Williamsville Weather Today — Illinois, United States
Current temperature, rain chance, humidity, wind and air quality in Williamsville, plus an hourly and 3-day forecast. Updated through the day.
16:48
Sun, 20 Sep 2026
📍 Illinois, United States
Williamsville??
17
°C
Cloudy
Feels 14°C · 62°F
💧 50% Humidity
💨 ← 11.5 km/h W
👁 10 km Visibility
🌧 0 mm Precip
☁ 68% Cloud
☀️ UV Low
🌿 AQI Good
☀️ UV Index
1.9
Low
🔵 Pressure
1028
hPa · 30.35 in
💨 Wind
11.5
km/h · Gust 14.8 km/h
← W
💧 Humidity
50%
Dew point 6.5°C
👁 Visibility
10
km · 6 miles
🌡 Heat Index
16.8°
Wind chill 16.8°C
🌿 Air Quality
Good
US EPA Index: 1
🌅
Sunrise
07:07 AM
🌇
Sunset
07:29 PM
📅 3-Day Forecast
Sunday
20 Sep 2026
Overcast
17°
/
8°
💧71%
🌧0mm
💨21
☀️UV 3.2
Monday
21 Sep 2026
Overcast
23°
/
14°
💧74%
🌧0.22mm
💨21
☀️UV 3.4
Tuesday
22 Sep 2026
Mist
21°
/
14°
💧84%
🌧0.21mm
💨12
☀️UV 3.2
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