Herculaneum, MO Current Weather Conditions

Current weather observations and 72-hour history for Herculaneum, MO. • View 5-Day Forecast ›

▼Current Conditions — Herculaneum, MO

ST LOUIS/SPIRIT (KSUS)

Fog/Mist

30.2 F

Humidity:	100%
Wind Speed:	0.0 mph
Barometer:	30.23 in
Dewpoint:	30.2 F
Visibility:	4.00 mi
Precip:	--
Heat Index:	NA
Wind Chill:	NA

Nov 7 2026, 04:50 AM CST

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▼Hourly Observation History — Herculaneum, MO

Time	Wind (mph)	Vis (mi)	Weather	Precip (in)	Temperature (F)		Relative Humidity	Wind Chill (F)	Heat Index (F)	Pressure
Time	Wind (mph)	Vis (mi)	Weather	Precip (in)	Air	Dwpt	Relative Humidity	Wind Chill (F)	Heat Index (F)	altimeter (in)	sea level (mb)
04:50 AM CST	0.0	4.00	Fog/Mist	--	30.2	30.2	100%	NA	NA	30.23	1023.7
04:40 AM CST	0.0	2.50	Fog/Mist	--	30.2	30.2	100%	NA	NA	30.23	1023.7
04:30 AM CST	0.0	2.50	Fog/Mist	--	30.2	30.2	100%	NA	NA	30.22	1023.4
04:20 AM CST	0.0	0.50	Fog	--	32.0	32.0	100%	NA	NA	30.22	1023.4
03:50 AM CST	0.0	0.25	Freezing Fog	--	30.2	30.2	100%	NA	NA	30.22	1023.4
03:30 AM CST	0.0	0.24	Fog	--	32.0	32.0	100%	NA	NA	30.22	1023.4
02:54 AM CST	0.0	9.00	NULL	--	32.0	30.9	96%	NA	NA	30.23	1023.7
02:35 AM CST	0.0	10.00	Clear	--	32.0	30.2	93%	NA	NA	30.23	1023.7
02:25 AM CST	0.0	10.00	Clear	--	32.0	32.0	100%	NA	NA	30.23	1023.7
02:05 AM CST	0.0	10.00	Clear	--	32.0	32.0	100%	NA	NA	30.22	1023.4
01:50 AM CST	0.0	10.00	Clear	--	33.8	32.0	93%	NA	NA	30.22	1023.4
01:40 AM CST	0.0	10.00	Clear	--	33.8	32.0	93%	NA	NA	30.22	1023.4
01:20 AM CST	0.0	10.00	Clear	--	33.8	32.0	93%	NA	NA	30.22	1023.4
01:15 AM CST	0.0	10.00	Clear	--	33.8	33.8	100%	NA	NA	30.22	1023.4
01:10 AM CST	0.0	10.00	Clear	--	33.8	32.0	93%	NA	NA	30.22	1023.4
01:05 AM CST	3.4	10.00	Clear	--	33.8	33.8	100%	30.7	NA	30.22	1023.4
01:00 AM CST	3.4	10.00	Clear	--	35.6	33.8	93%	32.9	NA	30.22	1023.4
12:30 AM CST	W 5.7	10.00	Clear	--	33.8	32.0	93%	28.6	NA	30.22	1023.4
12:10 AM CST	4.6	10.00	Clear	--	33.8	33.8	100%	29.5	NA	30.22	1023.4
11:55 PM CST	W 4.6	10.00	Clear	--	33.8	33.8	100%	29.5	NA	30.22	1023.4
11:00 PM CST	3.4	10.00	Clear	--	37.4	33.8	87%	34.9	NA	30.23	1023.7
09:55 PM CST	0.0	10.00	Clear	--	44.6	33.8	66%	NA	NA	30.25	1024.4
09:50 PM CST	0.0	10.00	Mostly Clear	--	44.6	33.8	66%	NA	NA	30.25	1024.4
08:55 PM CST	5.7	10.00	Cloudy	--	46.4	33.8	61%	43.5	NA	30.26	1024.7
07:54 PM CST	6.9	10.00	Cloudy	--	46.9	35.1	63%	43.5	NA	30.25	1024.4
07:05 PM CST	6.9	10.00	Cloudy	--	48.2	35.6	62%	45.1	NA	30.24	1024.0
06:55 PM CST	9.2	10.00	Cloudy	--	48.2	35.6	62%	44.1	NA	30.24	1024.0
06:45 PM CST	8.1	10.00	Cloudy	--	48.2	35.6	62%	44.6	NA	30.23	1023.7
06:15 PM CST	8.1	10.00	Cloudy	--	48.2	37.4	66%	44.6	NA	30.23	1023.7
05:45 PM CST	6.9	10.00	Cloudy	--	48.2	37.4	66%	45.1	NA	30.22	1023.4
05:20 PM CST	5.7	10.00	Cloudy	--	48.2	37.4	66%	45.7	NA	30.20	1022.7
05:05 PM CST	8.1	10.00	Cloudy	--	48.2	39.2	71%	44.6	NA	30.20	1022.7
