Hourly Weather Forecast - Piasa, IL

9 AM
28°F
10%
2mph
W
Partly Cloudy
Humidity
70%
Feels like
28°F
Dew Point
19°F
10 AM
29°F
10%
3mph
SW
Mostly Cloudy
Humidity
68%
Feels like
29°F
Dew Point
20°F
11 AM
30°F
10%
4mph
SSW
Mostly Cloudy
Humidity
65%
Feels like
26°F
Dew Point
20°F
12 PM
31°F
10%
4mph
SSW
Cloudy
Humidity
63%
Feels like
27°F
Dew Point
20°F
1 PM
32°F
10%
4mph
S
Cloudy
Humidity
62%
Feels like
28°F
Dew Point
21°F
2 PM
33°F
10%
5mph
SE
Cloudy
Humidity
62%
Feels like
29°F
Dew Point
22°F
3 PM
34°F
20%
6mph
SE
Cloudy
Humidity
63%
Feels like
28°F
Dew Point
22°F
4 PM
33°F
30%
7mph
ESE
30% Chance of Flurries
Humidity
66%
Feels like
27°F
Dew Point
23°F
4:37 PM
5 PM
33°F
40%
8mph
ESE
40% Chance of Flurries
Humidity
71%
Feels like
25°F
Dew Point
24°F
6 PM
32°F
20%
9mph
ESE
Cloudy
Humidity
75%
Feels like
24°F
Dew Point
25°F
7 PM
32°F
20%
9mph
ESE
Cloudy
Humidity
78%
Feels like
24°F
Dew Point
26°F
8 PM
32°F
10%
9mph
ESE
Cloudy
Humidity
81%
Feels like
24°F
Dew Point
27°F
9 PM
33°F
10%
9mph
ESE
Cloudy
Humidity
83%
Feels like
25°F
Dew Point
28°F
10 PM
33°F
10%
9mph
ESE
Mostly Cloudy
Humidity
84%
Feels like
25°F
Dew Point
28°F
11 PM
33°F
10%
9mph
ESE
Mostly Cloudy
Humidity
85%
Feels like
25°F
Dew Point
28°F

Snowfall forecast through Saturday A.M.

More Snow Across the Northern U.S. into the Midwest

The parade of snow will continue across the northern U.S. and Midwest through the end of the week.

Rainfall Forecast for Northwest through Friday A.M.

Rains Finally Easing Across the Northwest

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

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