Weather forecast for 10 daysHerndon, IA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 68°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 17mphSSW 194°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:33 am CDT
  • Sunset: 6:31 pm CDT
  • ▼
On Sunday, October 18, sunny and dry conditions are also anticipated.
Temperature values will vary noticeably, extending from a pleasant 68°F to an icy 41°F.
A high of 68°F is expected, which resembles September's climate average of 74.8°F more than October's 59.9°F.
Sunrise will be at 7:33 am and sunset at 6:31 pm; tomorrow's daylight will last for 10h and 58min.

10-day overview

Daily temperatures

Warmest period: Thursday - Saturday 77°C.
Coldest day: tomorrow 68°C.

Chance of precipitation

Highest chance: Monday 26.10. 24%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 39°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 12mphSSW 194°
  • Humidity: 71%
  • UV index: 0
  • Sunrise: 7:32 am CDT
  • Sunset: 6:33 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 68°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 17mphSSW 194°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:33 am CDT
  • Sunset: 6:31 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 9mphS 174°
  • Humidity: 63%
  • UV index: 4
  • Sunrise: 7:34 am CDT
  • Sunset: 6:29 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 48°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 10mphSSE 159°
  • Humidity: 61%
  • UV index: 4
  • Sunrise: 7:35 am CDT
  • Sunset: 6:28 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 9mphS 191°
  • Humidity: 62%
  • UV index: 4
  • Sunrise: 7:36 am CDT
  • Sunset: 6:26 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 77°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 7mphSSE 162°
  • Humidity: 65%
  • UV index: 4
  • Sunrise: 7:38 am CDT
  • Sunset: 6:25 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 77°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 14mphSSE 154°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:39 am CDT
  • Sunset: 6:24 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 77°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 15mphS 173°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 7:40 am CDT
  • Sunset: 6:22 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 72°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 8mphW 261°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 7:41 am CDT
  • Sunset: 6:21 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 73°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 9mphSE 139°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:42 am CDT
  • Sunset: 6:19 pm CDT
  • ▼
Weather models show that a combination of dull and bright weather is anticipated.
Rainfall is not predicted in Herndon in the upcoming days.
In the upcoming days, the highest temperature will vary between 68°F and 77°F, while the difference in minimum temperatures will be substantial, as the overnight lows will vary from 39.2°F to 55.4°F.
The warmest days will be Thursday through next Saturday, with a maximum of 77°F; Sunday will be the coldest day, with the highest temperature of 68°F.
Updated: Oct 17, 2026 @ 22:50:24 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Herndon, the forecast calls for abundant sunshine.

Tomorrow, the highest temperature will be 68°F, while the lowest temperature will be 41°F.
Tomorrow, the maximum temperature will be slightly warmer than the average highest temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Herndon, sunrise will be at 7:33 am and sunset at 6:31 pm (CDT).

In Herndon, tomorrow, there will be 10h and 58min of daylight.