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Hazardous Weather Conditions

No active alerts for DENISON, IOWA

Current Conditions: DENISON, IOWA

Clear


17.6 F
Last Updated on Feb 28 2026, 09:15 PM CST
Humidity: 86%
Wind Speed: NE 15.0 G 21.9 mph
Barometer: 30.35 in
Dewpoint: 14.0 F
Visibility: 10.00 mi
Precip: --
Heat Index: NA
Wind Chill: 3.2 F
Current conditions at:

STORM LAKE (KSLB)

Lat: 42.6 Lon: -95.23

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5 Day Forecast for DENISON, IOWA (51442)

Saturday
Chance of Snow
High 39 °F
Saturday
Night
Mostly Cloudy
Low 17 °F
Sunday
Overcast
High 32 °F
Sunday
Night
Overcast
Low 23 °F
Monday
Slight Chance of Rain
High 42 °F
Monday
Night
Rain Likely
Low 32 °F
Tuesday
Slight Chance of Rain
High 50 °F
Tuesday
Night
Partly Cloudy
Low 32 °F
Wednesday
Partly Sunny
High 53 °F



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Observation History for DENISON, IOWA


Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
09:15 PM CST NE 15.0 G 21.9 10.00 Clear -- 17.6 14.0 86% 3.2 NA 30.35 1027.8
08:55 PM CST NE 16.1 10.00 Clear -- 17.6 14.0 86% 2.7 NA 30.34 1027.4
08:35 PM CST NE 16.1 10.00 Clear -- 17.6 14.0 86% 2.7 NA 30.33 1027.1
08:15 PM CST NE 18.3 G 24.2 10.00 Clear -- 19.4 14.0 79% 4.1 NA 30.32 1026.8
07:55 PM CST NE 15.0 10.00 Clear -- 19.4 15.8 86% 5.5 NA 30.32 1026.8
07:35 PM CST NE 15.0 NULL Clear -- 21.2 15.8 79% 7.7 NA 30.32 1026.8
07:15 PM CST G 21.9 10.00 Clear -- NULL % NA NA M
06:55 PM CST NE 16.1 10.00 Clear -- 23.0 15.8 74% 9.7 NA 30.29 1025.7
06:35 PM CST NE 15.0 10.00 Clear -- 23.0 15.8 74% 10.0 NA 30.28 1025.4
06:15 PM CST NE 18.3 10.00 Clear -- 24.8 15.8 68% 11.1 NA 30.26 1024.7
05:55 PM CST 15.0 10.00 Clear -- 26.6 15.8 63% 14.7 NA 30.26 1024.7
05:35 PM CST 15.0 G 23.0 10.00 Clear -- 28.4 15.8 59% 17.1 NA 30.25 1024.4
05:15 PM CST 10.00 Clear -- NULL % NA NA M
04:55 PM CST 13.9 G 20.8 10.00 Clear -- 30.2 15.8 55% 19.8 NA 30.22 1023.4
04:35 PM CST 16.1 10.00 Clear -- 30.2 15.8 55% 18.9 NA 30.22 1023.4
04:15 PM CST NE 17.2 10.00 Clear -- 30.2 15.8 55% 18.5 NA 30.21 1023.0
03:55 PM CST 18.3 10.00 Clear -- 30.2 15.8 55% 18.1 NA 30.20 1022.7
03:35 PM CST 15.0 G 21.9 10.00 Mostly Clear -- 30.2 15.8 55% 19.2 NA 30.20 1022.7
11:55 AM CST 17.2 G 24.2 10.00 Mostly Cloudy -- 30.2 15.8 55% 18.5 NA 30.22 1023.4
11:35 AM CST NE 19.7 10.00 Mostly Clear and Windy -- 30.2 15.8 55% 17.8 NA 30.21 1023.0
11:15 AM CST 19.7 G 27.7 10.00 Clear and Windy -- 30.2 15.8 55% 17.8 NA 30.20 1022.7
10:55 AM CST 16.1 G 21.9 10.00 Clear -- 28.4 15.8 59% 16.5 NA 30.20 1022.7
10:35 AM CST 16.1 G 24.2 10.00 Clear -- 28.4 14.0 54% 16.5 NA 30.19 1022.4
10:15 AM CST NE 17.2 10.00 Clear -- 28.4 12.2 50% 16.2 NA 30.18 1022.0

Regional Weather Observation

STORM LAKE (KSLB)

Clear
17.6 F

CHEROKEE (KCKP)

Mostly Cloudy
17.6 F

DENISON (KDNS)

Mostly Cloudy
24.8 F

CARROLL (KCIN)

Clear
23.0 F

SIOUX CITY (KSUX)

Clear
21.2 F

HARLAN MUNI (KHNR)

Clear
24.8 F

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