Hourly Weather Forecast - Illiopolis, IL

12 AM
40°F
10%
6mph
E
Cloudy
Humidity
95%
Feels like
36°F
Dew Point
39°F
1 AM
40°F
10%
6mph
E
Cloudy
Humidity
95%
Feels like
36°F
Dew Point
39°F
2 AM
40°F
10%
6mph
E
Cloudy
Humidity
95%
Feels like
36°F
Dew Point
39°F
3 AM
41°F
10%
7mph
ESE
Cloudy
Humidity
95%
Feels like
36°F
Dew Point
40°F
4 AM
41°F
10%
7mph
ESE
Cloudy
Humidity
96%
Feels like
36°F
Dew Point
40°F
5 AM
41°F
10%
8mph
ESE
Cloudy
Humidity
96%
Feels like
36°F
Dew Point
40°F
6 AM
42°F
30%
8mph
ESE
30% Chance of Light Rain
Humidity
96%
Feels like
37°F
Dew Point
41°F
7 AM
43°F
30%
9mph
ESE
30% Chance of Light Rain
Humidity
97%
Feels like
38°F
Dew Point
42°F
7:16 AM
8 AM
44°F
10%
9mph
SE
Cloudy
Humidity
97%
Feels like
39°F
Dew Point
43°F
9 AM
45°F
10%
10mph
SE
Cloudy
Humidity
97%
Feels like
40°F
Dew Point
45°F
10 AM
47°F
10%
10mph
SE
Cloudy
Humidity
96%
Feels like
43°F
Dew Point
46°F
11 AM
49°F
10%
10mph
SSE
Cloudy
Humidity
95%
Feels like
45°F
Dew Point
48°F
12 PM
51°F
10%
11mph
SSE
Cloudy
Humidity
93%
Feels like
51°F
Dew Point
49°F
1 PM
53°F
10%
11mph
SSE
Cloudy
Humidity
92%
Feels like
53°F
Dew Point
50°F
2 PM
54°F
10%
11mph
SSE
Cloudy
Humidity
91%
Feels like
54°F
Dew Point
51°F
3 PM
55°F
10%
11mph
S
Cloudy
Humidity
91%
Feels like
55°F
Dew Point
52°F
4 PM
55°F
10%
10mph
S
Mostly Cloudy
Humidity
92%
Feels like
55°F
Dew Point
53°F
4:37 PM
5 PM
55°F
10%
9mph
S
Mostly Cloudy
Humidity
94%
Feels like
55°F
Dew Point
53°F
6 PM
55°F
10%
9mph
S
Partly Cloudy
Humidity
95%
Feels like
55°F
Dew Point
54°F
7 PM
56°F
10%
9mph
S
Partly Cloudy
Humidity
96%
Feels like
56°F
Dew Point
55°F
8 PM
56°F
10%
10mph
S
Partly Cloudy
Humidity
96%
Feels like
56°F
Dew Point
55°F
9 PM
56°F
20%
10mph
S
Mostly Cloudy
Humidity
96%
Feels like
56°F
Dew Point
55°F
10 PM
57°F
30%
10mph
SSW
30% Chance Rain Showers
Humidity
96%
Feels like
57°F
Dew Point
56°F
11 PM
57°F
30%
10mph
SSW
30% Chance Rain Showers
Humidity
95%
Feels like
57°F
Dew Point
56°F

Forecast Wind Gusts For Today

Storm Pummels Eastern U.S.

A strong disturbance will sweep across the eastern U.S. today bringing various impacts including rain and thunderstorms, snow and even strong wind gusts.

Rain And Snow Totals Through Tonight

Atmospheric River Impacts Pacific Northwest

NOAA, NCDC

White Christmas? What Are The Odds

Weekend Weather Outlook

Weekend Weather Outlook

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide