HARLAN, IA 51537 Weather Forecast & Current Conditions

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HARLAN, IA
Current Weather

3:15 AM CST JAN 5, 2026
Clear
28°F
Feels Like: 22°F
Dewpoint: 28°F
Rel. Hum.: 100%
Visibility: 7 miles
Wind: SSW at 5 mph
Pressure: 29.75 inches
Last 72 hours

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HARLAN, IA 51537
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly cloudy. Highs in the lower 50s. South winds 5 to 10 mph.
TONIGHT
Mostly cloudy. Patchy fog in the evening, then areas of fog after midnight. Lows in the lower 30s. South winds around 5 mph, becoming west after midnight.
TUESDAY
Patchy fog in the morning. Mostly sunny. Highs in the mid 40s. Northwest winds 5 to 10 mph.
TUESDAY NIGHT
Mostly clear. Lows around 30. Southwest winds around 5 mph.
WEDNESDAY
Sunny. Highs in the mid 50s. Southwest winds 5 to 10 mph.
WEDNESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 30s.
THURSDAY
Mostly cloudy. Highs in the upper 40s.
THURSDAY NIGHT
Cloudy. A slight chance of rain in the evening, then a chance of rain with a slight chance of snow after midnight. Lows around 30. Chance of precipitation 40 percent.
FRIDAY
Mostly cloudy with a chance of rain and snow. Highs in the upper 30s. Chance of precipitation 50 percent.
FRIDAY NIGHT
Mostly cloudy with a chance of snow with a slight chance of rain in the evening, then partly cloudy after midnight. Lows in the lower 20s. Chance of precipitation 30 percent.
SATURDAY
Mostly sunny. A slight chance of snow in the morning. Highs in the lower 30s. Chance of snow 20 percent.
SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows around 15.
SUNDAY
Sunny. Highs in the mid 30s.

Visible Weather Satellite
HARLAN, IA 51537
Infrared Weather Satellite
HARLAN, IA 51537
NEXRAD Weather Radar
HARLAN, IA 51537

HARLAN, IA 3 hourly weather forecast

weather forecast created  4:00 PM PST  1/ 4/2026
Monday
5 JAN 2026
HARLAN, IA 51537 weather forecast Day 1, 0 hours 12 AM 33° 30° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   3 96% 32°
Low 30° HARLAN, IA 51537 weather forecast Day 1, 3 hours 3 AM 32° 29° Mostly Cloudy SSW   1 96% 31°
High 49° HARLAN, IA 51537 weather forecast Day 1, 6 hours 6 AM 31° 28° Mostly Cloudy 1%

0% Thunder
( 0% severe)
SSE   1 100% 31°

Mostly Cloudy



HARLAN, IA 51537 weather forecast Day 1, 9 hours 9 AM 35° 33° Mostly Cloudy SE   2 92% 33°
HARLAN, IA 51537 weather forecast Day 1, 12 hours 12 PM 46° 42° Mostly Cloudy 2%

0% Thunder
( 1% severe)
SSE   7 73% 38°
HARLAN, IA 51537 weather forecast Day 1, 15 hours 3 PM 49° 46° Mostly Cloudy SE   7 68% 39°
HARLAN, IA 51537 weather forecast Day 1, 18 hours 6 PM 42° 39° Mostly Cloudy 1%

0% Thunder
( 0% severe)
SE   5 89% 39°
HARLAN, IA 51537 weather forecast Day 1, 21 hours 9 PM 38° 36° Mostly Cloudy S   1 100% 38°
Tuesday
6 JAN 2026
HARLAN, IA 51537 weather forecast Day 2, 0 hours 12 AM 36° 34° Mostly Cloudy 1%

0% Thunder
( 0% severe)
SW   2 100% 36°
Low 31° HARLAN, IA 51537 weather forecast Day 2, 3 hours 3 AM 35° 30° Mostly Cloudy W   6 100% 35°
High 46° HARLAN, IA 51537 weather forecast Day 2, 6 hours 6 AM 34° 27° Mostly Cloudy 0%

0% Thunder
( 0% severe)
WNW   9 96% 33°

Partly Cloudy



HARLAN, IA 51537 weather forecast Day 2, 9 hours 9 AM 35° 28° Partly Cloudy NW   8 92% 33°
HARLAN, IA 51537 weather forecast Day 2, 12 hours 12 PM 42° 36° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   10 73% 34°
HARLAN, IA 51537 weather forecast Day 2, 15 hours 3 PM 45° 40° Partly Cloudy W   9 65% 34°
HARLAN, IA 51537 weather forecast Day 2, 18 hours 6 PM 38° 36° Clear 0%

0% Thunder
( 0% severe)
WSW   3 82% 33°
HARLAN, IA 51537 weather forecast Day 2, 21 hours 9 PM 34° 32° Partly Cloudy SSW   1 89% 31°

HARLAN, IA extended weather forecast

Wednesday
7 JAN 2026
Thursday
8 JAN 2026
Friday
9 JAN 2026
Saturday
10 JAN 2026
Sunday
11 JAN 2026
Low 28° Low 31° Low 31° Low 20° Low 15°
High 58° High 52° High 40° High 30° High 32°
HARLAN, IA 51537 weather forecast Day 3 HARLAN, IA 51537 weather forecast Day 4 HARLAN, IA 51537 weather forecast Day 5 HARLAN, IA 51537 weather forecast Day 6 HARLAN, IA 51537 weather forecast Day 7
Clear
2% Rain
Mostly Cloudy
12% Rain
Overcast
78% Rain/Snow
Overcast
65% Snow
Partly Cloudy
17% Snow
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