Weather forecast for tomorrowSumner, IL

Weather forecast for tomorrow

Sunday Oct 25, 2026

  • 77°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 4mphSSE 149°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:11 am CDT
  • Sunset: 5:59 pm CDT
  • ▼
Tomorrow, on Sunday, blue skies and warm sunshine will define the conditions.
A high of a moderately hot 77°F during the day contrasts markedly with a low of a chilly 48.2°F at night.
Temperatures are higher than average, more in line with September's norm of 78.3°F than with October's 66°F.
Sunrise will be at 7:11 am and sunset at 5:59 pm; tomorrow's daylight will last for 10h and 49min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 77°C.
Coldest hour: 6 am 45°C.

Chance of precipitation

Highest chance: 6 am 7%.

Hourly weather forecast

  • 12 am
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphESE 104°
  • Humidity: 87%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphESE 109°
  • Humidity: 93%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 2mphESE 116°
  • Humidity: 98%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 1mphESE 113°
  • Humidity: 99%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:11 am
  • 8 am
  • 48°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 1mphESE 122°
  • Humidity: 94%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSSE 151°
  • Humidity: 63%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSSE 162°
  • Humidity: 42%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 75°F
  • Feels like:
    75°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphS 170°
  • Humidity: 35%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 75°F
  • Feels like:
    75°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphSSE 155°
  • Humidity: 34%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
Sunset: 5:59 pm
  • 6 pm
  • 70°F
  • Feels like:
    70°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSE 136°
  • Humidity: 46%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 61°F
  • Feels like:
    61°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphESE 122°
  • Humidity: 69%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 57°F
  • Feels like:
    57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphSE 137°
  • Humidity: 79%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of cloudy and mostly clear weather is forecasted.
The temperature will be between the lowest temperature of 44.6°F and the highest temperature of 77°F. The warmest part of the day is expected around 3 pm.
Tomorrow, the peak temperature is expected to align more with September than with October's typical high. The minimum temperature will be resembling October's average low of 49.3°F.
Updated: Oct 24, 2026 @ 07:57:03 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, predominantly sunny weather will make for pleasant outdoor conditions.

Tomorrow, the maximum temperature will be 77°F, while the minimum temperature will be 48.2°F.
The maximum temperature tomorrow will be significantly higher than the average highest temperature of 66°F in October. The lowest temperature will be in line with the average low of 49.3°F.

On Sunday, in Sumner, sunrise will be at 7:11 am and sunset at 5:59 pm (CDT).

In Sumner, Illinois, tomorrow, there will be 10h and 49min of daylight.