10-day forecast for Harrisburg, IA: 61° to 99°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
99°
Best day: Tuesday, August 11
77° · 1.18 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1095° / 75°0
Morning79°feels 79°
Afternoon91°feels 95°
Evening88°feels 92°
Overnight80°feels 80°
95 °
Harrisburg, Monday, 10 August
Overcast. High 95°, low 75°.
Pressure29.85 inHg
Wind9.3 mph SW
Humidity49%
Visibility6.2 mi
Dew point67°
Tue, 1199° / 72°0.01
Morning77°feels 78°
Afternoon97°feels 101°
Evening89°feels 94°
Overnight75°feels 75°
99 °
Harrisburg, Tuesday, 11 August
Light rain. High 99°, low 72°.
Pressure29.77 inHg
Wind18.1 mph SW
Humidity47%
Visibility6.2 mi
Dew point67°
Wed, 1293° / 69°0.05
Morning74°feels 75°
Afternoon92°feels 98°
Evening78°feels 80°
Overnight73°feels 73°
93 °
Harrisburg, Wednesday, 12 August
Light rain. High 93°, low 69°.
Pressure29.83 inHg
Wind5.7 mph E
Humidity58%
Visibility6.2 mi
Dew point72°
Thu, 1377° / 65°1.18
Morning70°feels 72°
Afternoon75°feels 77°
Evening69°feels 70°
Overnight70°feels 72°
77 °
Harrisburg, Thursday, 13 August
Heavy rain. High 77°, low 65°.
Pressure29.88 inHg
Wind16.4 mph E
Humidity84%
Visibility—
Dew point71°
Fri, 1475° / 64°0.26
Morning68°feels 69°
Afternoon74°feels 75°
Evening71°feels 72°
Overnight67°feels 68°
75 °
Harrisburg, Friday, 14 August
Light rain. High 75°, low 64°.
Pressure30.03 inHg
Wind16.6 mph E
Humidity76%
Visibility—
Dew point65°
Sat, 1588° / 66°0.13
Morning69°feels 70°
Afternoon78°feels 80°
Evening81°feels 87°
Overnight73°feels 75°
88 °
Harrisburg, Saturday, 15 August
Light rain. High 88°, low 66°.
Pressure30.06 inHg
Wind13.2 mph E
Humidity79%
Visibility—
Dew point69°
Sun, 1682° / 64°0.01
Morning73°feels 75°
Afternoon78°feels 79°
Evening75°feels 75°
Overnight66°feels 67°
82 °
Harrisburg, Sunday, 16 August
Light rain. High 82°, low 64°.
Pressure30.09 inHg
Wind14.3 mph N
Humidity67%
Visibility—
Dew point65°
Mon, 1779° / 61°0
Morning66°feels 66°
Afternoon79°feels 79°
Evening74°feels 74°
Overnight69°feels 69°
79 °
Harrisburg, Monday, 17 August
Overcast. High 79°, low 61°.
Pressure30.12 inHg
Wind7 mph SE
Humidity54%
Visibility—
Dew point59°
Tue, 1889° / 62°0
Morning69°feels 70°
Afternoon84°feels 88°
Evening83°feels 90°
Overnight72°feels 73°
89 °
Harrisburg, Tuesday, 18 August
Overcast. High 89°, low 62°.
Pressure29.80 inHg
Wind12.3 mph S
Humidity61%
Visibility—
Dew point66°
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 Harrisburg, 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.