Weather forecast for todayEureka, IL

Weather forecast for today

Current condition 8:15 am CDT

  • 39°F
  • Feels like:
    36°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 7mphS 180°
  • Humidity: 77%
  • Dewpoint: 34°F
  • Pressure: 30.49"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
In Eureka, at the moment, no clouds, just endless sunshine warming the day.
The temperature is an icy 39.2°F, with the feels-like temperature being calculated to be a wintry 35.6°F. The present temperature is at its lowest of the day.

Sunday Oct 18, 2026

  • 64°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 12mphSSW 193°
  • Humidity: 46%
  • UV index: 4
  • Sunrise: 7:11 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
Today, on Sunday, October 18, expect consistent sunshine and open skies.
Temperature fluctuations between an enjoyable 64.4°F and a cold 39.2°F are forecasted.
Today's peak temperature is predicted to align with October's common high of 61.9°F.
Sunrise was at 7:11 am and sunset will be at 6:12 pm; the daylight will last for 11h and 1min.

Hourly overview

Hourly temperatures

Warmest period: 3 pm - 5 pm 63°C.
Coldest hour: 9 am 45°C.

Chance of precipitation

Highest chance: 11 pm 3%.

Hourly weather forecast

  • 9 am
  • 45°F
  • Feels like:
    39°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphSSW 192°
  • Humidity: 67%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 10 am
  • 50°F
  • Feels like:
    45°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 10mphSSW 192°
  • Humidity: 56%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 11 am
  • 54°F
  • Feels like:
    50°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphSSW 196°
  • Humidity: 50%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 12 pm
  • 57°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSSW 195°
  • Humidity: 45%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 1 pm
  • 59°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSSW 197°
  • Humidity: 40%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSSW 195°
  • Humidity: 37%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 3 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSSW 192°
  • Humidity: 34%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSSW 194°
  • Humidity: 33%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphS 189°
  • Humidity: 34%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 59°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphS 180°
  • Humidity: 41%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:12 pm
  • 7 pm
  • 54°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphS 172°
  • Humidity: 50%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 50°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSE 169°
  • Humidity: 58%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 48°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphS 170°
  • Humidity: 64%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 46°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphS 170°
  • Humidity: 69%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 46°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 6mphS 175°
  • Humidity: 73%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Eureka, mostly cloudless and sunny weather is anticipated.
The temperature will vary between a maximum of 62.6°F and a minimum of 44.6°F. The warmest part of the day will be from 3 pm to 5 pm.
The maximum temperature will be comparable to the average high of 61.9°F in October. The lowest temperature is more comparable to November's average minimum of 34.7°F than the usual minimum of 46.4°F in October.
Updated: Oct 18, 2026 @ 13:15:51 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 8:15 am CDT is 39.2°F.

Today, in Eureka, a sun-drenched sky is anticipated.

Today, the highest temperature will be 64.4°F, while the lowest temperature will be 39.2°F.
The maximum temperature today will be in line with the average highest temperature in October. The lowest temperature will be a couple of degrees lower than the average low of 46.4°F.

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

Today, the daylight will last for 11h and 1min.