Harper, IA Weather Forecast
Local 7-day forecast
Partly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Harper, IA in one place.
A chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 30%.
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: Apr 21, 2026 11:50 AM CDT.
The active forecast window currently covers Apr 23 to Apr 27, 2026 for Harper, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 23 to Apr 27, 2026
- Latest sync
- Apr 21, 2026 11:50 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Harper
Thursday looks like the warmest upcoming period in Harper at 78 degrees F.
Friday Night is the coolest period ahead with temperatures near 45 degrees F.
The strongest winds are forecast for Thursday at about 15 to 20 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 21, 2026 11:50 AM CDT
- Coverage
- 5 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
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Mostly sunny, with a high near 68. Chance of precipitation is 80%.
A slight chance of rain showers before 7pm. Mostly clear, with a low around 45.
Mostly sunny, with a high near 67.
Partly cloudy, with a low around 46.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 65. Chance of precipitation is 30%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 46. Chance of precipitation is 50%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 23
|
Partly Sunny then Chance Showers And Thunderstorms
|
78°F |
15 to 20 mph
S
|
|
Thursday Night
Apr 23
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
53°F |
10 to 20 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms
|
68°F |
10 to 15 mph
W
|
|
Friday Night
Apr 24
|
Slight Chance Rain Showers then Mostly Clear
|
45°F |
10 to 15 mph
N
|
|
Saturday
Apr 25
|
Mostly Sunny
|
67°F |
10 mph
NE
|
|
Saturday Night
Apr 25
|
Partly Cloudy
|
46°F |
10 mph
NE
|
|
Sunday
Apr 26
|
Mostly Sunny then Chance Showers And Thunderstorms
|
65°F |
10 to 15 mph
E
|
|
Sunday Night
Apr 26
|
Showers And Thunderstorms Likely
|
48°F |
10 mph
E
|
|
Monday
Apr 27
|
Showers And Thunderstorms Likely
|
66°F |
10 to 15 mph
SE
|
|
Monday Night
Apr 27
|
Chance Showers And Thunderstorms
|
46°F |
10 to 15 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harper.