Weather forecast for todayOttawa, IL

Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

Weather forecast for today

Current condition 10:28 pm CDT

  • 45°F
  • Feels like:
    43°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 4mphS 180°
  • Humidity: 74%
  • Dewpoint: 36°F
  • Pressure: 30.46"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
In Ottawa, at the moment, the sky is a flawless clear blue with no cloud formations.
The temperature is a frosty 44.6°F, with the feels-like temperature closely matching at 42.8°F. The current temperature is a few degrees off the lowest forecasted temperature.

Saturday Oct 17, 2026

  • min.
  • 37°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphSSW 192°
  • Humidity: 81%
  • UV index: 0
  • Sunrise: 7:09 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
In Ottawa, for the rest of the night, cloudless and clear weather is anticipated.
The lowest temperature will be a cold 37.4°F.
Sunrise was at 7:09 am and sunset at 6:11 pm; the daylight lasted for 11h and 2min.

Hourly overview

Hourly temperatures

Warmest period: 11 pm - 12 am 43°C.
Coldest period: 5 am - 6 am 37°C.

Chance of precipitation

Highest chance: 6 am - 7 am 5%.

Hourly weather forecast

  • 11 pm
  • 43°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphS 191°
  • Humidity: 77%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 12 am
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphS 191°
  • Humidity: 79%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 1 am
  • 41°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphS 191°
  • Humidity: 80%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 39°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphSSW 192°
  • Humidity: 84%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 3 am
  • 39°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphSSW 192°
  • Humidity: 84%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphS 191°
  • Humidity: 84%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 5 am
  • 37°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphSSW 192°
  • Humidity: 85%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 37°F
  • Feels like:
    34°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphS 190°
  • Humidity: 84%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 7 am
  • 39°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphS 190°
  • Humidity: 84%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 am
  • 41°F
  • Feels like:
    37°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphSSW 195°
  • Humidity: 80%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Updated: Oct 18, 2026 @ 03:28:30 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

At 10:28 pm CDT, the temperature is 44.6°F.

Today, a cloudless sky and clear weather are expected.

On Saturday, in Ottawa, sunrise was at 7:09 am and sunset at 6:11 pm (CDT).

Today in Ottawa, the length of the day was 11h and 2min.
Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

Latest news

Deadly Floods Devastate Istanbul: Three Killed, Thousands Rescued as Torrential Rain Submerges Roads and Homes
Istanbul Floods 2026: Three Dead, Thousands Evacuated as Record Rainfall Hits Turkey
Heavy Rain Floods Istanbul, Closes Schools and Triggers Travel Restrictions Across the City
Istanbul Flooding Closes Schools as Heavy Rain Disrupts Traffic and Forces Emergency Measures
Powerful Typhoon Dujuan Brings Record Rain Threat, Landslide Warnings and Mass Evacuation Orders Near Tokyo
Typhoon Dujuan Japan: Evacuations, Landslide Warnings, Flight Cancellations and Heavy Rain Near Tokyo
Heatwave Threatens to Reignite France’s Mega-Fire Near Bordeaux as Firefighters Battle Dry Winds and Extreme Heat
France Wildfire: Heatwave Near Bordeaux Threatens Mega-Fire as 220,000 Evacuated
Torrential Rain Triggers Deadly Landslides in South Korea and Floods Major Streets Across the Philippines
South Korea and Philippines Flooding: Heavy Rain Kills 1 in Geoje, Floods Manila and Leaves Millions Affected
Massive Wildfires Approach Bordeaux as France and Spain Prepare for Another Heatwave
France and Spain Wildfires Threaten Bordeaux and Madrid as Another Heatwave Approaches

Ottawa, Illinois, USA

  • en: Ottawa, Illinois, USA
  • es: Ottawa, Illinois, EE.UU.
  • hr: Otava, Ilinois, SAD
  • mk: Otava, Ilinois, SAD
  • sr: Otava, Ilinois, SAD
  • zh: 渥太华, 伊利诺伊, 美国
  • Latitude: 41.345589°
  • Longitude: -88.842577°
  • Elevation: 482 ft
  • Current time: 10:56pm CDT
  • Sunrise: 7:09 am CDT
  • Sunset: 6:11 pm CDT
  • Timezone: America/Chicago

Nearby Ottawa, Illinois, USA

Illinois, USA - most visited locations