Current Conditions: ALTON/ST LOUIS R

Clear

44.8 F

Last Updated on Feb 28 2026, 12:15 AM CST

Humidity:	%
Wind Speed:	0.0 mph
Barometer	in
Dewpoint:	F
Visibility:	10.00 mi
Precip:	--
Heat Index:	NA
Wind Chill:	NA

Current conditions at:

ALTON/ST LOUIS R (KALN)

Lat: 38.9 Lon: 90.05


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Observation History for ALTON/ST LOUIS R

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)	Rmks
12:15 AM CST	0.0	10.00	Clear	--	44.8		%	NA	NA		M
11:55 PM CST	0.0	10.00	Clear	--	NULL		%	NA	NA		M
11:35 PM CST	3.4	10.00	Clear	--	56.5		%	NA	NA		M
06:50 PM CST	3.4	10.00	Clear	--	60.8		%	NA	NA		M
05:50 PM CST	W 8.1	10.00	NULL	--	68.0		%	NA	NA		M
04:50 PM CST	12.8	10.00	Clear	--	73.4		%	NA	NA		M
03:50 PM CST	G 26.4	10.00	Clear	--	75.2		%	NA	NA		M
02:50 PM CST		10.00	Clear	--	73.4		%	NA	NA		M
01:55 PM CST	16.1 G 26.4	10.00	Clear	--	71.6		%	NA	NA		M
12:45 PM CST	15.0 G 20.8	10.00	Clear	--	69.8		%	NA	NA		M
11:45 AM CST	10.4	10.00	Clear	--	68.0		%	NA	NA		M
10:45 AM CST	5.8	10.00	Clear	--	60.8		%	NA	NA		M
09:45 AM CST	9.2	10.00	NULL	--	55.4		%	NA	NA		M
08:45 AM CST	S 4.6	10.00	Clear	--	46.4		%	44.2	NA		M
07:45 AM CST	SE 3.4	10.00	Clear	--	35.6		%	32.9	NA		M
06:45 AM CST	0.0	10.00	Clear	--	30.2		%	NA	NA		M
06:35 AM CST	3.4	7.00	Clear	--	32.0		%	28.8	NA		M
06:15 AM CST	0.0	7.00	Clear	--	30.7		%	NA	NA		M
05:55 AM CST	SE 3.4	7.00	Clear	--	30.2		%	26.6	NA		M
05:35 AM CST	0.0	7.00	Clear	--	31.8		%	NA	NA		M
05:15 AM CST	S 3.4	7.00	Clear	--	33.3		%	30.2	NA		M
04:55 AM CST	0.0	5.00	Fog/Mist	--	31.8		%	NA	NA		M
04:35 AM CST	S 3.4	7.00	Clear	--	32.0		%	28.8	NA		M
04:15 AM CST	0.0	10.00	Clear	--	31.8		%	NA	NA		M

Regional Weather Observation

	ALTON/ST LOUIS R (KALN) Clear 44.8 F
	ST CHARLES (KSET) Clear 55.4 F
	ST LOUIS (KSTL) Clear 55.4 F

	LITCHFIELD MUNI (K3LF) Clear NULL F
	JACKSONVILLE (KIJX) Clear NULL F
	ST LOUIS/SPIRIT (KSUS) Clear NULL F

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