Weather forecast for todayEureka, IL

Weather forecast for today

Current condition 2:34 pm CDT

  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 5mphSSW 200°
  • Humidity: 42%
  • Dewpoint: 34°F
  • Pressure: 30.49"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
Currently, the sun is shining uninterrupted, making for an excellent day outdoors.
The temperature is a moderate 55.4°F. The current temperature is nearly at the maximum of today's 57.2°F.

Saturday Oct 17, 2026

  • 57°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSW 224°
  • Humidity: 44%
  • UV index: 4
  • Sunrise: 7:10 am CDT
  • Sunset: 6:14 pm CDT
  • ▼
Today, on Saturday, October 17, skies will stay clear and sunny.
The temperature is anticipated to vary between a maximum of a refreshing 57.2°F and a minimum of an icy 37.4°F.
Today, the anticipated maximum will be a few degrees lower than October's regular high of 61.9°F.
Sunrise was at 7:10 am and sunset will be at 6:14 pm; the daylight will last for 11h and 3min.

Hourly overview

Hourly temperatures

Warmest period: 3 pm - 5 pm 55°C.
Coldest period: 11 pm - 12 am 41°C.

Chance of precipitation

Highest chance: 10 pm - 12 am 2%.

Hourly weather forecast

  • 3 pm
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphSW 219°
  • Humidity: 43%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSW 226°
  • Humidity: 42%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphSW 227°
  • Humidity: 42%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 52°F
  • Feels like:
    52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphSW 221°
  • Humidity: 51%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:14 pm
  • 7 pm
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSW 214°
  • Humidity: 59%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSSW 205°
  • Humidity: 64%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 43°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSSW 193°
  • Humidity: 69%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphS 180°
  • Humidity: 73%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphS 179°
  • Humidity: 76%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 12 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 5mphS 178°
  • Humidity: 77%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
For the rest of the day, bright skies and dry conditions are anticipated.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 55.4°F. The warmest part of the day will be from 3 pm to 5 pm.
The high will be a few degrees lower than the normal maximum of 61.9°F for October. The minimum temperature today will be more alike with November's average low of 34.7°F than October's average of 46.4°F.
Updated: Oct 17, 2026 @ 19:34:13 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (2:34 pm CDT) it is 55.4°F in Eureka.

On Saturday, sunny skies are in store, with excellent visibility.

Today, the maximum temperature in Eureka will be 57.2°F, while the minimum temperature will be 37.4°F.
The maximum temperature today will be a couple of degrees lower than the average highest temperature in October. Today, the lowest temperature will be also moderately lower than the average low temperature.

On Saturday, in Eureka, sunrise was at 7:10 am and sunset will be at 6:14 pm (CDT).

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