Weather forecast for todayOttawa, IL

Weather forecast for today

Current condition 6:04 am CDT

  • 41°F
  • Feels like:
    41°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 3mphSE 140°
  • Humidity: 78%
  • Dewpoint: 34°F
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Currently, an expansive clear sky makes for a picture-perfect day.
The temperature is a cold 41°F. The current temperature is almost at the minimum-predicted 37.4°F for today.

Sunday Oct 18, 2026

  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 12mphSSW 197°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:10 am CDT
  • Sunset: 6:10 pm CDT
  • ▼
On Sunday, October 18, conditions remain stable and sunny, with little cloud presence.
A stark contrast will be observed between the day's peak temperature of an enjoyable 66.2°F and the night's low of an icy 37.4°F.
Today, the maximum temperature is anticipated to be relatively higher than the common October peak of 61.7°F.
Sunrise will be at 7:10 am and sunset at 6:10 pm; the daylight will last for 10h and 59min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 64°C.
Coldest hour: 7 am 41°C.

Chance of precipitation

Highest chance: 11 pm 3%.

Hourly weather forecast

  • 7 am
  • 41°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphS 190°
  • Humidity: 78%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:10 am
  • 8 am
  • 43°F
  • Feels like:
    41°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphSSW 196°
  • Humidity: 77%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 am
  • 48°F
  • Feels like:
    45°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSSW 198°
  • Humidity: 64%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 10 am
  • 52°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 10mphSSW 201°
  • Humidity: 55%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 11 am
  • 55°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSSW 202°
  • Humidity: 47%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSSW 203°
  • Humidity: 42%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 1 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSSW 204°
  • Humidity: 38%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 64°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSSW 203°
  • Humidity: 34%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 3 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSSW 200°
  • Humidity: 32%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSSW 197°
  • Humidity: 31%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSW 194°
  • Humidity: 32%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphS 184°
  • Humidity: 38%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:10 pm
  • 7 pm
  • 55°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphS 178°
  • Humidity: 48%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 52°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphS 176°
  • Humidity: 58%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 50°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 5mphS 177°
  • Humidity: 64%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphS 180°
  • Humidity: 69%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 46°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphS 184°
  • Humidity: 73%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, a cloudless sky and mainly sunshiny weather are expected.
The temperature will vary between a minimum of 41°F and a maximum of 64.4°F. The warmest part of the day will be from 2 pm to 4 pm.
The maximum temperature will be relatively higher than October's average high of 61.7°F. The lowest temperature is more comparable to November's average minimum of 33.8°F than the usual minimum of 45.7°F in October.
Updated: Oct 18, 2026 @ 11:04:25 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 6:04 am CDT is 41°F.

On Sunday, skies are expected to be clear and full of sunshine.

Today, the maximum temperature will be 66.2°F, while the minimum temperature will be 37.4°F.
The highest temperature will be a couple of degrees higher than the average maximum of 61.7°F in October. Today, the lowest temperature will be also relatively lower than the average low temperature.

On Sunday, in Ottawa, sunrise will be at 7:10 am and sunset at 6:10 pm (CDT).

In Ottawa, today, there will be 10h and 59min of daylight.