Arnold, MO Current Weather Conditions

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

▼Current Conditions — Arnold, MO

ST LOUIS/SPIRIT (KSUS)

Clear

98.6 F

Humidity:	37%
Wind Speed:	6.9 mph
Barometer:	29.96 in
Dewpoint:	68.0 F
Visibility:	10.00 mi
Precip:	--
Heat Index:	104.2 F
Wind Chill:	NA

Sep 1 2026, 04:05 PM CDT

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▼Hourly Observation History — Arnold, 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)
04:05 PM CDT	6.9	10.00	Clear	--	98.6	68.0	37%	NA	104.2	29.96	1014.6
03:54 PM CDT	3.4	10.00	Mostly Clear	--	99.0	66.9	35%	NA	103.8	29.97	1014.9
03:50 PM CDT	0.0	10.00	Clear	--	98.6		%	NA	NA	29.97	1014.9
03:45 PM CDT	3.4	10.00	Clear	--	98.6	68.0	37%	NA	104.2	29.97	1014.9
03:35 PM CDT	SW 5.7	10.00	Clear	--	98.6	68.0	37%	NA	104.2	29.97	1014.9
03:30 PM CDT	SW 5.7	10.00	Clear	--	98.6		%	NA	NA	29.97	1014.9
03:15 PM CDT	3.4	10.00	Clear	--	98.6		%	NA	NA	29.98	1015.2
03:10 PM CDT	5.7	10.00	Clear	--	98.6	66.2	35%	NA	102.7	29.98	1015.2
03:05 PM CDT	6.9	10.00	Clear	--	96.8	66.2	37%	NA	100.6	29.98	1015.2
02:54 PM CDT	6.9	10.00	Clear	--	98.1	66.9	36%	NA	102.7	29.99	1015.6
02:50 PM CDT	6.9	10.00	Clear	--	98.6	66.2	35%	NA	102.7	29.99	1015.6
02:40 PM CDT	4.6	10.00	Clear	--	96.8	69.8	42%	NA	103.6	29.99	1015.6
02:35 PM CDT	3.4	10.00	Clear	--	96.8	69.8	42%	NA	103.6	29.99	1015.6
02:30 PM CDT	4.6	10.00	Clear	--	98.6	68.0	37%	NA	104.2	29.99	1015.6
02:20 PM CDT	0.0	10.00	Clear	--	96.8	68.0	39%	NA	102.0	30.00	1015.9
02:10 PM CDT	SW 8.1	10.00	Clear	--	96.8	68.0	39%	NA	102.0	30.00	1015.9
02:05 PM CDT	SW 5.7	10.00	Clear	--	96.8	69.8	42%	NA	103.6	30.00	1015.9
01:45 PM CDT	SW 4.6	10.00	Clear	--	96.8	69.8	42%	NA	103.6	30.01	1016.3
01:35 PM CDT	SW 5.7	10.00	Clear	--	96.8	69.8	42%	NA	103.6	30.01	1016.3
01:30 PM CDT	5.7	10.00	Clear	--	96.8	69.8	42%	NA	103.6	30.01	1016.3
01:25 PM CDT	3.4	10.00	Clear	--	95.0	69.8	44%	NA	101.5	30.01	1016.3
01:20 PM CDT	4.6	10.00	Clear	--	95.0	69.8	44%	NA	101.5	30.02	1016.6
01:10 PM CDT	SW 3.4	10.00	Clear	--	95.0	71.6	47%	NA	103.1	30.02	1016.6
01:00 PM CDT	3.4	10.00	Clear	--	95.0	69.8	44%	NA	101.5	30.02	1016.6
12:50 PM CDT	0.0	10.00	Clear	--	93.2	69.8	47%	NA	99.1	30.03	1016.9
12:35 PM CDT	W 4.6	10.00	Clear	--	93.2	69.8	47%	NA	99.1	30.03	1016.9
12:30 PM CDT	4.6	10.00	Clear	--	93.2	69.8	47%	NA	99.1	30.03	1016.9
12:20 PM CDT	5.7	10.00	Clear	--	93.2	71.6	50%	NA	100.9	30.03	1016.9
12:15 PM CDT	4.6	10.00	Clear	--	93.2	71.6	50%	NA	100.9	30.03	1016.9
12:10 PM CDT	SW 3.4	10.00	Clear	--	93.2	71.6	50%	NA	100.9	30.04	1017.3
12:05 PM CDT	5.7	10.00	Clear	--	93.2	71.6	50%	NA	100.9	30.04	1017.3
12:00 PM CDT		10.00	Clear	--	91.4	71.6	53%	NA	98.6	30.04	1017.3