04:54 PM CST		10.00	Cloudy	--	NULL		%	NA	NA		M
04:40 PM CST	5.7	10.00	Cloudy	--	51.8	41.0	67%	NA	NA	30.19	1022.4
04:05 PM CST	5.7	10.00	Cloudy	--	51.8	41.0	67%	NA	NA	30.18	1022.0
03:20 PM CST	10.4	10.00	Cloudy	--	51.8	41.0	67%	NA	NA	30.18	1022.0
02:55 PM CST	4.6	10.00	Cloudy	--	51.8	44.6	76%	NA	NA	30.17	1021.7
02:45 PM CST	6.9	10.00	Cloudy	--	51.8	44.6	76%	NA	NA	30.17	1021.7
02:30 PM CST	8.1	10.00	Cloudy	--	51.8	44.6	76%	NA	NA	30.17	1021.7
01:40 PM CST	11.5	10.00	Light Rain	--	50.0	44.6	82%	NA	NA	30.17	1021.7
01:25 PM CST	6.9	10.00	Light Rain	--	51.8	44.6	76%	NA	NA	30.17	1021.7
12:55 PM CST	6.9	10.00	Light Rain	--	51.8	44.6	76%	NA	NA	30.18	1022.0
12:50 PM CST	6.9	10.00	Light Rain	--	51.8	44.6	76%	NA	NA	30.18	1022.0
12:45 PM CST	8.1	10.00	Light Rain	--	51.8	44.6	76%	NA	NA	30.18	1022.0
12:40 PM CST	9.2	10.00	Light Rain	--	50.0	44.6	82%	NA	NA	30.18	1022.0
12:10 PM CST	9.2	10.00	Cloudy	--	51.8	44.6	76%	NA	NA	30.18	1022.0
12:00 PM CST	9.2	10.00	Cloudy	--	51.8	44.6	76%	NA	NA	30.18	1022.0
11:35 AM CST	4.6	6.00	Haze	--	51.8	44.6	76%	NA	NA	30.19	1022.4
10:35 AM CST	9.2	4.00	Light Rain and Fog/Mist	--	50.0	46.4	87%	NA	NA	30.20	1022.7
10:30 AM CST	6.9	4.00	Light Rain and Fog/Mist	--	48.2	46.4	93%	45.1	NA	30.20	1022.7
10:20 AM CST	6.9	4.00	Light Rain and Fog/Mist	--	50.0	46.4	87%	NA	NA	30.19	1022.4
10:15 AM CST	8.1	4.00	Light Rain and Fog/Mist	--	48.2	46.4	93%	44.6	NA	30.19	1022.4
10:10 AM CST	9.2	5.00	Light Rain and Fog/Mist	--	48.2	46.4	93%	44.1	NA	30.19	1022.4
09:55 AM CST	10.4	10.00	Cloudy	--	50.0	44.6	82%	NA	NA	30.19	1022.4
09:40 AM CST	6.9	6.00	Fog/Mist	--	50.0	44.6	82%	NA	NA	30.18	1022.0
09:20 AM CST	6.9	6.00	Fog/Mist	--	51.8	44.6	76%	NA	NA	30.18	1022.0
08:35 AM CST	9.2	10.00	Cloudy	--	51.8	42.8	71%	NA	NA	30.17	1021.7
08:10 AM CST	9.2	10.00	Cloudy	--	50.0	44.6	82%	NA	NA	30.16	1021.3
07:54 AM CST	6.9	6.00	Fog/Mist	Trace	50.0	46.9	89%	NA	NA	30.16	1021.3
07:45 AM CST	6.9	6.00	Light Rain and Fog/Mist	--	50.0	46.4	87%	NA	NA	30.16	1021.3
07:10 AM CST	NW 6.9	10.00	Cloudy	--	50.0	46.4	87%	NA	NA	30.15	1021.0
06:55 AM CST	NW 9.2	10.00	Cloudy	--	50.0	46.4	87%	NA	NA	30.14	1020.7
06:45 AM CST	NW 8.1	10.00	Cloudy	--	50.0	46.4	87%	NA	NA	30.14	1020.7
06:35 AM CST	NW 6.9	10.00	Cloudy	--	50.0	46.4	87%	NA	NA	30.13	1020.3
06:25 AM CST	NW 5.7	10.00	Mostly Cloudy	--	50.0	46.4	87%	NA	NA	30.13	1020.3
06:20 AM CST	NW 5.7	10.00	Mostly Cloudy	--	50.0	46.4	87%	NA	NA	30.12	1020.0
06:05 AM CST	NW 9.2	10.00	Mostly Cloudy	--	50.0	46.4	87%	NA	NA	30.11	1019.6
05:55 AM CST	NW 9.2	10.00	Mostly Cloudy	--	48.2	44.6	87%	44.1	NA	30.11	1019.6
05:50 AM CST	8.1	10.00	Mostly Cloudy	--	50.0	44.6	82%	NA	NA	30.11	1019.6
05:40 AM CST	10.4	10.00	Cloudy	--	51.8	44.6	76%	NA	NA	30.11	1019.6
05:13 AM CST	NW 5.8	10.00	Cloudy	--	51.1	46.0	83%	NA	NA	30.10	1019.3
05:10 AM CST	6.9	10.00	Cloudy	--	51.8	46.4	82%	NA	NA	30.10	1019.3