Hourly Weather Forecast - Ottawa, IL

7 AM
22°F
0%
3mph
WNW
Partly Cloudy
Humidity
81%
Feels like
18°F
Dew Point
18°F
7:11 AM
8 AM
22°F
0%
3mph
WNW
Partly Cloudy
Humidity
82%
Feels like
18°F
Dew Point
18°F
9 AM
23°F
0%
3mph
WNW
Partly Cloudy
Humidity
83%
Feels like
19°F
Dew Point
18°F
10 AM
24°F
0%
3mph
W
Partly Cloudy
Humidity
83%
Feels like
24°F
Dew Point
19°F
11 AM
24°F
0%
3mph
W
Mostly Cloudy
Humidity
81%
Feels like
21°F
Dew Point
20°F
12 PM
25°F
0%
3mph
W
Cloudy
Humidity
80%
Feels like
21°F
Dew Point
20°F
1 PM
26°F
0%
3mph
WSW
Cloudy
Humidity
78%
Feels like
26°F
Dew Point
20°F
2 PM
26°F
0%
2mph
WSW
Cloudy
Humidity
77%
Feels like
26°F
Dew Point
19°F
3 PM
25°F
0%
2mph
SW
Cloudy
Humidity
76%
Feels like
25°F
Dew Point
19°F
4 PM
25°F
10%
1mph
SSE
Cloudy
Humidity
75%
Feels like
25°F
Dew Point
18°F
4:26 PM
5 PM
25°F
10%
2mph
ESE
Cloudy
Humidity
76%
Feels like
25°F
Dew Point
19°F
6 PM
25°F
30%
3mph
ESE
30% Chance of Snow
Humidity
77%
Feels like
25°F
Dew Point
18°F
7 PM
25°F
50%
4mph
ESE
50% Chance of Heavy Snow
Humidity
80%
Feels like
20°F
Dew Point
19°F
8 PM
24°F
50%
4mph
E
50% Chance of Snow
Humidity
83%
Feels like
20°F
Dew Point
20°F
9 PM
24°F
60%
4mph
E
60% Chance of Snow
Humidity
84%
Feels like
19°F
Dew Point
20°F
10 PM
24°F
60%
4mph
E
60% Chance of Heavy Snow
Humidity
84%
Feels like
19°F
Dew Point
20°F
11 PM
24°F
40%
4mph
ENE
40% Chance of Heavy Snow
Humidity
83%
Feels like
19°F
Dew Point
20°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

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide