Weather forecast for 10 daysPontoon Beach, IL

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 8mphSSE 160°
  • Humidity: 51%
  • UV index: 5
  • Sunrise: 7:12 am CDT
  • Sunset: 6:17 pm CDT
  • ▼
On Sunday, October 18, a sun-drenched sky is also anticipated.
A substantial temperature range, peaking at an enjoyable 66.2°F and bottoming out at a cold 39.2°F, is expected.
Tomorrow, the maximum temperature is expected to be in line with the typical October high of 66.2°F.
Sunrise will be at 7:12 am and sunset at 6:17 pm; tomorrow's daylight will last for 11h and 5min.

10-day overview

Daily temperatures

Warmest day: Sunday 25.10. 82°C.
Coldest day: tomorrow 66°C.

Chance of precipitation

Highest chance: Monday - Tuesday 6%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 37°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphESE 118°
  • Humidity: 72%
  • UV index: 0
  • Sunrise: 7:11 am CDT
  • Sunset: 6:19 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 8mphSSE 160°
  • Humidity: 51%
  • UV index: 5
  • Sunrise: 7:12 am CDT
  • Sunset: 6:17 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 72°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphSSE 157°
  • Humidity: 53%
  • UV index: 5
  • Sunrise: 7:13 am CDT
  • Sunset: 6:16 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 73°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 3mphESE 108°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:14 am CDT
  • Sunset: 6:15 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphSSE 168°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:13 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 77°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphNE 46°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:16 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 77°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphESE 115°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 81°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphSE 139°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:19 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 82°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 6mphS 190°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:20 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 79°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphSSE 157°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:21 am CDT
  • Sunset: 6:07 pm CDT
  • ▼
It is expected that a combination of clear and cloud-filled weather is expected.
Rainfall is not forecasted in Pontoon Beach in the upcoming days.
Noticeable swings in temperature are expected in the coming days. The temperature is expected to swing from 66.2°F up to 82.4°F, while the lowest night temperatures will vary also significantly, as the overnight lows will vary from 37.4°F to 51.8°F.
With the highest temperature of 82.4°F, next Sunday will be the warmest day; Sunday will be the coldest day, with the highest temperature of 66.2°F.
Updated: Oct 17, 2026 @ 22:02:55 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Pontoon Beach, the forecast calls for abundant sunshine.

Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 39.2°F.
The maximum temperature tomorrow will be in line with the average highest temperature in October. The lowest temperature will be noticeably lower than the average low of 49.3°F.

On Sunday, in Pontoon Beach, sunrise will be at 7:12 am and sunset at 6:17 pm (CDT).

In Pontoon Beach, the length of the day tomorrow will be 11h and 5min.