HARLAN, IA 51537 Weather Forecast & Current Conditions

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HARLAN, IA
Current Weather

1:15 AM CDT SEP 27, 2026
Broken Clouds
66°F
Feels Like: 66°F
Dewpoint: 64°F
Rel. Hum.: 93%
Visibility: 10 miles
Wind: SSE at 6 mph
Pressure:
Last 72 hours

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HARLAN, IA 51537
Weather Forecast

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REST OF TONIGHT
Cloudy with a chance of showers with a slight chance of thunderstorms. Near steady temperature in the mid 60s. Southeast winds around 5 mph. Chance of rain 30 percent.
SUNDAY
Patchy fog in the morning. Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly sunny in the afternoon. Humid with highs in the lower 70s. East winds around 5 mph. Chance of rain 20 percent.
SUNDAY NIGHT
Mostly cloudy. Lows around 60. East winds around 5 mph.
MONDAY
Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 70s. Southeast winds 5 to 10 mph.
MONDAY NIGHT
Mostly cloudy. Lows in the upper 50s. Southeast winds 5 to 10 mph.
TUESDAY
A slight chance of thunderstorms. Showers. Highs in the upper 60s. Chance of rain 90 percent.
TUESDAY NIGHT
Showers with a slight chance of thunderstorms in the evening, then showers likely after midnight. Lows around 60. Chance of rain 90 percent.
WEDNESDAY
Showers likely. Highs around 70. Chance of rain 70 percent.
WEDNESDAY NIGHT
Showers likely. A slight chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 70 percent.
THURSDAY
Mostly cloudy with a chance of showers in the morning, then partly sunny with a slight chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 50 percent.
THURSDAY NIGHT
Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 50s. Chance of rain 30 percent.
FRIDAY
Mostly sunny. A chance of showers in the morning. Highs in the mid 60s. Chance of rain 30 percent.
FRIDAY NIGHT
Partly cloudy. Lows in the lower 50s.

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  5:00 PM PDT  9/26/2026
Sunday
27 SEP 2026
HARLAN, IA 51537 weather forecast Day 1, 0 hours 1 AM 64° 64° Mostly Cloudy 47%
RAIN
***
0% Thunder
( 23% severe)
SSE   7 100% 64°
Low 62° HARLAN, IA 51537 weather forecast Day 1, 3 hours 4 AM 64° 64° Mostly Cloudy SE   6 100% 64°
High 71° HARLAN, IA 51537 weather forecast Day 1, 6 hours 7 AM 63° 64° Mostly Cloudy 16%
RAIN
.01–.1 in
0% Thunder
( 14% severe)
ESE   3 100% 63°

Mostly Cloudy



HARLAN, IA 51537 weather forecast Day 1, 9 hours 10 AM 64° 64° Mostly Cloudy SE   6 100% 64°
HARLAN, IA 51537 weather forecast Day 1, 12 hours 1 PM 68° 68° Mostly Cloudy 3%

0% Thunder
( 15% severe)
E   5 93% 66°
HARLAN, IA 51537 weather forecast Day 1, 15 hours 4 PM 69° 69° Mostly Cloudy ENE   7 90% 66°
HARLAN, IA 51537 weather forecast Day 1, 18 hours 7 PM 67° 67° Mostly Cloudy 2%

0% Thunder
( 3% severe)
E   6 97% 66°
HARLAN, IA 51537 weather forecast Day 1, 21 hours 10 PM 64° 65° Mostly Cloudy E   5 100% 64°
Monday
28 SEP 2026
HARLAN, IA 51537 weather forecast Day 2, 0 hours 1 AM 62° 63° Mostly Cloudy 3%

0% Thunder
( 3% severe)
  CALM 100% 62°
Low 60° HARLAN, IA 51537 weather forecast Day 2, 3 hours 4 AM 61° 62° Mostly Cloudy ESE   2 100% 61°
High 71° HARLAN, IA 51537 weather forecast Day 2, 6 hours 7 AM 60° 60° Mostly Cloudy 4%

0% Thunder
( 3% severe)
ESE   5 100% 60°

Mostly Cloudy



HARLAN, IA 51537 weather forecast Day 2, 9 hours 10 AM 63° 63° Mostly Cloudy ESE   8 93% 61°
HARLAN, IA 51537 weather forecast Day 2, 12 hours 1 PM 68° 68° Mostly Cloudy 0%

0% Thunder
( 3% severe)
SE   9 81% 62°
HARLAN, IA 51537 weather forecast Day 2, 15 hours 4 PM 69° 69° Mostly Cloudy SSE   10 81% 63°
HARLAN, IA 51537 weather forecast Day 2, 18 hours 7 PM 67° 67° Mostly Cloudy 0%

0% Thunder
( 3% severe)
SE   7 87% 63°
HARLAN, IA 51537 weather forecast Day 2, 21 hours 10 PM 63° 63° Mostly Cloudy SE   8 93% 61°

HARLAN, IA extended weather forecast

Tuesday
29 SEP 2026
Wednesday
30 SEP 2026
Thursday
1 OCT 2026
Friday
2 OCT 2026
Saturday
3 OCT 2026
Low 59° Low 61° Low 55° Low 40° Low 44°
High 71° High 72° High 64° High 62° High 65°
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
Overcast
77% Rain
Overcast
84% Rain
Overcast
68% Rain
Clear
10% Rain
Clear
14% Rain
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