U.S. Weather Search

Active Alerts

Loading alert map...

Severe Weather Outlook ?

Day 1 Outlook • April 19, 2026
Day 2 Outlook • April 20, 2026
Day 3 Outlook • April 21, 2026
🔔    Sign-up to receive real-time severe weather alerts via email or text - subscribe

Storm Reports

Loading...

Local Time ▼ Location ⇅ Event ⇅ Detail Source ⇅
Loading reports...
🔔    Sign-up to receive real-time storm reports via email or text - subscribe

Storm report data provided by WxData.com

National Weather Radar

Oldest ◀◀ drag to scrub ▶▶ Newest
dBZ 5
75

Hazardous Weather Conditions

  • No active alerts for HARLAN, IOWA

Current Conditions: HARLAN, IOWA

DENISON (KDNS)

Clear

48.2 F
Humidity:25%
Wind Speed: 12.8 G 18.3 mph
Barometer:30.12 in
Dewpoint:14.0 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:43.0 F
Apr 18 2026, 07:55 PM CDT
Severe Weather Alerts
Severe Weather
 		Daily Weather Forecast
Daily Forecast
 		Observation Alert Monitoring
Observations
 		Storm Report Monitoring
Storm Reports

5 Day Forecast for HARLAN, IOWA (51537)

Saturday

High 55 °F
Partly Sunny
Saturday
Night
Low 33 °F
Mostly Clear
Sunday

High 59 °F
Mostly Sunny
Sunday
Night
Low 32 °F
Mostly Clear
Monday

High 71 °F
Mostly Sunny
Monday
Night
Low 50 °F
Partly Cloudy
Tuesday

High 80 °F
Mostly Sunny
Tuesday
Night
Low 53 °F
Clear
Wednesday

High 82 °F
Mostly Sunny

Detailed Forecast for HARLAN, IOWA (51537)

Saturday
Partly Sunny. High near 55°F. Wind 16 to 21 mph, with gusts as high as 35 mph.
Saturday Night
Mostly Clear. Low around 33°F. Wind 3 to 12 mph, with gusts as high as 21 mph.
Sunday
Mostly Sunny. High near 59°F. Wind 6 to 12 mph, with gusts as high as 17 mph.
Sunday Night
Mostly Clear. Low around 32°F. Wind around 6 mph, with gusts as high as 13 mph.
Monday
Mostly Sunny. High near 71°F. Wind 12 to 16 mph, with gusts as high as 24 mph.
Monday Night
Partly Cloudy. Low around 50°F. Wind 10 to 14 mph, with gusts as high as 22 mph.
Tuesday
Mostly Sunny. High near 80°F. Wind 5 to 9 mph, with gusts as high as 14 mph.
Tuesday Night
Clear. Low around 53°F. Wind around 7 mph, with gusts as high as 13 mph.
Wednesday
Mostly Sunny. High near 82°F. Wind 16 to 20 mph, with gusts as high as 28 mph.
Wednesday Night
Chance of Rain. Low around 59°F. Wind around 21 mph, with gusts as high as 29 mph.
Thursday
Thunderstorms Likely. High near 75°F. Wind 21 to 25 mph, with gusts as high as 32 mph.
Thursday Night
Thunderstorms Likely. Low around 42°F. Wind around 15 mph, with gusts as high as 22 mph.
Friday
Chance of Rain Showers. High near 57°F. Wind 14 to 20 mph, with gusts as high as 26 mph.
Friday Night
Partly Cloudy. Low around 35°F. Wind around 8 mph, with gusts as high as 14 mph.
IA Radar
Current Radar • IA
Day 1 Outlook • April 19, 2026

Observation History for HARLAN, 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)
07:55 PM CDT 12.8 G 18.3 10.00 Clear -- 48.2 14.0 25% 43.0 NA 30.12 1019.7
07:15 PM CDT 16.1 10.00 Clear -- 50.0 14.0 23% NA NA 30.12 1019.7
06:55 PM CDT NW 16.1 G 23.0 10.00 Clear -- 50.0 15.8 25% NA NA 30.12 1019.7
06:35 PM CDT NW 16.1 G 23.0 10.00 Clear -- 50.0 15.8 25% NA NA 30.12 1019.7
06:15 PM CDT G 26.4 10.00 Mostly Clear -- 50.0 15.8 25% NA NA 30.12 1019.7
05:55 PM CDT 15.0 G 26.4 10.00 Clear -- 50.0 14.0 23% NA NA 30.12 1019.7
05:35 PM CDT G 33.3 10.00 Clear -- 51.8 14.0 22% NA NA 30.12 1019.7
05:15 PM CDT G 28.9 10.00 Clear -- 51.8 15.8 24% NA NA 30.10 1019.3
04:55 PM CDT 10.00 Clear -- 51.8 14.0 22% NA NA 30.10 1019.3
04:35 PM CDT G 33.3 9.00 Clear -- 51.8 14.0 22% NA NA 30.12 1019.7
04:15 PM CDT G 30.0 10.00 Clear -- 50.0 14.0 23% NA NA 30.12 1019.7
03:55 PM CDT G 32.2 10.00 Clear -- 51.8 14.0 22% NA NA 30.12 1020.0
03:15 PM CDT G 31.1 10.00 Clear -- 50.0 12.2 22% NA NA 30.13 1020.3
02:55 PM CDT G 31.1 10.00 Clear -- 50.0 12.2 22% NA NA 30.14 1020.7
02:35 PM CDT 17.2 G 27.7 10.00 Clear -- 48.2 12.2 23% 41.9 NA 30.14 1020.7
02:15 PM CDT G 27.7 10.00 Clear -- 48.2 12.2 23% NA NA 30.14 1020.7
01:55 PM CDT 10.00 NULL -- 48.2 12.2 23% NA NA 30.14 1020.7
01:35 PM CDT NW 16.1 G 25.3 10.00 Clear -- 48.2 15.8 27% 42.1 NA 30.14 1020.7
01:15 PM CDT W 17.2 G 27.7 10.00 Clear -- 46.4 14.0 27% 39.6 NA 30.14 1020.7
12:55 PM CDT 18.3 G 30.0 10.00 Clear -- 46.4 12.2 25% 39.2 NA 30.15 1021.0
11:55 AM CDT NW 16.1 G 28.9 10.00 Clear -- 42.8 17.6 36% 35.1 NA 30.15 1021.0
11:35 AM CDT G 30.0 10.00 Clear -- 42.8 19.4 39% NA NA 30.15 1021.0
10:55 AM CDT NW 20.8 G 28.9 10.00 Clear and Windy -- 41.0 19.4 42% 31.6 NA 30.14 1020.7
10:35 AM CDT 10.00 Clear -- 39.2 19.4 45% NA NA 30.13 1020.3

Regional Weather Observation

DENISON (KDNS)

Clear
48.2 F

HARLAN MUNI (KHNR)

Clear
44.6 F

ATLANTIC (KAIO)

Partly Cloudy
48.2 F

OMAHA/EPPLEY (KOMA)

Clear
48.2 F

COUNCIL BLUFFS (KCBF)

Clear
46.4 F

OFFUTT AFB/BELLE (KOFF)

Mostly Clear
52.2 F
🔔    Sign-up to receive daily weather forecasts by email or text - subscribe