11:50 AM CDT	SW 4.6	10.00	Clear	--	91.4	69.8	49%	NA	97.0	30.04	1017.3
11:40 AM CDT	5.7	10.00	Clear	--	91.4	71.6	53%	NA	98.6	30.04	1017.3
11:30 AM CDT	W 6.9	10.00	Clear	--	91.4	71.6	53%	NA	98.6	30.05	1017.6
11:20 AM CDT	6.9	10.00	Clear	--	91.4	71.6	53%	NA	98.6	30.05	1017.6
11:15 AM CDT	W 8.1	10.00	Clear	--	89.6	69.8	52%	NA	94.8	30.05	1017.6
11:10 AM CDT	9.2	10.00	Clear	--	89.6	71.6	56%	NA	96.4	30.05	1017.6
11:00 AM CDT	6.9	10.00	Clear	--	89.6	71.6	56%	NA	96.4	30.05	1017.6
10:45 AM CDT	9.2	10.00	Clear	--	89.6	71.6	56%	NA	96.4	30.05	1017.6
10:40 AM CDT	W 8.1	10.00	Clear	--	89.6	71.6	56%	NA	96.4	30.05	1017.6
10:30 AM CDT	10.4	10.00	Clear	--	87.8	71.6	59%	NA	94.3	30.05	1017.6
10:25 AM CDT	10.4 G 16.1	10.00	Clear	--	87.8	71.6	59%	NA	94.3	30.05	1017.6
10:20 AM CDT	11.5	10.00	Clear	--	87.8	71.6	59%	NA	94.3	30.05	1017.6
10:10 AM CDT	9.2	10.00	Clear	--	87.8	69.8	55%	NA	92.7	30.05	1017.6
10:00 AM CDT	SW 9.2	10.00	Clear	--	87.8	69.8	55%	NA	92.7	30.05	1017.6
09:50 AM CDT	8.1	10.00	Clear	--	87.8	69.8	55%	NA	92.7	30.05	1017.6
09:35 AM CDT	9.2	10.00	Clear	--	86.0	69.8	59%	NA	90.7	30.05	1017.6
09:30 AM CDT	W 10.4	10.00	Clear	--	84.2	69.8	62%	NA	88.5	30.05	1017.6
09:20 AM CDT	10.4	10.00	Clear	--	84.2	69.8	62%	NA	88.5	30.05	1017.6
09:15 AM CDT	9.2	10.00	Clear	--	84.2	69.8	62%	NA	88.5	30.05	1017.6
09:10 AM CDT	8.1	10.00	Clear	--	84.2	69.8	62%	NA	88.5	30.05	1017.6
09:05 AM CDT	6.9	10.00	Clear	--	84.2	69.8	62%	NA	88.5	30.05	1017.6
09:00 AM CDT	6.9	10.00	Clear	--	82.4	69.8	66%	NA	86.2	30.05	1017.6
08:50 AM CDT	5.7	10.00	Clear	--	82.4	69.8	66%	NA	86.2	30.05	1017.6
08:40 AM CDT	4.6	10.00	Clear	--	82.4	69.8	66%	NA	86.2	30.05	1017.6
08:35 AM CDT	4.6	10.00	Clear	--	82.4	69.8	66%	NA	86.2	30.05	1017.6
08:30 AM CDT	W 4.6	10.00	Clear	--	80.6	69.8	70%	NA	83.8	30.05	1017.6
08:20 AM CDT	W 3.4	10.00	Clear	--	80.6	68.0	66%	NA	83.3	30.05	1017.6
08:10 AM CDT	W 3.4	10.00	Clear	--	80.6	68.0	66%	NA	83.3	30.05	1017.6
08:05 AM CDT	W 3.4	10.00	Clear	--	78.8	68.0	70%	NA	79.7	30.05	1017.6
07:45 AM CDT	0.0	10.00	Clear	--	78.8	69.8	74%	NA	79.9	30.05	1017.6
07:40 AM CDT	0.0	10.00	Clear	--	77.0	68.0	74%	NA	77.9	30.05	1017.6
07:35 AM CDT	0.0	10.00	Clear	--	75.2	68.0	78%	NA	76.1	30.04	1017.3
07:30 AM CDT	0.0	10.00	Clear	--	75.2	68.0	78%	NA	76.1	30.04	1017.3
07:25 AM CDT	0.0	10.00	Clear	--	75.2	68.0	78%	NA	76.1	30.04	1017.3
07:15 AM CDT	0.0	10.00	Clear	--	75.2	66.2	74%	NA	75.9	30.04	1017.3
07:10 AM CDT	0.0	10.00	Clear	--	73.4	66.2	78%	NA	74.1	30.03	1016.9
06:54 AM CDT	0.0	10.00	Clear	--	72.0	66.9	84%	NA	72.9	30.03	1016.9
06:50 AM CDT	0.0	10.00	Clear	--	73.4	66.2	78%	NA	74.1	30.03	1016.9
06:45 AM CDT	0.0	10.00	Clear	--	71.6	66.2	83%	NA	72.3	30.03	1016.9
06:35 AM CDT	0.0	10.00	Clear	--	73.4	66.2	78%	NA	74.1	30.03	1016.9