Weather forecast for 10 daysEureka, IL
Weather forecast for the weekend
Sunday Oct 18, 2026
- 64°F
- 37°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 12mphSSW 193°
- Humidity: 49%
- UV index: 4
- Sunrise: 7:11 am CDT
- Sunset: 6:12 pm CDT
- details ▼
On Sunday, October 18, uninterrupted sunshine is also anticipated.
Daytime will experience a high of an enjoyable 64.4°F, significantly differing from the expected night low of a cold 37.4°F.
The predicted daily high is projected to match October's typical maximum 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.
Daytime will experience a high of an enjoyable 64.4°F, significantly differing from the expected night low of a cold 37.4°F.
The predicted daily high is projected to match October's typical maximum 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 period: Thursday - Saturday 75°C.
Coldest day: tomorrow 64°C.
Coldest day: tomorrow 64°C.
Chance of precipitation
Highest chance: Friday 6%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 37°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 6mphS 180°
- Humidity: 79%
- UV index: 0
- Sunrise: 7:10 am CDT
- Sunset: 6:14 pm CDT
- details ▼
- Sunday
- Oct 18, 2026
- 64°F
- 37°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 12mphSSW 193°
- Humidity: 49%
- UV index: 4
- Sunrise: 7:11 am CDT
- Sunset: 6:12 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 70°F
- 41°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 4mphS 179°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:12 am CDT
- Sunset: 6:11 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 72°F
- 41°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphESE 118°
- Humidity: 50%
- UV index: 4
- Sunrise: 7:14 am CDT
- Sunset: 6:09 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 73°F
- 45°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 3mphSSW 192°
- Humidity: 51%
- UV index: 4
- Sunrise: 7:15 am CDT
- Sunset: 6:08 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 75°F
- 45°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 4mphSE 124°
- Humidity: 50%
- UV index: 4
- Sunrise: 7:16 am CDT
- Sunset: 6:06 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 75°F
- 48°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 7mphSE 131°
- Humidity: 54%
- UV index: 4
- Sunrise: 7:17 am CDT
- Sunset: 6:05 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 75°F
- 50°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 8mphSSE 155°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:18 am CDT
- Sunset: 6:03 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 73°F
- 48°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 7mphSSW 202°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:19 am CDT
- Sunset: 6:02 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 72°F
- 48°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphSE 130°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:20 am CDT
- Sunset: 6:01 pm CDT
- details ▼
Across the following ten days, a combination of clear and cloud-filled weather is expected.
Rainfall is not anticipated in Eureka in the upcoming period.
In the upcoming period, the highest temperature will vary between 64.4°F and 75.2°F, while the nightly low temperatures will show a considerable swing, as the minimum temperature is expected to range between 37.4°F and 50°F.
The warmest days will be Thursday through next Saturday, with a maximum of 75.2°F; with the highest temperature of 64.4°F, Sunday will be the coldest day.
Rainfall is not anticipated in Eureka in the upcoming period.
In the upcoming period, the highest temperature will vary between 64.4°F and 75.2°F, while the nightly low temperatures will show a considerable swing, as the minimum temperature is expected to range between 37.4°F and 50°F.
The warmest days will be Thursday through next Saturday, with a maximum of 75.2°F; with the highest temperature of 64.4°F, Sunday will be the coldest day.
Updated: Oct 18, 2026 @ 02:02:25 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, sunny skies and pleasant visibility are expected.
Tomorrow, the maximum temperature will be 64.4°F, while the minimum temperature will be 37.4°F.
The highest temperature will be in line with the average maximum of 61.9°F in October. The lowest temperature will be relatively lower than the average low of 46.4°F.
The highest temperature will be in line with the average maximum of 61.9°F in October. The lowest temperature will be relatively lower than the average low of 46.4°F.
On Sunday, in Eureka, sunrise will be at 7:11 am and sunset at 6:12 pm (CDT).
In Eureka, Illinois, tomorrow, there will be 11h and 1min of daylight.
