Affton, MO Current Weather Conditions

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

▼Current Conditions — Affton, MO

ST CHARLES (KSET)

Cloudy

68.0 F

Humidity:	94%
Wind Speed:	5.7 mph
Barometer:	30.02 in
Dewpoint:	66.2 F
Visibility:	10.00 mi
Precip:	--
Heat Index:	NA
Wind Chill:	NA

Sep 21 2026, 09:10 AM CDT

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▼Hourly Observation History — Affton, 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)
09:10 AM CDT	5.7	10.00	Cloudy	--	68.0	66.2	94%	NA	NA	30.02	1016.6
09:05 AM CDT	5.7	10.00	Cloudy	--	68.0	66.2	94%	NA	NA	30.02	1016.6
08:50 AM CDT	6.9	6.00	Fog/Mist	--	68.0	66.2	94%	NA	NA	30.01	1016.3
08:40 AM CDT	8.1	5.00	Fog/Mist	--	66.2	66.2	100%	NA	NA	30.00	1015.9
08:35 AM CDT	5.7	5.00	Fog/Mist	--	66.2	66.2	100%	NA	NA	30.01	1016.3
08:30 AM CDT	5.7	5.00	Fog/Mist	--	66.2	66.2	100%	NA	NA	30.01	1016.3
08:20 AM CDT	6.9	5.00	Fog/Mist	--	66.2	66.2	100%	NA	NA	30.01	1016.3
08:10 AM CDT	8.1	5.00	Fog/Mist	--	66.2	66.2	100%	NA	NA	30.00	1015.9
08:00 AM CDT	5.7	8.00	Cloudy	--	66.2	64.4	94%	NA	NA	30.00	1015.9
07:45 AM CDT	5.7	9.00	Cloudy	--	66.2	66.2	100%	NA	NA	30.00	1015.9
07:40 AM CDT	6.9	9.00	Cloudy	--	66.2	66.2	100%	NA	NA	29.99	1015.6
07:35 AM CDT	6.9	10.00	Cloudy	--	66.2	66.2	100%	NA	NA	29.99	1015.6
07:30 AM CDT	5.7	10.00	Cloudy	--	66.2	66.2	100%	NA	NA	29.99	1015.6
07:25 AM CDT	6.9	10.00	Cloudy	--	66.2	66.2	100%	NA	NA	29.98	1015.2
07:20 AM CDT	6.9	10.00	Cloudy	--	66.2	66.2	100%	NA	NA	29.98	1015.2
07:15 AM CDT	9.2	10.00	Cloudy	--	66.2	66.2	100%	NA	NA	29.98	1015.2
07:10 AM CDT	6.9	10.00	Cloudy	--	66.2	66.2	100%	NA	NA	29.98	1015.2
07:05 AM CDT	6.9	10.00	Cloudy	--	66.2	66.2	100%	NA	NA	29.98	1015.2
06:50 AM CDT	9.2	9.00	Cloudy	--	66.2	66.2	100%	NA	NA	29.97	1014.9
06:45 AM CDT	9.2	9.00	Cloudy	--	66.2	66.2	100%	NA	NA	29.97	1014.9
06:40 AM CDT	10.4	7.00	Cloudy	--	66.2	66.2	100%	NA	NA	29.97	1014.9
06:30 AM CDT	9.2	6.00	Fog/Mist	--	66.2	66.2	100%	NA	NA	29.96	1014.6
06:25 AM CDT	8.1	5.00	Fog/Mist	--	66.2	66.2	100%	NA	NA	29.96	1014.6
06:15 AM CDT	9.2	5.00	Fog/Mist	--	68.0	66.2	94%	NA	NA	29.96	1014.6
06:10 AM CDT	9.2	5.00	Fog/Mist	--	68.0	66.2	94%	NA	NA	29.96	1014.6
06:05 AM CDT	5.7	5.00	Fog/Mist	--	68.0	66.2	94%	NA	NA	29.96	1014.6
05:54 AM CDT	6.9	5.00	Fog/Mist	--	68.0	66.0	93%	NA	NA	29.96	1014.6
05:50 AM CDT	6.9	6.00	Fog/Mist	--	68.0	66.2	94%	NA	NA	29.96	1014.6
05:35 AM CDT	6.9	10.00	Cloudy	--	68.0	66.2	94%	NA	NA	29.96	1014.6
05:25 AM CDT	5.7	10.00	Cloudy	--	68.0	66.2	94%	NA	NA	29.95	1014.2
05:20 AM CDT	8.1	10.00	Cloudy	--	68.0	66.2	94%	NA	NA	29.95	1014.2
05:15 AM CDT	8.1	10.00	Cloudy	--	68.0	66.2	94%	NA	NA	29.95	1014.2
05:10 AM CDT	5.7	10.00	Cloudy	--	68.0	66.2	94%	NA	NA	29.95	1014.2
05:05 AM CDT	8.1	10.00	Cloudy	--	69.8	66.2	88%	NA	NA	29.95	1014.2
