Weather forecast for tomorrowSumner, IA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 64°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 18mphSSW 197°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:25 am CDT
  • Sunset: 6:21 pm CDT
  • ▼
On Sunday, October 18, expect consistent sunshine and open skies.
Temperature is anticipated to swing from a high of a comfortable 64.4°F to a low of a wintry 41°F.
The predicted high for tomorrow is predicted to be a couple of degrees higher than the typical October maximum of 57.7°F.
Sunrise will be at 7:25 am and sunset at 6:21 pm; tomorrow's daylight will last for 10h and 56min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 63°C.
Coldest hour: 6 am 41°C.

Chance of precipitation

Highest chance: 6 am 4%.

Hourly weather forecast

  • 12 am
  • 45°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 13mphSSW 198°
  • Humidity: 75%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 43°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 12mphSSW 198°
  • Humidity: 79%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 41°F
  • Feels like:
    34°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 12mphSSW 200°
  • Humidity: 84%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 41°F
  • Feels like:
    34°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 13mphSSW 196°
  • Humidity: 86%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:25 am
  • 8 am
  • 41°F
  • Feels like:
    34°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 14mphSSW 194°
  • Humidity: 86%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 50°F
  • Feels like:
    45°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 17mphSSW 198°
  • Humidity: 67%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 18mphSSW 201°
  • Humidity: 51%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 63°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphSSW 197°
  • Humidity: 47%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphSSW 194°
  • Humidity: 43%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 61°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphS 190°
  • Humidity: 47%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:21 pm
  • 8 pm
  • 54°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 11mphS 185°
  • Humidity: 64%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 50°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphS 191°
  • Humidity: 74%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, bright and mostly sunny weather is expected.
The temperature will be between a minimum of 41°F and a maximum of 64.4°F. The feels-like temperature will be between a minimum of 33.8°F and a maximum of 60.8°F. The warmest part of the day will be around 4 pm.
Tomorrow, the temperature is expected to be relatively higher than October's normal maximum of 57.7°F. The lowest temperature tomorrow will be also comparable to October's average minimum.
Updated: Oct 17, 2026 @ 18:22:53 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, sunny skies and pleasant visibility are expected.

Tomorrow, the maximum temperature will be 64.4°F, while the minimum temperature will be 41°F.
The maximum temperature tomorrow will be moderately higher than the average highest temperature in October. The lowest temperature will be in line with the average low of 42.4°F.

On Sunday, in Sumner, sunrise will be at 7:25 am and sunset at 6:21 pm (CDT).

In Sumner, tomorrow, there will be 10h and 56min of daylight.