Point Forecast: Cahokia / St. Louis, St. Louis Downtown Airport IL  38.57N 90.15W (Elev. 124 m)	Last Update: 3:16 pm CST Nov 18, 2025

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Weather Elements Fire Weather Probabilistic Forecasts (Experimental) Description | Survey Temperature (°C) Dewpoint (°C) Wind Chill (°C) 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 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: 3pm Tue, Nov 18 20254pm Tue, Nov 18 20255pm Tue, Nov 18 20256pm Tue, Nov 18 20257pm Tue, Nov 18 20258pm Tue, Nov 18 20259pm Tue, Nov 18 202510pm Tue, Nov 18 202511pm Tue, Nov 18 202512am Wed, Nov 19 20251am Wed, Nov 19 20252am Wed, Nov 19 20253am Wed, Nov 19 20254am Wed, Nov 19 20255am Wed, Nov 19 20256am Wed, Nov 19 20257am Wed, Nov 19 20258am Wed, Nov 19 20259am Wed, Nov 19 202510am Wed, Nov 19 202511am Wed, Nov 19 202512pm Wed, Nov 19 20251pm Wed, Nov 19 20252pm Wed, Nov 19 20253pm Wed, Nov 19 20254pm Wed, Nov 19 20255pm Wed, Nov 19 20256pm Wed, Nov 19 20257pm Wed, Nov 19 20258pm Wed, Nov 19 20259pm Wed, Nov 19 202510pm Wed, Nov 19 202511pm Wed, Nov 19 202512am Thu, Nov 20 20251am Thu, Nov 20 20252am Thu, Nov 20 20253am Thu, Nov 20 20254am Thu, Nov 20 20255am Thu, Nov 20 20256am Thu, Nov 20 20257am Thu, Nov 20 20258am Thu, Nov 20 20259am Thu, Nov 20 202510am Thu, Nov 20 202511am Thu, Nov 20 202512pm Thu, Nov 20 20251pm Thu, Nov 20 20252pm Thu, Nov 20 20253pm Thu, Nov 20 20254pm Thu, Nov 20 20255pm Thu, Nov 20 20256pm Thu, Nov 20 20257pm Thu, Nov 20 20258pm Thu, Nov 20 20259pm Thu, Nov 20 202510pm Thu, Nov 20 202511pm Thu, Nov 20 202512am Fri, Nov 21 20251am Fri, Nov 21 20252am Fri, Nov 21 20253am Fri, Nov 21 20254am Fri, Nov 21 20255am Fri, Nov 21 20256am Fri, Nov 21 20257am Fri, Nov 21 20258am Fri, Nov 21 20259am Fri, Nov 21 202510am Fri, Nov 21 202511am Fri, Nov 21 202512pm Fri, Nov 21 20251pm Fri, Nov 21 20252pm Fri, Nov 21 20253pm Fri, Nov 21 20254pm Fri, Nov 21 20255pm Fri, Nov 21 20256pm Fri, Nov 21 20257pm Fri, Nov 21 20258pm Fri, Nov 21 20259pm Fri, Nov 21 202510pm Fri, Nov 21 202511pm Fri, Nov 21 202512am Sat, Nov 22 20251am Sat, Nov 22 20252am Sat, Nov 22 20253am Sat, Nov 22 20254am Sat, Nov 22 20255am Sat, Nov 22 20256am Sat, Nov 22 20257am Sat, Nov 22 20258am Sat, Nov 22 20259am Sat, Nov 22 202510am Sat, Nov 22 202511am Sat, Nov 22 202512pm Sat, Nov 22 20251pm Sat, Nov 22 20252pm Sat, Nov 22 20253pm Sat, Nov 22 20254pm Sat, Nov 22 20255pm Sat, Nov 22 20256pm Sat, Nov 22 20257pm Sat, Nov 22 20258pm Sat, Nov 22 20259pm Sat, Nov 22 202510pm Sat, Nov 22 202511pm Sat, Nov 22 202512am Sun, Nov 23 20251am Sun, Nov 23 20252am Sun, Nov 23 2025

Date	11/18									11/19
Hour (CST)	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14
Temperature (°C)	19	19	17	18	14	13	12	12	12	12	11	11	11	10	10	10	9	11	12	13	14	14	14	14
Dewpoint (°C)	16	14	14	13	13	12	12	11	10	10	10	9	9	9	8	8	8	9	9	9	9	9	9	9
Wind Chill (°C)														10	10	10	9
Surface Wind (mph)	7	7	6	5	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
Wind Dir	NW	NW	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N
Gust
Sky Cover (%)	56	53	58	67	62	57	62	61	69	82	92	94	94	89	91	95	94	92	92	92	91	91	91	91
Precipitation Potential (%)	15	7	4	1	0	0	0	0	0	0	0	0	0	0	1	2	2	2	2	2	2	3	3	3
Relative Humidity (%)	78	75	84	75	90	93	96	96	89	89	96	93	93	93	89	89	93	89	86	77	72	75	69	69
Rain	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date										11/20
Hour (CST)	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14
Temperature (°C)	14	14	13	13	11	9	9	9	9	8	8	8	8	8	9	9	11	12	13	14	15	16	16	16
Dewpoint (°C)	9	9	9	10	11	9	9	9	9	8	8	8	8	8	8	9	9	11	11	11	12	12	12	12
Wind Chill (°C)						9	9	9	9	8	8	8	8	8	8	9
Surface Wind (mph)	2	2	2	1	1	1	1	1	1	1	1	2	2	2	3	3	5	5	6	7	8	8	8	8
Wind Dir	NW	N	NE	E	E	E	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	S	S	S	S
Gust
Sky Cover (%)	93	82	81	81	71	63	86	63	76	88	90	91	93	93	94	94	93	93	92	92	93	93	93	94
Precipitation Potential (%)	3	3	3	1	1	1	1	1	1	26	26	26	26	26	26	72	72	72	72	72	72	65	65	65
Relative Humidity (%)	69	69	74	83	96	100	100	100	100	100	100	100	100	96	96	96	93	93	90	83	80	75	78	78
Rain	--	--	--	--	--	--	--	--	--	Chc	Chc	Chc	Chc	Chc	Chc	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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