05:00 AM CDT	6.9	10.00	Cloudy	--	69.8	66.2	88%	NA	NA	29.95	1014.2
04:50 AM CDT	5.7	10.00	Cloudy	--	69.8	66.2	88%	NA	NA	29.95	1014.2
04:40 AM CDT	4.6	10.00	Cloudy	--	69.8	66.2	88%	NA	NA	29.94	1013.9
04:35 AM CDT	8.1	10.00	Cloudy	--	69.8	66.2	88%	NA	NA	29.94	1013.9
04:30 AM CDT	8.1	10.00	Cloudy	--	69.8	66.2	88%	NA	NA	29.94	1013.9
04:20 AM CDT	5.7	10.00	Cloudy	--	69.8	66.2	88%	NA	NA	29.94	1013.9
04:10 AM CDT	5.7	10.00	Mostly Cloudy	--	69.8	66.2	88%	NA	NA	29.94	1013.9
04:00 AM CDT	6.9	10.00	Mostly Cloudy	--	69.8	66.2	88%	NA	NA	29.93	1013.5
03:50 AM CDT	5.7	10.00	Partly Cloudy	--	69.8	66.2	88%	NA	NA	29.92	1013.2
03:45 AM CDT	6.9	10.00	Mostly Clear	--	69.8	66.2	88%	NA	NA	29.92	1013.2
03:35 AM CDT	9.2	10.00	Clear	--	69.8	68.0	94%	NA	NA	29.92	1013.2
03:20 AM CDT	NE 11.5	10.00	Clear	--	69.8	68.0	94%	NA	NA	29.92	1013.2
03:15 AM CDT	9.2	10.00	Clear	--	69.8	68.0	94%	NA	NA	29.92	1013.2
03:10 AM CDT	NE 11.5	10.00	Clear	--	69.8	68.0	94%	NA	NA	29.92	1013.2
02:55 AM CDT	NE 9.2	10.00	Clear	--	69.8	68.0	94%	NA	NA	29.93	1013.5
02:50 AM CDT	NE 6.9	10.00	Clear	--	69.8	68.0	94%	NA	NA	29.93	1013.5
02:45 AM CDT	6.9	10.00	Clear	--	69.8	68.0	94%	NA	NA	29.93	1013.5
02:40 AM CDT	NE 6.9	10.00	Light Rain	--	69.8	68.0	94%	NA	NA	29.94	1013.9
02:35 AM CDT	NE 6.9	10.00	Light Rain	--	69.8	68.0	94%	NA	NA	29.94	1013.9
02:30 AM CDT	NE 6.9	10.00	Light Rain	--	69.8	68.0	94%	NA	NA	29.94	1013.9
02:25 AM CDT	NE 6.9	10.00	Light Rain	--	69.8	68.0	94%	NA	NA	29.94	1013.9
02:20 AM CDT	NE 6.9	10.00	Light Rain	--	69.8	68.0	94%	NA	NA	29.94	1013.9
02:10 AM CDT	8.1	7.00	Rain	--	69.8	68.0	94%	NA	NA	29.95	1014.2
02:05 AM CDT	6.9	6.00	Rain and Fog/Mist	--	69.8	68.0	94%	NA	NA	29.95	1014.2
01:50 AM CDT	5.7	8.00	Rain	--	69.8	69.8	100%	NA	NA	29.95	1014.2
01:45 AM CDT	5.7	8.00	Rain	--	69.8	69.8	100%	NA	NA	29.95	1014.2
01:40 AM CDT	E 4.6	8.00	Rain	--	69.8	69.8	100%	NA	NA	29.95	1014.2
01:30 AM CDT	5.7	8.00	Rain	--	69.8	69.8	100%	NA	NA	29.95	1014.2
01:20 AM CDT	NE 8.1	7.00	Light Rain	--	69.8	68.0	94%	NA	NA	29.95	1014.2
01:15 AM CDT	8.1	6.00	Rain and Fog/Mist	--	69.8	68.0	94%	NA	NA	29.96	1014.6
01:10 AM CDT	10.4	5.00	Rain and Fog/Mist	--	69.8	69.8	100%	NA	NA	29.96	1014.6
01:05 AM CDT	10.4	5.00	Heavy Rain and Fog/Mist	--	69.8	69.8	100%	NA	NA	29.95	1014.2
01:00 AM CDT	6.9	4.00	Rain and Fog/Mist	--	69.8	69.8	100%	NA	NA	29.96	1014.6
12:50 AM CDT	11.5	1.25	Heavy Rain and Fog/Mist	--	69.8	69.8	100%	NA	NA	29.97	1014.9
12:40 AM CDT		0.75	Heavy Rain and Fog/Mist	--	69.8	69.8	100%	NA	NA	29.99	1015.6
12:35 AM CDT		1.50	Heavy Rain and Fog/Mist	--	71.6	69.8	94%	NA	72.9	30.00	1015.9
12:30 AM CDT	SW 6.9	3.00	Heavy Rain and Fog/Mist	--	71.6	69.8	94%	NA	72.9	30.00	1015.9
12:20 AM CDT	8.1	9.00	Light Rain	--	71.6	69.8	94%	NA	72.9	29.98	1015.2