Weather forecast for 10 daysCastle Junction, IL

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 57°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphSW 215°
  • Humidity: 43%
  • UV index: 4
  • Sunrise: 7:16 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
On Saturday, October 17, conditions remain stable and sunny, with little cloud presence.
The predicted temperature range extends from a high of a mild 57.2°F to a low of an icy 39.2°F.
The expected top temperature is expected to be slightly cooler than the usual October maximum of 61.5°F.
Sunrise was at 7:16 am and sunset will be at 6:18 pm; the daylight will last for 11h and 2min.

Sunday Oct 18, 2026

  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphSSW 195°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:16 pm CDT
  • ▼
Tomorrow, on Sunday, the weather remains calm, bright, and sunny.
Day and night temperatures will sharply contrast, oscillating between a breezy 66.2°F and a cold 39.2°F.
Tomorrow, the expected high will be a couple of degrees higher than the average October maximum of 61.5°F.
Sunrise will be at 7:17 am and sunset at 6:16 pm; tomorrow's daylight will last for 10h and 59min.

10-day overview

Daily temperatures

Warmest period: Thursday - Sunday 75°C.
Coldest day: today 57°C.

Chance of precipitation

Highest chance: Monday 26.10. 9%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 57°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphSW 215°
  • Humidity: 43%
  • UV index: 4
  • Sunrise: 7:16 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphSSW 195°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:16 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphS 175°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:18 am CDT
  • Sunset: 6:15 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 6mphSE 144°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:20 am CDT
  • Sunset: 6:13 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 73°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphS 184°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:21 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 5mphSE 145°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 7:22 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 75°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 8mphSE 136°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:23 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 75°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 9mphSSE 152°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:24 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 75°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 7mphSW 214°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:25 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 72°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 6mphENE 76°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 7:27 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
Forecasts for the ten-day outlook show that a combination of dry and sunny and overcast weather is anticipated.
Rainfall is not forecasted in Castle Junction in the upcoming period.
Temperature variation will be noticeable throughout the forecast window. The temperature is expected to swing from 57.2°F up to 75.2°F, while the lowest nightly temperature differences will be also quite pronounced, as the overnight lows will vary from 39.2°F to 51.8°F.
With a maximum temperature of 75.2°F, Thursday through next Sunday will be the warmest days in Castle Junction; today is the coldest day, with a maximum temperature of 57.2°F.
Updated: Oct 17, 2026 @ 15:56:24 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Castle Junction, sunshine is expected with little to no cloud cover.

Today, the maximum temperature will be 57.2°F, while the minimum temperature will be 39.2°F.
Today, the highest temperature will be moderately lower than the average maximum temperature in October. The lowest temperature today will be also moderately lower than the average low temperature.

On Saturday, in Castle Junction, sunrise was at 7:16 am and sunset will be at 6:18 pm (CDT).

In Castle Junction, today, there will be 11h and 2min of daylight.

Tomorrow, bright and sunny weather is expected.

Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 39.2°F.
The highest temperature tomorrow will be slightly warmer than the average maximum temperature in October. The lowest temperature tomorrow will be also moderately lower than the average low temperature.

On Sunday, in Castle Junction, sunrise will be at 7:17 am and sunset at 6:16 pm (CDT).

In Castle Junction, the length of the day tomorrow will be 10h and 59min.