Hourly Weather Forecast - Ottawa, IL

12 AM
21°F
0%
15mph
WNW
Mostly Cloudy
Humidity
58%
Feels like
8°F
Dew Point
9°F
1 AM
20°F
0%
14mph
WNW
Partly Cloudy
Humidity
58%
Feels like
7°F
Dew Point
8°F
2 AM
19°F
0%
13mph
WNW
Partly Cloudy
Humidity
58%
Feels like
7°F
Dew Point
7°F
3 AM
19°F
10%
12mph
WNW
Partly Cloudy
Humidity
57%
Feels like
6°F
Dew Point
6°F
4 AM
18°F
10%
11mph
WNW
Partly Cloudy
Humidity
55%
Feels like
6°F
Dew Point
5°F
5 AM
18°F
10%
10mph
WNW
Partly Cloudy
Humidity
55%
Feels like
6°F
Dew Point
4°F
6 AM
17°F
10%
10mph
WNW
Partly Cloudy
Humidity
53%
Feels like
6°F
Dew Point
3°F
7 AM
18°F
10%
9mph
WNW
Partly Cloudy
Humidity
48%
Feels like
6°F
Dew Point
1°F
7:16 AM
8 AM
18°F
10%
9mph
WNW
Mostly Sunny
Humidity
50%
Feels like
7°F
Dew Point
3°F
9 AM
19°F
10%
8mph
WNW
Sunny
Humidity
52%
Feels like
9°F
Dew Point
4°F
10 AM
21°F
10%
7mph
W
Sunny
Humidity
52%
Feels like
12°F
Dew Point
6°F
11 AM
23°F
10%
6mph
WSW
Sunny
Humidity
52%
Feels like
15°F
Dew Point
8°F
12 PM
24°F
10%
6mph
WSW
Sunny
Humidity
51%
Feels like
17°F
Dew Point
8°F
1 PM
26°F
10%
6mph
SW
Sunny
Humidity
49%
Feels like
18°F
Dew Point
9°F
2 PM
27°F
10%
6mph
SSW
Sunny
Humidity
48%
Feels like
20°F
Dew Point
10°F
3 PM
28°F
10%
6mph
SSW
Sunny
Humidity
48%
Feels like
21°F
Dew Point
11°F
4 PM
28°F
10%
6mph
S
Sunny
Humidity
47%
Feels like
22°F
Dew Point
11°F
4:28 PM
5 PM
28°F
10%
7mph
S
Mostly Clear
Humidity
49%
Feels like
21°F
Dew Point
11°F
6 PM
28°F
10%
7mph
SSE
Mostly Clear
Humidity
50%
Feels like
20°F
Dew Point
11°F
7 PM
28°F
10%
8mph
SSE
Mostly Clear
Humidity
53%
Feels like
19°F
Dew Point
12°F
8 PM
28°F
10%
9mph
SSE
Mostly Clear
Humidity
55%
Feels like
19°F
Dew Point
14°F
9 PM
28°F
10%
9mph
S
Mostly Clear
Humidity
56%
Feels like
19°F
Dew Point
14°F
10 PM
28°F
10%
9mph
S
Partly Cloudy
Humidity
56%
Feels like
20°F
Dew Point
15°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

In the path of a weak low-pressure system that brings snow to the Midwest and Northeast, extreme cold weather and brutally cold wind chill values will bring a bitter cold to much of the Nation.

Snowfall forecast through Sunday evening.

Snow Spreads Across the Ohio Valley into the Mid-Atlantic

Weekend Weather Outlook

Weekend Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

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

Cold Air Damming - Cause And Effects

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide