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As of 20:47 CDT

Weather in Harlan, IA

75°Current weather

Harlan, Saturday, 8 August, 20:47

Partly cloudy. Feels like 76°. High 80°, low 61°.

Pressure29.88 inHg
Wind7.8 mph SE
Humidity84%
Visibility6.2 mi
Dew point70°
Sun, 0996° / 75°0.02Light rain
96 °Light rain

Harlan, Sunday, 9 August

Light rain. High 96°, low 75°.

Pressure29.77 inHg
Wind14 mph SW
Humidity44%
Visibility6.2 mi
Dew point65°
Mon, 1091° / 72°0.01Light rain
91 °Light rain

Harlan, Monday, 10 August

Light rain. High 91°, low 72°.

Pressure29.83 inHg
Wind8.8 mph S
Humidity58%
Visibility6.2 mi
Dew point66°
Tue, 1197° / 72°0Partly cloudy
97 °Partly cloudy

Harlan, Tuesday, 11 August

Partly cloudy. High 97°, low 72°.

Pressure29.74 inHg
Wind2.3 mph SE
Humidity41%
Visibility6.2 mi
Dew point64°
Wed, 1290° / 70°0.06Light rain
90 °Light rain

Harlan, Wednesday, 12 August

Light rain. High 90°, low 70°.

Pressure29.88 inHg
Wind10.3 mph E
Humidity49%
Visibility6.2 mi
Dew point62°
Thu, 1371° / 63°0.84Heavy rain
71 °Heavy rain

Harlan, Thursday, 13 August

Heavy rain. High 71°, low 63°.

Pressure29.94 inHg
Wind18 mph NE
Humidity94%
Visibility—
Dew point62°
Fri, 1477° / 59°0Overcast
77 °Overcast

Harlan, Friday, 14 August

Overcast. High 77°, low 59°.

Pressure30.06 inHg
Wind16 mph E
Humidity56%
Visibility—
Dew point56°
Sat, 1567° / 59°0.11Light rain
67 °Light rain

Harlan, Saturday, 15 August

Light rain. High 67°, low 59°.

Pressure30.15 inHg
Wind11.1 mph E
Humidity99%
Visibility—
Dew point64°
Sun, 1679° / 60°0.01Light rain
79 °Light rain

Harlan, Sunday, 16 August

Light rain. High 79°, low 60°.

Pressure30.09 inHg
Wind5.2 mph E
Humidity68%
Visibility—
Dew point63°
Mon, 1787° / 66°0Clear
87 °Clear

Harlan, Monday, 17 August

Clear. High 87°, low 66°.

Pressure30.03 inHg
Wind8.7 mph S
Humidity57%
Visibility—
Dew point64°
Tue, 1892° / 69°0.08Light rain
92 °Light rain

Harlan, Tuesday, 18 August

Light rain. High 92°, low 69°.

Pressure29.94 inHg
Wind9.8 mph SW
Humidity59%
Visibility—
Dew point69°
Wed, 1980° / 65°0.03Light rain
80 °Light rain

Harlan, Wednesday, 19 August

Light rain. High 80°, low 65°.

Pressure30.06 inHg
Wind15.4 mph NE
Humidity65%
Visibility—
Dew point59°
Thu, 2065° / 57°0.03Light rain
65 °Light rain

Harlan, Thursday, 20 August

Light rain. High 65°, low 57°.

Pressure30.15 inHg
Wind15.5 mph E
Humidity68%
Visibility—
Dew point53°
Fri, 2172° / 52°0Overcast
72 °Overcast

Harlan, Friday, 21 August

Overcast. High 72°, low 52°.

Pressure30.03 inHg
Wind15.1 mph SE
Humidity44%
Visibility—
Dew point46°
Sat, 2292° / 59°0.04Light rain
92 °Light rain

Harlan, Saturday, 22 August

Light rain. High 92°, low 59°.

Pressure29.83 inHg
Wind13.9 mph NW
Humidity32%
Visibility—
Dew point51°
Sun, 2392° / 66°0Partly cloudy
92 °Partly cloudy

Harlan, Sunday, 23 August

Partly cloudy. High 92°, low 66°.

Pressure29.94 inHg
Wind8.2 mph N
Humidity25%
Visibility—
Dew point46°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Harlan, IA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Harlan, IA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.