Portsmouth, IA Current Weather Conditions

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

▼Current Conditions — Portsmouth, IA

DENISON (KDNS)

Haze

50.0 F

Humidity:	66%
Wind Speed:	11.4 mph
Barometer:	30.08 in
Dewpoint:	39.2 F
Visibility:	6.00 mi
Precip:	--
Heat Index:	NA
Wind Chill:	NA

May 1 2026, 10:35 AM CDT

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▼Hourly Observation History — Portsmouth, IA

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)
10:35 AM CDT	11.4	6.00	Haze	--	50.0	39.2	66%	NA	NA	30.08	1018.6
10:15 AM CDT	9.2 G 17.2	5.00	Haze	--	50.0	39.2	66%	NA	NA	30.08	1018.6
09:55 AM CDT	12.8	5.00	Haze	--	50.0	39.2	66%	NA	NA	30.07	1018.3
09:35 AM CDT	11.4	5.00	Haze	--	48.2	39.2	71%	43.3	NA	30.07	1018.3
09:15 AM CDT	10.3	5.00	Haze	--	46.4	37.4	71%	41.5	NA	30.07	1018.3
08:55 AM CDT	8.1	6.00	Haze	--	44.6	39.2	81%	40.1	NA	30.07	1018.3
08:35 AM CDT	5.8	5.00	Haze	--	44.6	37.4	76%	41.4	NA	30.06	1018.0
08:15 AM CDT		5.00	Haze	--	NULL		%	NA	NA		M
07:55 AM CDT	0.0	5.00	Haze	--	41.0	35.6	81%	NA	NA	30.06	1018.0
07:35 AM CDT	0.0	6.00	Fog/Mist	--	39.2	37.4	93%	NA	NA	30.06	1018.0
07:15 AM CDT	0.0	10.00	Clear	--	37.4	37.4	100%	NA	NA	30.06	1018.0
06:55 AM CDT	0.0	10.00	Clear	--	35.6	35.6	100%	NA	NA	30.05	1017.6
06:35 AM CDT	4.7	6.00	Fog/Mist	--	35.6	35.6	100%	31.6	NA	30.04	1017.3
06:15 AM CDT	SW 4.7	7.00	NULL	--	35.6	35.6	100%	31.6	NA	30.04	1017.3
05:55 AM CDT	3.4	6.00	Fog/Mist	--	35.6	35.6	100%	32.9	NA	30.04	1017.3
05:35 AM CDT	W 4.7	6.00	Fog/Mist	--	35.6	35.6	100%	31.6	NA	30.04	1017.3
05:15 AM CDT	W 3.4	6.00	Fog/Mist	--	35.6	35.6	100%	32.9	NA	30.04	1017.3
04:55 AM CDT	0.0	6.00	Fog/Mist	--	35.6	35.6	100%	NA	NA	30.04	1017.3
04:35 AM CDT	0.0	7.00	Cloudy	--	35.6	35.6	100%	NA	NA	30.04	1017.3
04:15 AM CDT	0.0	10.00	Mostly Cloudy	--	37.4	37.4	100%	NA	NA	30.05	1017.6
03:55 AM CDT	0.0	7.00	Clear	--	37.4	35.6	93%	NA	NA	30.05	1017.6
03:35 AM CDT	0.0	10.00	Partly Cloudy	--	NULL		%	NA	NA	30.05	1017.6
03:15 AM CDT	0.0	10.00	Mostly Cloudy	--	35.6	35.6	100%	NA	NA	30.05	1017.6
02:55 AM CDT	SW 3.4	7.00	Partly Cloudy	--	39.2	33.8	81%	37.0	NA	30.05	1017.6
02:35 AM CDT	0.0	7.00	Mostly Clear	--	37.4	35.6	93%	NA	NA	30.06	1018.0
02:15 AM CDT	0.0	7.00	Partly Cloudy	--	39.2	37.4	93%	NA	NA	30.06	1018.0
01:55 AM CDT	0.0	7.00	NULL	--	39.2	39.2	100%	NA	NA	30.07	1018.3
01:15 AM CDT	0.0	7.00	Cloudy	--	37.4	37.4	100%	NA	NA	30.08	1018.6
12:55 AM CDT	0.0	7.00	Mostly Cloudy	--	39.2	35.6	87%	NA	NA	30.08	1018.6
12:35 AM CDT	0.0	7.00	Cloudy	--	39.2		%	NA	NA	30.08	1018.6
11:55 PM CDT	0.0	7.00	Cloudy	--	35.6	35.6	100%	NA	NA	30.07	1018.3
11:35 PM CDT	0.0	7.00	Cloudy	--	35.6	35.6	100%	NA	NA	30.08	1018.6
11:15 PM CDT	0.0	7.00	Partly Cloudy	--	35.6	35.6	100%	NA	NA	30.08	1018.6
