Eureka Weather Today — Illinois, United States
Current temperature, rain chance, humidity, wind and air quality in Eureka, plus an hourly and 3-day forecast. Updated through the day.
07:56
Fri, 18 Sep 2026
📍 Illinois, United States
Eureka??
13
°C
Mist
Feels 12°C · 55°F
💧 94% Humidity
💨 ↑ 8.3 km/h NNE
👁 2 km Visibility
🌧 0.02 mm Precip
☁ 67% Cloud
☀️ UV Low
🌿 AQI Good
☀️ UV Index
0
Low
🔵 Pressure
1021
hPa · 30.16 in
💨 Wind
8.3
km/h · Gust 10.1 km/h
↑ NNE
💧 Humidity
94%
Dew point 11.8°C
👁 Visibility
2
km · 1 miles
🌡 Heat Index
12.6°
Wind chill 12°C
🌿 Air Quality
Good
US EPA Index: 1
🌅
Sunrise
07:00 AM
🌇
Sunset
07:21 PM
📅 3-Day Forecast
Friday
18 Sep 2026
Sunny
16°
/
13°
💧91%
🌧0.19mm
💨16
☀️UV 5.7
Saturday
19 Sep 2026
Sunny
15°
/
12°
💧90%
🌧0.06mm
💨17
☀️UV 5.8
Sunday
20 Sep 2026
Patchy rain nearby
15°
/
13°
💧88%
🌧0.78mm
💨20
☀️UV 4.6
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