Hourly Weather Forecast - Ottawa, IL

6 PM
35°F
70%
10mph
S
70% Chance of Light Rain
Humidity
85%
Feels like
28°F
Dew Point
31°F
7 PM
36°F
30%
11mph
S
30% Chance of Light Rain
Humidity
86%
Feels like
28°F
Dew Point
32°F
8 PM
37°F
40%
14mph
SSW
40% Chance of Light Rain
Humidity
87%
Feels like
28°F
Dew Point
34°F
9 PM
38°F
60%
17mph
SSW
60% Chance of Light Rain
Humidity
87%
Feels like
29°F
Dew Point
34°F
10 PM
38°F
40%
18mph
SW
40% Chance of Light Rain
Humidity
85%
Feels like
29°F
Dew Point
34°F
11 PM
39°F
40%
19mph
SW
40% Chance of Light Rain
Humidity
83%
Feels like
29°F
Dew Point
34°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday'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