10-day forecast for Harlan, IA: 62° to 106°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
106°
Best day: Tuesday, August 11
75° · 0.69 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1087° / 69°0.01
Morning71°feels 72°
Afternoon80°feels 80°
Evening87°feels 90°
Overnight73°feels 74°
87 °
Harlan, Monday, 10 August
Light rain. High 87°, low 69°.
Pressure29.83 inHg
Wind12.8 mph E
Humidity57%
Visibility6.2 mi
Dew point67°
Tue, 11106° / 70°0
Morning79°feels 79°
Afternoon102°feels 100°
Evening86°feels 85°
Overnight71°feels 71°
106 °
Harlan, Tuesday, 11 August
Overcast. High 106°, low 70°.
Pressure29.71 inHg
Wind10.8 mph SW
Humidity27%
Visibility6.2 mi
Dew point56°
Wed, 1297° / 68°0
Morning74°feels 74°
Afternoon95°feels 96°
Evening88°feels 90°
Overnight68°feels 68°
97 °
Harlan, Wednesday, 12 August
Partly cloudy. High 97°, low 68°.
Pressure29.83 inHg
Wind11.5 mph E
Humidity41%
Visibility6.2 mi
Dew point63°
Thu, 1375° / 66°0.69
Morning71°feels 72°
Afternoon72°feels 73°
Evening68°feels 68°
Overnight70°feels 71°
75 °
Harlan, Thursday, 13 August
Heavy rain. High 75°, low 66°.
Pressure29.85 inHg
Wind18.1 mph E
Humidity88%
Visibility—
Dew point69°
Fri, 1469° / 64°0.55
Morning66°feels 67°
Afternoon68°feels 69°
Evening69°feels 70°
Overnight67°feels 68°
69 °
Harlan, Friday, 14 August
Rain. High 69°, low 64°.
Pressure30.03 inHg
Wind17.3 mph E
Humidity90%
Visibility—
Dew point64°
Sat, 1578° / 66°0.17
Morning67°feels 68°
Afternoon73°feels 74°
Evening76°feels 77°
Overnight68°feels 69°
78 °
Harlan, Saturday, 15 August
Light rain. High 78°, low 66°.
Pressure30.06 inHg
Wind10.7 mph E
Humidity93%
Visibility—
Dew point69°
Sun, 1682° / 64°0
Morning69°feels 70°
Afternoon80°feels 81°
Evening76°feels 77°
Overnight66°feels 66°
82 °
Harlan, Sunday, 16 August
Overcast. High 82°, low 64°.
Pressure30.15 inHg
Wind12.3 mph N
Humidity53%
Visibility—
Dew point60°
Mon, 1773° / 62°0
Morning66°feels 65°
Afternoon72°feels 72°
Evening72°feels 71°
Overnight65°feels 65°
73 °
Harlan, Monday, 17 August
Overcast. High 73°, low 62°.
Pressure30.12 inHg
Wind9.4 mph SE
Humidity66%
Visibility—
Dew point59°
Tue, 1889° / 62°0.09
Morning68°feels 69°
Afternoon84°feels 87°
Evening83°feels 88°
Overnight73°feels 73°
89 °
Harlan, Tuesday, 18 August
Light rain. High 89°, low 62°.
Pressure29.80 inHg
Wind12.2 mph N
Humidity53%
Visibility—
Dew point62°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Harlan, IA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.