Point Forecast: Cahokia / St. Louis, St. Louis Downtown Airport IL  38.57N 90.15W (Elev. 407 ft)	Last Update: 11:07 am CDT Jun 24, 2024

[hide menu]

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 Haines Index Lightning Activity Level Trans. 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: 1pm Mon, Jun 24 20242pm Mon, Jun 24 20243pm Mon, Jun 24 20244pm Mon, Jun 24 20245pm Mon, Jun 24 20246pm Mon, Jun 24 20247pm Mon, Jun 24 20248pm Mon, Jun 24 20249pm Mon, Jun 24 202410pm Mon, Jun 24 202411pm Mon, Jun 24 202412am Tue, Jun 25 20241am Tue, Jun 25 20242am Tue, Jun 25 20243am Tue, Jun 25 20244am Tue, Jun 25 20245am Tue, Jun 25 20246am Tue, Jun 25 20247am Tue, Jun 25 20248am Tue, Jun 25 20249am Tue, Jun 25 202410am Tue, Jun 25 202411am Tue, Jun 25 202412pm Tue, Jun 25 20241pm Tue, Jun 25 20242pm Tue, Jun 25 20243pm Tue, Jun 25 20244pm Tue, Jun 25 20245pm Tue, Jun 25 20246pm Tue, Jun 25 20247pm Tue, Jun 25 20248pm Tue, Jun 25 20249pm Tue, Jun 25 202410pm Tue, Jun 25 202411pm Tue, Jun 25 202412am Wed, Jun 26 20241am Wed, Jun 26 20242am Wed, Jun 26 20243am Wed, Jun 26 20244am Wed, Jun 26 20245am Wed, Jun 26 20246am Wed, Jun 26 20247am Wed, Jun 26 20248am Wed, Jun 26 20249am Wed, Jun 26 202410am Wed, Jun 26 202411am Wed, Jun 26 202412pm Wed, Jun 26 20241pm Wed, Jun 26 20242pm Wed, Jun 26 20243pm Wed, Jun 26 20244pm Wed, Jun 26 20245pm Wed, Jun 26 20246pm Wed, Jun 26 20247pm Wed, Jun 26 20248pm Wed, Jun 26 20249pm Wed, Jun 26 202410pm Wed, Jun 26 202411pm Wed, Jun 26 202412am Thu, Jun 27 20241am Thu, Jun 27 20242am Thu, Jun 27 20243am Thu, Jun 27 20244am Thu, Jun 27 20245am Thu, Jun 27 20246am Thu, Jun 27 20247am Thu, Jun 27 20248am Thu, Jun 27 20249am Thu, Jun 27 202410am Thu, Jun 27 202411am Thu, Jun 27 202412pm Thu, Jun 27 20241pm Thu, Jun 27 20242pm Thu, Jun 27 20243pm Thu, Jun 27 20244pm Thu, Jun 27 20245pm Thu, Jun 27 20246pm Thu, Jun 27 20247pm Thu, Jun 27 20248pm Thu, Jun 27 20249pm Thu, Jun 27 202410pm Thu, Jun 27 202411pm Thu, Jun 27 202412am Fri, Jun 28 20241am Fri, Jun 28 20242am Fri, Jun 28 20243am Fri, Jun 28 20244am Fri, Jun 28 20245am Fri, Jun 28 20246am Fri, Jun 28 20247am Fri, Jun 28 20248am Fri, Jun 28 20249am Fri, Jun 28 202410am Fri, Jun 28 202411am Fri, Jun 28 202412pm Fri, Jun 28 20241pm Fri, Jun 28 20242pm Fri, Jun 28 20243pm Fri, Jun 28 20244pm Fri, Jun 28 20245pm Fri, Jun 28 20246pm Fri, Jun 28 20247pm Fri, Jun 28 20248pm Fri, Jun 28 20249pm Fri, Jun 28 202410pm Fri, Jun 28 202411pm Fri, Jun 28 202412am Sat, Jun 29 2024

Date	06/24											06/25
Hour (CDT)	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12
Temperature (°F)	92	93	94	95	95	94	93	90	86	83	82	80	79	79	78	78	77	78	79	82	88	91	94	96
Dewpoint (°F)	65	65	65	66	66	65	66	67	67	68	69	68	68	68	68	67	68	68	69	69	70	71	71	70
Heat Index (°F)	94	95	97	98	98	97	96	93	89	86	85	83	79	79	78	78	77	78	79	85	93	98	101	103
Surface Wind (mph)	10	8	8	8	9	9	9	8	8	8	8	8	7	7	7	7	7	7	7	8	8	9	10	10
Wind Dir	S	S	S	S	S	S	S	SE	S	S	S	S	S	S	S	S	S	S	SW	SW	SW	SW	W	W
Gust
Sky Cover (%)	21	13	14	11	8	7	8	9	5	6	8	16	19	24	36	34	29	24	21	25	26	27	25	29
Precipitation Potential (%)	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	2	3	11
Relative Humidity (%)	41	40	39	39	39	39	41	47	53	61	65	67	69	69	71	69	74	71	72	65	55	52	47	43
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date												06/26
Hour (CDT)	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12
Temperature (°F)	97	97	98	99	98	95	93	90	86	82	80	79	79	78	77	76	75	75	75	77	79	81	83	84
Dewpoint (°F)	70	71	70	70	70	70	69	69	70	72	72	72	72	72	71	71	71	72	72	72	71	70	70	69
Heat Index (°F)	104	105	105	107	105	102	98	95	91	87	84	79	79	78	77	76	75	75	75	77	79	85	87	88
Surface Wind (mph)	10	10	10	10	10	9	8	6	6	6	6	5	5	5	5	5	5	5	5	5	6	6	7	7
Wind Dir	W	W	W	SW	SW	SW	S	S	S	S	SW	SW	SW	SW	SW	SW	W	W	SW	W	W	NW	NW	NW
Gust
Sky Cover (%)	34	41	43	44	50	45	44	43	44	48	53	60	66	69	69	69	69	70	65	64	62	61	55	48
Precipitation Potential (%)	18	18	18	18	18	18	23	20	17	20	22	26	29	35	41	57	72	65	45	45	45	45	45	45
Relative Humidity (%)	42	43	41	39	41	45	46	50	59	72	77	79	79	82	82	85	87	90	90	85	77	69	65	61
Rain	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	Chc	Chc	Chc	Chc	Lkly	Lkly	Lkly	Chc	Chc	Chc	Chc	Chc	Chc
Thunder	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	Chc	Chc	Chc	Chc	Lkly	Lkly	Lkly	Chc	Chc	Chc	Chc	Chc	Chc

International System of Units Forecast Discussion 7-Day Forecast Hourly Weather Graph City Digital Fcst County Digital Fcst Hazardous Weather River Stages STL Climate Summary COU Climate Summary UIN Climate Summary Local Climatology Weather Roundup