Hourly Weather Forecast - Piasa, IL

12 AM
40°F
10%
9mph
S
Clear
Humidity
76%
Feels like
35°F
Dew Point
34°F
1 AM
40°F
10%
9mph
S
Clear
Humidity
80%
Feels like
35°F
Dew Point
35°F
2 AM
40°F
10%
9mph
S
Clear
Humidity
84%
Feels like
35°F
Dew Point
36°F
3 AM
40°F
10%
8mph
S
Clear
Humidity
87%
Feels like
35°F
Dew Point
37°F
4 AM
40°F
0%
8mph
S
Clear
Humidity
90%
Feels like
35°F
Dew Point
38°F
5 AM
41°F
10%
8mph
S
Hazy
Humidity
93%
Feels like
35°F
Dew Point
39°F
6 AM
41°F
10%
8mph
S
Hazy
Humidity
94%
Feels like
36°F
Dew Point
40°F
7 AM
42°F
20%
9mph
S
Hazy
Humidity
94%
Feels like
37°F
Dew Point
41°F
7:17 AM
8 AM
44°F
20%
9mph
S
Partly Cloudy
Humidity
93%
Feels like
39°F
Dew Point
42°F
9 AM
46°F
20%
9mph
S
Partly Cloudy
Humidity
91%
Feels like
42°F
Dew Point
43°F
10 AM
49°F
10%
9mph
SSW
Partly Cloudy
Humidity
87%
Feels like
45°F
Dew Point
45°F
11 AM
52°F
10%
9mph
SSW
Partly Cloudy
Humidity
82%
Feels like
52°F
Dew Point
47°F
12 PM
54°F
10%
10mph
SW
Mostly Sunny
Humidity
78%
Feels like
54°F
Dew Point
48°F
1 PM
56°F
10%
9mph
SW
Mostly Sunny
Humidity
75%
Feels like
56°F
Dew Point
49°F
2 PM
57°F
10%
9mph
SSW
Partly Cloudy
Humidity
73%
Feels like
57°F
Dew Point
49°F
3 PM
58°F
10%
8mph
SSW
Partly Cloudy
Humidity
73%
Feels like
58°F
Dew Point
49°F
4 PM
57°F
10%
7mph
SSW
Partly Cloudy
Humidity
76%
Feels like
57°F
Dew Point
49°F
4:42 PM
5 PM
55°F
10%
6mph
SSW
Mostly Clear
Humidity
81%
Feels like
55°F
Dew Point
49°F
6 PM
53°F
10%
6mph
SSW
Mostly Clear
Humidity
86%
Feels like
53°F
Dew Point
49°F
7 PM
52°F
10%
6mph
S
Mostly Clear
Humidity
89%
Feels like
52°F
Dew Point
49°F
8 PM
52°F
10%
7mph
S
Partly Cloudy
Humidity
92%
Feels like
52°F
Dew Point
49°F
9 PM
51°F
10%
7mph
S
Partly Cloudy
Humidity
93%
Feels like
51°F
Dew Point
49°F
10 PM
51°F
20%
7mph
S
Partly Cloudy
Humidity
93%
Feels like
51°F
Dew Point
49°F
11 PM
50°F
20%
7mph
S
Partly Cloudy
Humidity
93%
Feels like
50°F
Dew Point
48°F

Forecast Peak Wind Gusts Today

High Winds, Rain, and Snow Cross the Country

A clipper moving over the Great Lakes brings rain, snow, and high winds through the Atlantic Coastline.

Rainfall and Snowfall Totals Through Friday

Atmospheric River Symptoms Repeat in the Northwest

Thursday's Weather Outlook

Today's Weather Outlook

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

How to Measure Snow via NWS

How To Measure Snow

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