Harper, IA Weather Forecast
Local 7-day forecast
Partly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Harper, IA in one place.
Partly cloudy. Low around 58, with temperatures rising to around 60 overnight. East wind around 5 mph.
Local Weather Overview
This forecast page for Harper, 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: Jun 27, 2026 2:00 AM CDT.
The active forecast window currently covers Jun 27 to Jul 3, 2026 for Harper, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 27 to Jul 3, 2026
- Latest sync
- Jun 27, 2026 2:00 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Harper
Wednesday looks like the warmest upcoming period in Harper at 96 degrees F.
Overnight is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Sunday at about 15 to 20 mph SE.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 27, 2026 2:00 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly sunny, with a high near 81. East wind 5 to 10 mph, with gusts as high as 20 mph.
A chance of showers and thunderstorms after 9pm. Mostly cloudy. Low around 67, with temperatures rising to around 69 overnight. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 91. Heat index values as high as 103. Southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Mostly clear, with a low around 74.
Sunny, with a high near 93.
Partly cloudy, with a low around 75.
Sunny, with a high near 95.
Mostly clear, with a low around 74.
Sunny, with a high near 96.
Mostly clear, with a low around 74.
Sunny, with a high near 96.
Mostly clear, with a low around 72.
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jun 27
|
Partly Cloudy
|
58°F |
5 mph
E
|
|
Saturday
Jun 27
|
Mostly Sunny
|
81°F |
5 to 10 mph
E
|
|
Saturday Night
Jun 27
|
Chance Showers And Thunderstorms
|
67°F |
10 to 15 mph
SE
|
|
Sunday
Jun 28
|
Chance Showers And Thunderstorms then Mostly Sunny
|
91°F |
15 to 20 mph
SE
|
|
Sunday Night
Jun 28
|
Mostly Clear
|
74°F |
10 to 15 mph
S
|
|
Monday
Jun 29
|
Sunny
|
93°F |
10 to 20 mph
S
|
|
Monday Night
Jun 29
|
Partly Cloudy
|
75°F |
10 to 20 mph
S
|
|
Tuesday
Jun 30
|
Sunny
|
95°F |
10 to 15 mph
S
|
|
Tuesday Night
Jun 30
|
Mostly Clear
|
74°F |
10 to 15 mph
SW
|
|
Wednesday
Jul 1
|
Sunny
|
96°F |
10 to 15 mph
SW
|
|
Wednesday Night
Jul 1
|
Mostly Clear
|
74°F |
10 to 15 mph
S
|
|
Thursday
Jul 2
|
Sunny
|
96°F |
10 mph
S
|
|
Thursday Night
Jul 2
|
Mostly Clear
|
72°F |
5 to 10 mph
S
|
|
Friday
Jul 3
|
Sunny then Chance Showers And Thunderstorms
|
94°F |
5 to 10 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harper.