HARLAN, IA 51537 Weather Forecast & Current Conditions

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HARLAN, IA
Current Weather

7:55 AM CST JAN 4, 2026
Clear
27°F
Feels Like: 18°F
Dewpoint: 25°F
Rel. Hum.: 92%
Visibility: 8 miles
Wind: S at 9 mph
Pressure: 29.98 inches
Last 72 hours

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HARLAN, IA 51537
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly cloudy this morning, then clearing. Not as cool with highs in the mid 40s. South winds 15 to 20 mph with gusts up to 35 mph.
TONIGHT
Mostly clear in the evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the lower 30s. South winds 10 to 15 mph with gusts up to 25 mph, becoming southwest around 5 mph after midnight.
MONDAY
Partly sunny in the morning, then becoming mostly cloudy. Patchy fog in the morning. Highs around 50. South winds around 5 mph.
MONDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 30s. South winds around 5 mph, becoming west after midnight.
TUESDAY
Mostly sunny. Highs in the upper 40s. Northwest winds 5 to 10 mph.
TUESDAY NIGHT
Mostly clear. Lows in the lower 30s.
WEDNESDAY
Sunny. Highs in the mid 50s.
WEDNESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 30s.
THURSDAY
Partly sunny. Highs in the upper 40s.
THURSDAY NIGHT
Mostly cloudy with a 20 percent chance of rain. Lows in the upper 20s.
FRIDAY
Mostly cloudy in the morning, then becoming partly sunny. A chance of rain. A chance of snow in the afternoon. Highs in the lower 40s. Chance of precipitation 30 percent.
FRIDAY NIGHT
A slight chance of rain in the evening. Mostly cloudy with a slight chance of snow. Lows in the mid 20s. Chance of precipitation 20 percent.
SATURDAY
Mostly cloudy with a slight chance of snow in the morning, then partly sunny in the afternoon. Highs in the mid 30s. Chance of snow 20 percent.

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/ 3/2026
Sunday
4 JAN 2026
HARLAN, IA 51537 weather forecast Day 1, 0 hours 12 AM 27° 24° Mostly Cloudy 0%

0% Thunder
( 0% severe)
SE   1 96% 26°
Low 26° HARLAN, IA 51537 weather forecast Day 1, 3 hours 3 AM 27° 22° Mostly Cloudy SSE   5 96% 26°
High 45° HARLAN, IA 51537 weather forecast Day 1, 6 hours 6 AM 27° 17° Mostly Cloudy 3%

0% Thunder
( 0% severe)
SSE   10 96% 26°

Mostly Cloudy



HARLAN, IA 51537 weather forecast Day 1, 9 hours 9 AM 32° 22° Mostly Cloudy S   15 85% 28°
HARLAN, IA 51537 weather forecast Day 1, 12 hours 12 PM 40° 31° Mostly Cloudy 2%

0% Thunder
( 0% severe)
S   20 70% 31°
HARLAN, IA 51537 weather forecast Day 1, 15 hours 3 PM 45° 37° Partly Cloudy S   18 63% 33°
HARLAN, IA 51537 weather forecast Day 1, 18 hours 6 PM 39° 31° Clear 0%

0% Thunder
( 0% severe)
S   13 79% 33°
HARLAN, IA 51537 weather forecast Day 1, 21 hours 9 PM 36° 29° Partly Cloudy SSW   9 89% 33°
Monday
5 JAN 2026
HARLAN, IA 51537 weather forecast Day 2, 0 hours 12 AM 34° 30° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   5 96% 33°
Low 30° HARLAN, IA 51537 weather forecast Day 2, 3 hours 3 AM 32° 29° Partly Cloudy SSW   1 96% 31°
High 50° HARLAN, IA 51537 weather forecast Day 2, 6 hours 6 AM 31° 28° Mostly Cloudy 0%

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

Mostly Cloudy



HARLAN, IA 51537 weather forecast Day 2, 9 hours 9 AM 35° 33° Mostly Cloudy SSE   1 92% 33°
HARLAN, IA 51537 weather forecast Day 2, 12 hours 12 PM 46° 43° Mostly Cloudy 0%

0% Thunder
( 0% severe)
S   6 73% 38°
HARLAN, IA 51537 weather forecast Day 2, 15 hours 3 PM 49° 46° Mostly Cloudy SSE   7 68% 39°
HARLAN, IA 51537 weather forecast Day 2, 18 hours 6 PM 42° 39° Mostly Cloudy 0%

0% Thunder
( 0% severe)
SSE   5 89% 39°
HARLAN, IA 51537 weather forecast Day 2, 21 hours 9 PM 37° 35° Partly Cloudy S   2 96% 36°

HARLAN, IA extended weather forecast

Tuesday
6 JAN 2026
Wednesday
7 JAN 2026
Thursday
8 JAN 2026
Friday
9 JAN 2026
Saturday
10 JAN 2026
Low 33° Low 29° Low 29° Low 24° Low 19°
High 49° High 55° High 49° High 44° High 34°
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
6% Rain
Clear
6% Rain
Partly Cloudy
14% Rain/Snow
Mostly Cloudy
15% Snow
Partly Cloudy
15% Snow
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