun, Jul 13 20258am Sun, Jul 13 20259am Sun, Jul 13 202510am Sun, Jul 13 202511am Sun, Jul 13 202512pm Sun, Jul 13 20251pm Sun, Jul 13 20252pm Sun, Jul 13 20253pm Sun, Jul 13 20254pm Sun, Jul 13 20255pm Sun, Jul 13 20256pm Sun, Jul 13 20257pm Sun, Jul 13 20258pm Sun, Jul 13 20259pm Sun, Jul 13 202510pm Sun, Jul 13 202511pm Sun, Jul 13 202512am Mon, Jul 14 20251am Mon, Jul 14 20252am Mon, Jul 14 20253am Mon, Jul 14 20254am Mon, Jul 14 20255am Mon, Jul 14 20256am Mon, Jul 14 20257am Mon, Jul 14 20258am Mon, Jul 14 20259am Mon, Jul 14 202510am Mon, Jul 14 202511am Mon, Jul 14 202512pm Mon, Jul 14 20251pm Mon, Jul 14 20252pm Mon, Jul 14 20253pm Mon, Jul 14 20254pm Mon, Jul 14 20255pm Mon, Jul 14 20256pm Mon, Jul 14 20257pm Mon, Jul 14 20258pm Mon, Jul 14 20259pm Mon, Jul 14 202510pm Mon, Jul 14 202511pm Mon, Jul 14 202512am Tue, Jul 15 20251am Tue, Jul 15 20252am Tue, Jul 15 20253am Tue, Jul 15 20254am Tue, Jul 15 20255am Tue, Jul 15 20256am Tue, Jul 15 20257am Tue, Jul 15 20258am Tue, Jul 15 20259am Tue, Jul 15 202510am Tue, Jul 15 202511am Tue, Jul 15 202512pm Tue, Jul 15 20251pm Tue, Jul 15 20252pm Tue, Jul 15 20253pm Tue, Jul 15 20254pm Tue, Jul 15 20255pm Tue, Jul 15 20256pm Tue, Jul 15 20257pm Tue, Jul 15 20258pm Tue, Jul 15 20259pm Tue, Jul 15 202510pm Tue, Jul 15 202511pm Tue, Jul 15 202512am Wed, Jul 16 20251am Wed, Jul 16 2025

Date	07/11										07/12
Hour (CDT)	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13
Temperature (°F)	90	91	92	90	90	88	84	82	79	77	76	76	75	73	73	73	71	73	74	76	80	81	82	83
Dewpoint (°F)	72	71	71	71	72	72	72	71	71	70	70	71	71	70	70	70	70	70	71	72	72	72	72	73
Heat Index (°F)	97	98	99	96	97	95	90	86	79	77	76	76	75							76	84	85	87	89
Surface Wind (mph)	13	13	13	11	11	10	10	10	10	9	9	8	8	8	8	7	7	7	9	10	10	10	11	11
Wind Dir	SSW	S	S	S	S	S	SSW	SW	SW	SW	SSW	SSW	SSW	SSW	SSW	SSW	SW	SW	SW	WSW	WSW	WSW	WSW	WSW
Gust	18	18	18	18	18	18	18	17	17	16	15			15	15	15	15	15	15	15	16	17	18	18
Sky Cover (%)	24	19	15	18	22	25	26	27	28	38	48	58	57	57	57	52	47	43	34	54	39	54	55	55
Precipitation Potential (%)	5	5	9	12	18	24	24	24	42	42	42	37	37	37	37	37	37	23	23	23	23	23	23	56
Relative Humidity (%)	56	52	51	54	56	59	67	69	77	79	82	85	87	90	90	90	97	90	90	87	77	74	72	72
Rain	--	--	--	--	SChc	SChc	SChc	SChc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	SChc	SChc	SChc	Lkly
Thunder	--	--	--	--	SChc	SChc	SChc	SChc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	SChc	SChc	SChc	Chc
Date											07/13
Hour (CDT)	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13
Temperature (°F)	83	83	83	83	82	81	79	76	74	73	72	72	71	70	69	68	68	69	72	75	78	80	80	81
Dewpoint (°F)	73	72	72	72	72	72	72	71	71	71	70	70	69	68	67	67	67	67	68	68	69	69	69	68
Heat Index (°F)	89	88	88	88	87	85	79	76												75	78	83	83	84
Surface Wind (mph)	11	11	10	9	8	7	6	5	5	5	5	5	5	3	3	3	3	3	3	5	5	5	6	6
Wind Dir	WSW	W	W	W	W	W	W	W	W	W	W	W	WNW	NW	NW	NNW	NNW	NNW	NNW	NW	WNW	WNW	W	W
Gust	18	18	17	16
Sky Cover (%)	55	54	54	53	53	52	51	50	49	53	57	61	59	56	54	56	58	60	57	55	52	53	54	55
Precipitation Potential (%)	56	56	56	56	56	23	23	23	23	23	23	11	11	11	11	11	11	21	21	21	21	21	21	25
Relative Humidity (%)	72	70	70	70	72	74	79	85	90	93	93	93	93	93	93	97	97	93	87	79	74	69	69	65
Rain	Lkly	Lkly	Lkly	Lkly	Lkly	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	Chc
Thunder	Chc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	Chc

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