Point Forecast: East Alton IL  38.88N 90.11W (Elev. 133 m)	Last Update: 6:07 pm CDT May 16, 2025

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Weather Elements Fire Weather Probabilistic Forecasts (Experimental) Description | Survey Temperature (°C) Dewpoint (°C) Heat Index (°C) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog Mixing Height  x100ftx100m Trans. Wind  ktmphkm/hm/s Vent Rate (x1000 mph-m) 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: 6pm Fri, May 16 20257pm Fri, May 16 20258pm Fri, May 16 20259pm Fri, May 16 202510pm Fri, May 16 202511pm Fri, May 16 202512am Sat, May 17 20251am Sat, May 17 20252am Sat, May 17 20253am Sat, May 17 20254am Sat, May 17 20255am Sat, May 17 20256am Sat, May 17 20257am Sat, May 17 20258am Sat, May 17 20259am Sat, May 17 202510am Sat, May 17 202511am Sat, May 17 202512pm Sat, May 17 20251pm Sat, May 17 20252pm Sat, May 17 20253pm Sat, May 17 20254pm Sat, May 17 20255pm Sat, May 17 20256pm Sat, May 17 20257pm Sat, May 17 20258pm Sat, May 17 20259pm Sat, May 17 202510pm Sat, May 17 202511pm Sat, May 17 202512am Sun, May 18 20251am Sun, May 18 20252am Sun, May 18 20253am Sun, May 18 20254am Sun, May 18 20255am Sun, May 18 20256am Sun, May 18 20257am Sun, May 18 20258am Sun, May 18 20259am Sun, May 18 202510am Sun, May 18 202511am Sun, May 18 202512pm Sun, May 18 20251pm Sun, May 18 20252pm Sun, May 18 20253pm Sun, May 18 20254pm Sun, May 18 20255pm Sun, May 18 20256pm Sun, May 18 20257pm Sun, May 18 20258pm Sun, May 18 20259pm Sun, May 18 202510pm Sun, May 18 202511pm Sun, May 18 202512am Mon, May 19 20251am Mon, May 19 20252am Mon, May 19 20253am Mon, May 19 20254am Mon, May 19 20255am Mon, May 19 20256am Mon, May 19 20257am Mon, May 19 20258am Mon, May 19 20259am Mon, May 19 202510am Mon, May 19 202511am Mon, May 19 202512pm Mon, May 19 20251pm Mon, May 19 20252pm Mon, May 19 20253pm Mon, May 19 20254pm Mon, May 19 20255pm Mon, May 19 20256pm Mon, May 19 20257pm Mon, May 19 20258pm Mon, May 19 20259pm Mon, May 19 202510pm Mon, May 19 202511pm Mon, May 19 202512am Tue, May 20 20251am Tue, May 20 20252am Tue, May 20 20253am Tue, May 20 20254am Tue, May 20 20255am Tue, May 20 20256am Tue, May 20 20257am Tue, May 20 20258am Tue, May 20 20259am Tue, May 20 202510am Tue, May 20 202511am Tue, May 20 202512pm Tue, May 20 20251pm Tue, May 20 20252pm Tue, May 20 20253pm Tue, May 20 20254pm Tue, May 20 20255pm Tue, May 20 20256pm Tue, May 20 20257pm Tue, May 20 20258pm Tue, May 20 20259pm Tue, May 20 202510pm Tue, May 20 202511pm Tue, May 20 202512am Wed, May 21 20251am Wed, May 21 20252am Wed, May 21 20253am Wed, May 21 20254am Wed, May 21 20255am Wed, May 21 2025

Date	05/16						05/17
Hour (CDT)	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17
Temperature (°C)	27	25	23	22	21	20	19	18	16	16	15	14	14	14	15	16	17	18	20	21	22	23	23	24
Dewpoint (°C)	17	15	14	13	12	11	9	8	8	8	8	8	7	7	7	8	8	8	9	9	10	10	11	11
Heat Index (°C)	27	25																						24
Surface Wind (mph)	10	15	14	13	11	10	9	9	9	10	11	11	11	11	13	14	15	16	16	16	16	16	15	13
Wind Dir	W	W	W	W	SW	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W
Gust
Sky Cover (%)	0	0	2	5	7	7	7	6	5	4	3	4	4	5	5	6	6	10	13	17	17	17	18	17
Precipitation Potential (%)	2	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 (%)	54	54	55	57	57	55	54	54	60	62	62	64	64	64	60	58	54	52	49	47	46	44	44	43
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date							05/18
Hour (CDT)	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17
Temperature (°C)	23	23	21	19	18	17	16	15	14	14	14	13	13	14	15	17	18	20	22	23	24	24	25	25
Dewpoint (°C)	11	11	11	11	11	11	11	11	11	10	10	9	9	9	9	9	10	11	11	11	11	12	12	12
Heat Index (°C)																					24	24	25	25
Surface Wind (mph)	10	8	7	6	5	3	3	3	3	5	5	5	3	2	2	3	3	3	3	3	5	5	6	6
Wind Dir	W	W	W	NW	NW	NW	NW	NW	N	N	N	N	N	NE	NE	NE	NE	E	E	E	E	E	E	E
Gust
Sky Cover (%)	17	17	17	17	16	18	20	22	34	46	58	60	61	63	56	49	42	38	35	31	30	30	29	34
Precipitation Potential (%)	0	0	0	0	0	1	1	2	4	5	7	9	11	14	14	14	14	14	14	16	16	16	16	16
Relative Humidity (%)	46	48	55	61	65	70	72	75	77	77	77	77	77	72	69	62	58	55	49	48	45	45	43	45
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	--	--

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