Harpers Ferry, IA Weather Forecast
Local 7-day forecast
Areas Of Fog
Track current conditions, temperature changes, wind, and the full daily outlook for Harpers Ferry, IA in one place.
Areas of fog after 5am. Clear, with a low around 69. Wind around 0 mph.
Local Weather Overview
This forecast page for Harpers Ferry, IA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 15, 2026 3:32 AM CDT.
The active forecast window currently covers Jul 15 to Jul 21, 2026 for Harpers Ferry, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 15 to Jul 21, 2026
- Latest sync
- Jul 15, 2026 3:32 AM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Harpers Ferry
Wednesday looks like the warmest upcoming period in Harpers Ferry at 97 degrees F.
Monday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Monday at about 2 to 8 mph W.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 15, 2026 3:32 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- ARX
- Radar station
- KARX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Areas of fog before 9am. Sunny. High near 97, with temperatures falling to around 95 in the afternoon. Heat index values as high as 107. North wind around 1 mph.
Partly cloudy, with a low around 72. Heat index values as high as 105. Wind around 0 mph.
A chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 94. Heat index values as high as 102. South wind around 2 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 70. South wind around 2 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers between 7am and 4pm, then a slight chance of showers and thunderstorms. Sunny, with a high near 94. Southwest wind 0 to 5 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 71. Southwest wind around 3 mph. Chance of precipitation is 20%.
Sunny, with a high near 93. West wind 2 to 7 mph.
Mostly clear, with a low around 68. North wind 0 to 6 mph.
Mostly sunny, with a high near 91. South wind around 2 mph.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 69. Southwest wind around 3 mph. Chance of precipitation is 20%.
A slight chance of rain showers before 1pm. Mostly sunny, with a high near 90. West wind 2 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 66. Northwest wind 3 to 8 mph. Chance of precipitation is 20%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 85. Northwest wind 3 to 8 mph. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 15
|
Areas Of Fog
|
69°F |
0 mph
|
|
Wednesday
Jul 15
|
Areas Of Fog then Sunny
|
97°F |
1 mph
N
|
|
Wednesday Night
Jul 15
|
Partly Cloudy
|
72°F |
0 mph
|
|
Thursday
Jul 16
|
Mostly Sunny then Chance Showers And Thunderstorms
|
94°F |
2 mph
S
|
|
Thursday Night
Jul 16
|
Chance Showers And Thunderstorms then Partly Cloudy
|
70°F |
2 mph
S
|
|
Friday
Jul 17
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
94°F |
0 to 5 mph
SW
|
|
Friday Night
Jul 17
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
71°F |
3 mph
SW
|
|
Saturday
Jul 18
|
Sunny
|
93°F |
2 to 7 mph
W
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
68°F |
0 to 6 mph
N
|
|
Sunday
Jul 19
|
Mostly Sunny
|
91°F |
2 mph
S
|
|
Sunday Night
Jul 19
|
Partly Cloudy then Slight Chance Rain Showers
|
69°F |
3 mph
SW
|
|
Monday
Jul 20
|
Slight Chance Rain Showers
|
90°F |
2 to 8 mph
W
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms
|
66°F |
3 to 8 mph
NW
|
|
Tuesday
Jul 21
|
Slight Chance Rain Showers then Mostly Sunny
|
85°F |
3 to 8 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harpers Ferry.