HARLAN, IA 51537 Weather Forecast & Current Conditions
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  51537 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

HARLAN, IA
Current Weather
7:55 AM CDT JUN 29, 2026
Clear
79°F
Feels Like: 82°F
Dewpoint: 73°F
Rel. Hum.: 82%
Visibility: 10 miles
Wind: S at 17 mph, gusts to 26
Pressure: 29.68 inches
Last 72 hours

Local Area Snow Depth

Iowa Current Weather

Iowa MOS Forecast Weather


Weather Map

(Automated weather data from NWS/FAA)
  51537 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

HARLAN, IA 51537
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TODAY
Sunny, breezy with highs in the mid 90s. South winds 15 to 25 mph with gusts up to 35 mph. Heat index values up to 108 this afternoon.
TONIGHT
Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Breezy with lows in the mid 70s. South winds 15 to 25 mph with gusts up to 35 mph, diminishing to 10 to 15 mph with gusts up to 25 mph after midnight. Chance of rain 50 percent.
TUESDAY
Mostly sunny. Humid with highs in the lower 90s. South winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 100.
TUESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Humid with lows in the mid 70s. South winds 10 to 15 mph. Chance of rain 50 percent.
WEDNESDAY
Mostly sunny. A slight chance of showers and thunderstorms in the morning. Breezy with highs in the lower 90s. South winds 15 to 25 mph. Chance of rain 20 percent.
WEDNESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. Lows in the mid 70s. Chance of rain 50 percent.
THURSDAY
Partly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent.
THURSDAY NIGHT
Partly cloudy in the evening, then clearing. A chance of showers with a slight chance of thunderstorms. Lows in the lower 70s. Chance of rain 50 percent.
FRIDAY
Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs around 90. Chance of rain 20 percent.
FRIDAY NIGHT
Mostly clear with a slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent.
INDEPENDENCE DAY
Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 20 percent.
SATURDAY NIGHT
Partly cloudy with a chance of thunderstorms. A chance of showers. Lows around 70. Chance of rain 50 percent.
SUNDAY
Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent.

  51537 WEATHER SATELLITE LOOPS
Visible Weather Satellite
HARLAN, IA 51537
Infrared Weather Satellite
HARLAN, IA 51537
  51537 WEATHER RADAR LOOP
NEXRAD Weather Radar
HARLAN, IA 51537
 MOS COMPUTER WEATHER FORECAST

HARLAN, IA 3 hourly weather forecast
weather forecast created  5:00 PM PDT  6/28/2026
Monday
29 JUN 2026		 HARLAN, IA 51537 weather forecast Day 1, 0 hours 1 AM 81° 86° Clear 0%

 0% Thunder
( 12% severe)		 S   15 79% 74°
Low 76° HARLAN, IA 51537 weather forecast Day 1, 3 hours 4 AM 79° 82° Clear S   15 79% 72°
High 94° HARLAN, IA 51537 weather forecast Day 1, 6 hours 7 AM 77° 79° Clear 0%

 0% Thunder
( 10% severe)		 S   17 79% 70°

Clear




Windy		 HARLAN, IA 51537 weather forecast Day 1, 9 hours 10 AM 85° 91° Clear S   21 65% 72°
HARLAN, IA 51537 weather forecast Day 1, 12 hours 1 PM 91° 101° Clear 1%

 0% Thunder
( 10% severe)		 S   24 58% 74°
HARLAN, IA 51537 weather forecast Day 1, 15 hours 4 PM 93° 105° Clear S   25 56% 75°
HARLAN, IA 51537 weather forecast Day 1, 18 hours 7 PM 92° 103° Partly Cloudy 38%
RAIN
***		 0% Thunder
( 26% severe)		 S   21 58% 75°
HARLAN, IA 51537 weather forecast Day 1, 21 hours 10 PM 84° 92° Mostly Cloudy S   17 74% 75°
Tuesday
30 JUN 2026		 HARLAN, IA 51537 weather forecast Day 2, 0 hours 1 AM 79° 82° Mostly Cloudy 21%
RAIN
.1–.25 in		 0% Thunder
( 33% severe)		 S   12 77% 71°
Low 76° HARLAN, IA 51537 weather forecast Day 2, 3 hours 4 AM 77° 79° Mostly Cloudy S   13 79% 70°
High 92° HARLAN, IA 51537 weather forecast Day 2, 6 hours 7 AM 76° 77° Mostly Cloudy 2%

 0% Thunder
( 16% severe)		 S   13 76% 68°

Mostly Cloudy



 HARLAN, IA 51537 weather forecast Day 2, 9 hours 10 AM 83° 87° Partly Cloudy S   16 65% 70°
HARLAN, IA 51537 weather forecast Day 2, 12 hours 1 PM 89° 94° Partly Cloudy 3%

 0% Thunder
( 15% severe)		 SSW   17 54% 70°
HARLAN, IA 51537 weather forecast Day 2, 15 hours 4 PM 91° 98° Mostly Cloudy SSW   16 52% 71°
HARLAN, IA 51537 weather forecast Day 2, 18 hours 7 PM 89° 96° Mostly Cloudy 20%
RAIN
.01–.1 in		 0% Thunder
( 29% severe)		 SSW   14 57% 72°
HARLAN, IA 51537 weather forecast Day 2, 21 hours 10 PM 81° 86° Mostly Cloudy S   15 77% 73°

HARLAN, IA extended weather forecast
Wednesday
1 JUL 2026		 Thursday
2 JUL 2026		 Friday
3 JUL 2026		 Saturday
4 JUL 2026		 Sunday
5 JUL 2026
Low 73° Low 73° Low 75° Low 72° Low 65°
High 94° High 91° High 92° High 92° High 84°
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
17% Rain		 Partly Cloudy
31% Rain		 Partly Cloudy
23% Rain		 Partly Cloudy
29% Rain		 Partly Cloudy
49% Rain
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