Weather forecast for todaySouth Jacksonville, IL

Weather forecast for today

Current condition 1:23 pm CDT

  • 54°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 1mphWNW 300°
  • Humidity: 47%
  • Dewpoint: 36°F
  • Pressure: 30.52"Hg
  • Visibility: 9mi
  • UV index: 4
  • ▼
Currently, the air is clear and fresh under a radiant sun.
The temperature is a fresh 53.6°F. The current temperature is almost at the maximum of today's expected 57.2°F.

Saturday Oct 17, 2026

  • 57°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphWSW 241°
  • Humidity: 43%
  • UV index: 4
  • Sunrise: 7:13 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
Today, on Saturday, October 17, sunshine will likely continue with scattered clouds at most.
The temperature is anticipated to vary between a moderate 57.2°F and an icy 37.4°F.
Today, the expected high temperature of 57.2°F better resembles November's average maximum than October's usual.
Sunrise was at 7:13 am and sunset will be at 6:18 pm; the daylight will last for 11h and 5min.

Hourly overview

Hourly temperatures

Warmest period: 3 pm - 4 pm 57°C.
Coldest period: 10 pm - 11 pm 43°C.

Chance of precipitation

Highest chance: 10 pm - 11 pm 1%.

Hourly weather forecast

  • 2 pm
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 0mphWSW 257°
  • Humidity: 44%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 3 pm
  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphWNW 281°
  • Humidity: 42%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphWSW 239°
  • Humidity: 39%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphSW 225°
  • Humidity: 38%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 54°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphSSW 207°
  • Humidity: 50%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:18 pm
  • 7 pm
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphS 180°
  • Humidity: 60%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSSE 160°
  • Humidity: 64%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSSE 162°
  • Humidity: 68%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 43°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSSE 161°
  • Humidity: 73%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphSSE 159°
  • Humidity: 74%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
For the rest of Saturday, mainly sunny weather and a cloudless sky are anticipated.
The temperature will be between the highest temperature of 57.2°F and the lowest temperature of 42.8°F. The warmest part of the day will be at 3 pm and 4 pm.
The maximum temperature will be more similar to November's average high of 50.5°F than October's 64°F. The lowest temperature today is also more alike with November's average minimum of 36°F than the average low in October of 47.5°F.
Updated: Oct 17, 2026 @ 18:23:39 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (1:23 pm CDT) it is 53.6°F in South Jacksonville.

Today, in South Jacksonville, sunshine is expected with little to no cloud cover.

Today, the highest temperature will be 57.2°F, while the lowest temperature will be 37.4°F.
Today, the maximum temperature will be relatively lower than the average highest temperature in October. Today, the lowest temperature will be uncommonly lower than the average low of 47.5°F.

On Saturday, in South Jacksonville, sunrise was at 7:13 am and sunset will be at 6:18 pm (CDT).

In South Jacksonville, Illinois, today, there will be 11h and 5min of daylight.