10:55 PM CDT	0.0	7.00	Clear	--	37.4	37.4	100%	NA	NA	30.08	1018.6
10:35 PM CDT	0.0	7.00	Clear	--	37.4	37.4	100%	NA	NA	30.08	1018.6
10:15 PM CDT	0.0	8.00	Clear	--	39.2		%	NA	NA	30.09	1019.0
09:55 PM CDT	0.0	7.00	Mostly Clear	--	39.2	35.6	87%	NA	NA	30.09	1019.0
09:35 PM CDT	0.0	7.00	Clear	--	41.0	35.6	81%	NA	NA	30.09	1019.0
08:55 PM CDT	0.0	7.00	Partly Cloudy	--	44.6	30.2	57%	NA	NA	30.08	1018.6
08:35 PM CDT	NW 5.8	7.00	Clear	--	46.4	28.4	49%	43.5	NA	30.08	1018.6
08:15 PM CDT	NW 5.8	5.00	Haze	--	48.2	30.2	50%	45.7	NA	30.07	1018.3
07:55 PM CDT	NW 6.9	5.00	Haze	--	48.2	30.2	50%	45.1	NA	30.07	1018.3
07:35 PM CDT	6.9	5.00	Haze	--	50.0	30.2	46%	NA	NA	30.07	1018.3
07:15 PM CDT	9.2	6.00	Haze	--	51.8	30.2	43%	NA	NA	30.07	1018.3
06:55 PM CDT	NW 13.9	5.00	Haze	--	51.8	28.4	40%	NA	NA	30.07	1018.3
06:35 PM CDT	11.4	6.00	Haze	--	51.8	28.4	40%	NA	NA	30.07	1018.3
06:15 PM CDT	15.0	6.00	Haze	--	51.8	28.4	40%	NA	NA	30.07	1018.3
05:55 PM CDT	12.8	6.00	Haze	--	51.8	28.4	40%	NA	NA	30.07	1018.3
05:35 PM CDT	17.2	6.00	Haze	--	51.8	28.4	40%	NA	NA	30.07	1018.3
05:15 PM CDT	10.3 G 17.2	6.00	Haze	--	53.6	28.4	38%	NA	NA	30.07	1018.3
04:55 PM CDT	10.3 G 19.7	6.00	Haze	--	53.6	26.6	35%	NA	NA	30.07	1018.3
04:35 PM CDT	13.9	6.00	Haze	--	53.6	26.6	35%	NA	NA	30.06	1018.0
04:15 PM CDT	12.8 G 19.7	5.00	Haze	--	51.8	26.6	37%	NA	NA	30.07	1018.3
03:55 PM CDT	13.9	6.00	Haze	--	53.6	28.4	38%	NA	NA	30.07	1018.3
03:35 PM CDT	15.0 G 26.4	5.00	Haze	--	55.4	30.2	38%	NA	NA	30.07	1018.3
03:15 PM CDT	G 27.7	6.00	Haze	--	55.4	32.0	41%	NA	NA	30.07	1018.3
02:55 PM CDT	17.2 G 24.2	6.00	Haze	--	53.6	32.0	44%	NA	NA	30.08	1018.6
02:35 PM CDT		6.00	Partly Cloudy	--	53.6	32.0	44%	NA	NA	30.07	1018.3
02:15 PM CDT	13.9 G 20.8	6.00	Haze	--	53.6	32.0	44%	NA	NA	30.08	1018.6
01:55 PM CDT	15.0 G 23.0	5.00	Haze	--	51.8	33.8	50%	NA	NA	30.08	1018.6
01:35 PM CDT	13.9	7.00	Mostly Clear	--	53.6	35.6	50%	NA	NA	30.08	1018.6
01:15 PM CDT	13.9	8.00	Mostly Clear	--	51.8	35.6	54%	NA	NA	30.09	1019.0
12:55 PM CDT	10.3	6.00	Haze	--	51.8	37.4	58%	NA	NA	30.10	1019.3
12:35 PM CDT	13.9	10.00	Partly Cloudy	--	50.0	41.0	71%	NA	NA	30.12	1019.7
12:15 PM CDT	11.4 G 19.7	6.00	Haze	--	50.0	39.2	66%	NA	NA	30.12	1020.0
11:55 AM CDT	10.3	6.00	Haze	--	48.2	42.8	81%	43.7	NA	30.12	1020.0
11:35 AM CDT	11.4	6.00	Haze	--	46.4	41.0	81%	41.0	NA	30.12	1020.0
11:15 AM CDT	11.4	5.00	Fog/Mist	--	44.6	42.8	93%	38.8	NA	30.12	1019.7
10:55 AM CDT	12.8	6.00	Fog/Mist	--	42.8	39.2	87%	36.1	NA	30.10	1019.3
10:35 AM CDT	10.3	5.00	Fog/Mist	--	42.8	39.2	87%	37.0	NA	30.10	1019.3
10:15 AM CDT	15.0 G 21.9	5.00	Haze	--	44.6	39.2	81%	37.8	NA	30.10	1019.3
09:55 AM CDT	17.2	5.00	Haze	--	44.6	37.4	76%	37.2	NA	30.09	1019.0