Weather forecast for tomorrowHarper, IA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 66°F
- 39°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 16mphSSW 192°
- Humidity: 56%
- UV index: 4
- Sunrise: 7:23 am CDT
- Sunset: 6:22 pm CDT
- details ▼
Tomorrow, on Sunday, expect consistent sunshine and open skies.
Temperatures will see a substantial oscillation, reaching a high of a comfortable 66.2°F and dropping to a low of a wintry 39.2°F.
Tomorrow, the maximum temperature is forecasted to be slightly warmer than October's climate norm of 61.3°F.
Sunrise will be at 7:23 am and sunset at 6:22 pm; tomorrow's daylight will last for 10h and 59min.
Temperatures will see a substantial oscillation, reaching a high of a comfortable 66.2°F and dropping to a low of a wintry 39.2°F.
Tomorrow, the maximum temperature is forecasted to be slightly warmer than October's climate norm of 61.3°F.
Sunrise will be at 7:23 am and sunset at 6:22 pm; tomorrow's daylight will last for 10h and 59min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 41°C.
Coldest hour: 6 am 41°C.
Chance of precipitation
Highest chance: 6 am 5%.
Hourly weather forecast
- 12 am
- 45°F
- Feels like:39°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 8mphSSW 193°
- Humidity: 76%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 43°F
- Feels like:37°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 8mphSSW 193°
- Humidity: 79%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphSSW 194°
- Humidity: 84%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 9mphS 191°
- Humidity: 86%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:23 am
- 8 am
- 43°F
- Feels like:37°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 9mphS 187°
- Humidity: 84%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 52°F
- Feels like:46°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 13mphSSW 193°
- Humidity: 63%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 61°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphSSW 197°
- Humidity: 50%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 64°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 15mphSSW 196°
- Humidity: 44%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphS 190°
- Humidity: 42%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 63°F
- Feels like:61°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 10mphS 183°
- Humidity: 46%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:22 pm
- 8 pm
- 54°F
- Feels like:52°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 8mphS 177°
- Humidity: 65%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 50°F
- Feels like:48°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphS 181°
- Humidity: 76%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, bright and mostly sunny weather is expected.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 66.2°F. The warmest part of the day will be at 3 pm and 4 pm.
Tomorrow, the maximum will be moderately higher than the average high for October. Tomorrow, the nighttime low will be also slightly cooler than October's typical minimum of 44.8°F.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 66.2°F. The warmest part of the day will be at 3 pm and 4 pm.
Tomorrow, the maximum will be moderately higher than the average high for October. Tomorrow, the nighttime low will be also slightly cooler than October's typical minimum of 44.8°F.
Updated: Oct 17, 2026 @ 16:49:55 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, in Harper, sunny skies and pleasant visibility are expected.
Tomorrow, the highest temperature in Harper will be 66.2°F, while the lowest temperature will be 39.2°F.
The highest temperature tomorrow will be moderately higher than the average maximum temperature in October. The lowest temperature tomorrow will be also relatively lower than the average low temperature.
The highest temperature tomorrow will be moderately higher than the average maximum temperature in October. The lowest temperature tomorrow will be also relatively lower than the average low temperature.
On Sunday, in Harper, sunrise will be at 7:23 am and sunset at 6:22 pm (CDT).
Tomorrow, the daylight will last for 10h and 59min.
