Harper, IA Weather Forecast
Local 7-day forecast
Sunny then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Harper, IA in one place.
A slight chance of rain showers between 2pm and 3pm, then a slight chance of showers and thunderstorms. Sunny, with a high near 83. Northwest wind 0 to 5 mph. Chance of precipitation is 20%.
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: Oct 12, 2026 9:58 AM CDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Harper, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 9:58 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Harper
Tuesday looks like the warmest upcoming period in Harper at 83 degrees F.
Friday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Friday at about 15 to 25 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 12, 2026 9:58 AM CDT
- Coverage
- 6 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
Showers and thunderstorms. Mostly cloudy, with a low around 61. North wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Rain showers. Mostly cloudy, with a high near 71. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
A slight chance of rain showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers and thunderstorms likely. Cloudy, with a low around 56. Chance of precipitation is 60%.
Showers and thunderstorms. Mostly cloudy, with a high near 69. Chance of precipitation is 90%.
Rain showers likely before 1am. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Mostly sunny, with a high near 58.
Mostly clear, with a low around 36.
Sunny, with a high near 59.
Clear, with a low around 39.
Sunny, with a high near 66.
Partly cloudy, with a low around 47.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny then Slight Chance Showers And Thunderstorms
|
83°F |
0 to 5 mph
NW
|
|
Tuesday Night
Oct 13
|
Showers And Thunderstorms
|
61°F |
5 to 10 mph
N
|
|
Wednesday
Oct 14
|
Rain Showers
|
71°F |
10 mph
NE
|
|
Wednesday Night
Oct 14
|
Slight Chance Showers And Thunderstorms
|
56°F |
10 mph
E
|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
69°F |
10 mph
NE
|
|
Thursday Night
Oct 15
|
Rain Showers Likely
|
47°F |
10 to 20 mph
NW
|
|
Friday
Oct 16
|
Mostly Sunny
|
58°F |
15 to 25 mph
NW
|
|
Friday Night
Oct 16
|
Mostly Clear
|
36°F |
5 to 15 mph
N
|
|
Saturday
Oct 17
|
Sunny
|
59°F |
0 to 5 mph
W
|
|
Saturday Night
Oct 17
|
Clear
|
39°F |
5 to 10 mph
S
|
|
Sunday
Oct 18
|
Sunny
|
66°F |
10 to 15 mph
S
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
47°F |
5 to 10 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harper.