Weather forecast for 10 daysEureka, IL

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 12mphSSW 193°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:11 am CDT
  • Sunset: 6:12 pm CDT
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Tomorrow, on Sunday, sunny conditions are also expected to continue.
Temperature fluctuations will be substantial, ranging from a peak of a breezy 64.4°F to a low of a cold 37.4°F.
The expected maximum is forecasted to be in line with the regular October temperature of 61.9°F.
Sunrise will be at 7:11 am and sunset at 6:12 pm; tomorrow's daylight will last for 11h and 1min.

10-day overview

Daily temperatures

Warmest day: Sunday 25.10. 77°C.
Coldest day: tomorrow 64°C.

Chance of precipitation

Highest chance: Monday 26.10. 13%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 37°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphS 184°
  • Humidity: 76%
  • UV index: 0
  • Sunrise: 7:10 am CDT
  • Sunset: 6:14 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 12mphSSW 193°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:11 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphS 178°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:12 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphESE 121°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:14 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 73°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphSSW 193°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 73°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphENE 75°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:16 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 75°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphSE 125°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 75°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphSSE 152°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:18 am CDT
  • Sunset: 6:03 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 77°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 6mphSSW 198°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:19 am CDT
  • Sunset: 6:02 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 73°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 6mphSSE 149°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:20 am CDT
  • Sunset: 6:01 pm CDT
  • ▼
During the upcoming ten-day period, a combination of sun-filled and gloomy weather is predicted.
Rainfall is not anticipated in Eureka in the upcoming days.
The temperature will vary considerably in the upcoming days. Maximum temperatures are forecasted between 64.4°F and 77°F, while the low temperature range extends from 37.4°F to 48.2°F.
The warmest day will be next Sunday, with a maximum of 77°F; the lowest daytime temperature of the period will be reached on Sunday, peaking at 64.4°F.
Updated: Oct 18, 2026 @ 00:30:30 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, bright and sunny weather is expected.

Tomorrow, the maximum temperature will be 64.4°F, while the minimum temperature will be 37.4°F.
Tomorrow, the highest temperature will be in line with the average maximum temperature in October. The lowest temperature tomorrow will be a few degrees lower than the average low temperature.

On Sunday, in Eureka, sunrise will be at 7:11 am and sunset at 6:12 pm (CDT).

In Eureka, the length of the day tomorrow will be 11h and 1min.