Weather forecast for 10 daysJacksonville, IL

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphS 179°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:14 am CDT
  • Sunset: 6:17 pm CDT
  • ▼
Tomorrow, skies will stay clear and sunny.
The temperature is expected to vary significantly from a high of an enjoyable 64.4°F to a low of a wintry 37.4°F.
October's typical peak of 64°F is predicted to be mirrored in the day’s high.
Sunrise will be at 7:14 am and sunset at 6:17 pm; tomorrow's daylight will last for 11h and 3min.

10-day overview

Daily temperatures

Warmest day: Sunday 25.10. 81°C.
Coldest day: tomorrow 64°C.

Chance of precipitation

Highest chance: Monday - Friday 5%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 37°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphSSE 166°
  • Humidity: 75%
  • UV index: 0
  • Sunrise: 7:13 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphS 179°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:14 am CDT
  • Sunset: 6:17 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphS 172°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:16 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphSE 129°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:16 am CDT
  • Sunset: 6:14 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphSSW 192°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:13 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 77°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphE 93°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:18 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 77°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphSE 130°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:19 am CDT
  • Sunset: 6:10 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 79°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphSSE 153°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:20 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 81°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 6mphSSW 203°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:22 am CDT
  • Sunset: 6:07 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 77°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphSSE 166°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:23 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
Looking ahead to the next ten days, a combination of bright and dull weather is expected.
Rainfall is not anticipated in Jacksonville in the upcoming period.
Temperature variation will be noticeable across the forecast period. Highs will range from 64.4°F to 80.6°F, while the difference in minimum temperatures will be also substantial, as the overnight lows will vary from 37.4°F to 50°F.
Expect the warmest day on next Sunday, with temperatures peaking at 80.6°F; the lowest daytime temperature of the period will be reached on Sunday, peaking at 64.4°F.
Updated: Oct 17, 2026 @ 23:28:23 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, skies are expected to be clear and full of sunshine.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 37.4°F.
The maximum temperature will be in line with the average highest temperature of 64°F in October. The lowest temperature will be noticeably lower than the average low of 47.5°F.

On Sunday, in Jacksonville, sunrise will be at 7:14 am and sunset at 6:17 pm (CDT).

Tomorrow, the daylight will last for 11h and 3min.