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Harpers Ferry, IA

91°F
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Harpers Ferry

Iowa

91°
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Harpers Ferry, IA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities
Heat Advisory

August

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
26
Occasional afternoon rain
78°
62°
27
A little morning rain
80°
63°
28
Mostly cloudy
82°
64°
29
Rain tapering to a shower
77°
63°
30
Clouds and sun
77°
63°
31
Sun and some clouds
77°
62°
1
Cloudy with a touch of rain
78°
64°
2
Cloudy most of the time
76°
66°
3
Rather cloudy and humid
82°
67°
4
Mostly sunny
81°
66°
5
Mostly cloudy
78°
66°
6
Sunshine and less humid
77°
62°
7
Clouds and sun
76°
60°
8
Mostly sunny
76°
60°
9
Mostly cloudy
76°
61°
10
A shower in the afternoon
75°
58°
11
Partly sunny
75°
59°
12
A touch of afternoon rain
78°
66°
13
Humid with clouds; p.m. rain
82°
67°
14
Humid with sun, then clouds
84°
66°
15
Cloudy and humid
82°
65°
16
Humid; afternoon t-storms
79°
66°
17
A shower and thunderstorm
81°
67°
18
A shower and thunderstorm
81°
65°
19
Cloudy and less humid
76°
62°
20
Remaining cloudy
75°
61°
21
Considerable cloudiness
75°
64°
22
A passing afternoon shower
74°
61°
23
Rather cloudy
74°
61°
24
Partly sunny
75°
59°
25
Cloudy
77°
64°
26
Cloudy
79°
65°
27
Cloudy, humid; p.m. t-storms
75°
65°
28
Remaining cloudy and humid
78°
55°
29
Partly sunny and less humid
77°
54°
30
Mostly sunny
77°
54°
31
Sunshine
80°
56°
1
Mostly sunny
82°
60°
2
Mostly sunny
81°
62°
3
Mostly sunny and humid
82°
58°
4
A t-storm around in the p.m.
78°
53°
5
Mostly sunny and less humid
78°
61°

Temperature Graph

°F
90° 82° 74° 66° 58° Aug
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

August Weather in Harpers Ferry

Harpers Ferry's August 2026 forecast shows daily high temperatures ranging from 74° to 84°, with overnight lows between 53° and 67°. The average high for August is 78° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Harpers Ferry. See also: September | October | November.

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World North America United States Iowa Harpers Ferry

Weather Near Harpers Ferry:

  • Cedar Rapids, IA
  • Iowa City, IA
  • Waterloo, IA
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