Williamson County Weather Forecast: Current Conditions & 10-Day Outlook

Current Weather Conditions in Williamson County

Williamson County

Illinois, United States

weather iconMainly clear
27°
Low 22°
High 27°

Hourly Williamson County Weather Forecast

12 AMweather icon25°
1 AMweather icon24°
2 AMweather icon23°
3 AMweather icon22°
4 AMweather icon22°
5 AMweather icon22°
6 AMweather icon22°
7 AMweather icon21°
8 AMweather icon21°
9 AMweather icon20°
10 AMweather icon21°
11 AMweather icon21°
12 PMweather icon22°
1 PMweather icon22°
2 PMweather icon23°
3 PMweather icon24°
4 PMweather icon25°
5 PMweather icon26°
6 PMweather icon26°
7 PMweather icon26°
8 PMweather icon25°
9 PMweather icon25°
10 PMweather icon25°
11 PMweather icon25°

Wind

8kt NW

Gentle wind.

8kt
NESW

Precipitation

37%

Moderate chance of precipitation.

Williamson County 10-Day Weather Outlook

TodayShowers svg
22°
27°
SunShowers svg
21°
27°
MonShowers svg
22°
27°
TueShowers svg
20°
30°
WedShowers svg
21°
31°
ThuShowers svg
19°
28°
FriShowers svg
18°
29°
SatShowers svg
20°
31°
SunShowers svg
23°
33°

Today's Weather in Williamson County, Illinois, United States

Feels like

29°

Feels warmer than actual temperature.

Pressure

998 hPa

Expect unstable weather conditions.

Humidity

73%

High humidity.

UV

8 - High

Take precautions.

Gusts

17kt

Max speed of wind gusts today.

Cloud Cover

35%

Partly cloudy, some clouds expected.

Daylight

14h 45m

Long days, short nights.

Rain

0.8mm

No rain, dry conditions expected.

Snowfall

0.0mm

No snowfall expected.

Historical Climate Data

10 year average

View All

Current Air Quality in Williamson County

Today

Good

In the US, an AQI of 0-50 is considered 'Good'. This means the air quality is satisfactory, and air pollution poses little or no risk to health.

40

AQI

PM2.5

3.6 µg/m³

Fine particles that penetrate deep into the lungs.

PM10

3.7 µg/m³

Larger particles causing respiratory issues.

Ozone

89.0 ppb

Major smog component affecting respiratory health.

Nitrogen Dioxide

2.2 ppb

Irritates lungs and lowers resistance to infections.

Sulfur Dioxide

0.8 ppb

Causes respiratory problems and acid rain.

Carbon Monoxide

179.0 ppm

Affects oxygen delivery in the body.

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