Weather forecast for 10 daysAlgonquin, IL

Weather forecast for the weekend

Saturday Oct 17, 2026

  • min.
  • 37°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 9mphSSW 211°
  • Humidity: 63%
  • UV index: 0
  • Sunrise: 7:08 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
For the remainder of Saturday, a cloudless sky and clear weather are expected.
The lowest forecasted temperature is a wintry 37.4°F.
Sunrise was at 7:08 am and sunset will be at 6:08 pm; the daylight will last for 11h and 0min.

Sunday Oct 18, 2026

  • 63°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphSSW 206°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:09 am CDT
  • Sunset: 6:06 pm CDT
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Tomorrow, skies are expected to be clear and full of sunshine.
The temperature variation is forecasted to range from a maximum of a comfortable 62.6°F to a minimum of a cold 37.4°F.
The expected maximum is forecasted to be in line with the regular October temperature of 59.5°F.
Sunrise will be at 7:09 am and sunset at 6:06 pm; tomorrow's daylight will last for 10h and 58min.

10-day overview

Daily temperatures

Maximum temperature: 72°C.
Coldest day: tomorrow 63°C.

Chance of precipitation

Highest chance: Monday 26.10. 22%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 37°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 9mphSSW 211°
  • Humidity: 63%
  • UV index: 0
  • Sunrise: 7:08 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 63°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphSSW 206°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:09 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphSSW 199°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:10 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 68°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 5mphESE 108°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:11 am CDT
  • Sunset: 6:03 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphSSW 193°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 7:13 am CDT
  • Sunset: 6:02 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 72°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 5mphENE 73°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 7:14 am CDT
  • Sunset: 6:00 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 7mphSE 128°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 7:15 am CDT
  • Sunset: 5:59 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 70°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 8mphSSE 150°
  • Humidity: 61%
  • UV index: 3
  • Sunrise: 7:16 am CDT
  • Sunset: 5:57 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 72°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphSSW 197°
  • Humidity: 57%
  • UV index: 3
  • Sunrise: 7:17 am CDT
  • Sunset: 5:56 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 68°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 6mphNE 52°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 7:19 am CDT
  • Sunset: 5:55 pm CDT
  • ▼
During the upcoming ten-day period, a combination of dull and dry and sunny weather is expected.
Rainfall is not forecasted in Algonquin in the upcoming days.
In the upcoming period, the highest temperature will range between 62.6°F and 71.6°F, while nighttime temperatures are expected to vary from 37.4°F to 48.2°F.
The warmest days will be Thursday, Friday and next Sunday, with a maximum of 71.6°F; with the highest temperature of 62.6°F, Sunday will be the coldest day.
Updated: Oct 17, 2026 @ 20:46:59 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, expect consistent sunshine and open skies.

Tomorrow, the highest temperature will be 62.6°F, while the lowest temperature will be 37.4°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature will be a couple of degrees lower than the average low of 44.2°F.

On Sunday, in Algonquin, sunrise will be at 7:09 am and sunset at 6:06 pm (CDT).

In Algonquin, the length of the day tomorrow will be 10h and 58min.