Weather forecast for 10 daysPeru, IL

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 57°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphSW 221°
  • Humidity: 39%
  • UV index: 3
  • Sunrise: 7:10 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
Today, on Saturday, October 17, conditions will remain bright with clear skies.
Temperature span will be from a high of a moderate 57.2°F to a low of a cold 37.4°F.
The predicted high for today is predicted to be moderately lower than the typical October maximum of 61.7°F.
Sunrise was at 7:10 am and sunset will be at 6:12 pm; the daylight will last for 11h and 2min.

Sunday Oct 18, 2026

  • 64°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 12mphSSW 198°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:11 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
Tomorrow, on Sunday, expect consistent sunshine and open skies.
Temperature values will vary noticeably, extending from an enjoyable 64.4°F to a cold 35.6°F.
Tomorrow's peak is anticipated to reflect the usual October high temperature of 61.7°F.
Sunrise will be at 7:11 am and sunset at 6:11 pm; tomorrow's daylight will last for 10h and 59min.

10-day overview

Daily temperatures

Warmest period: Saturday - Sunday 75°C.
Coldest day: today 57°C.

Chance of precipitation

Highest chance: Monday 26.10. 16%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 57°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphSW 221°
  • Humidity: 39%
  • UV index: 3
  • Sunrise: 7:10 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 12mphSSW 198°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:11 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 3mphS 171°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:13 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 3mphESE 112°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:14 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 73°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 2mphS 174°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 73°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphE 83°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:16 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 73°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphESE 121°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:03 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 75°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphSE 144°
  • Humidity: 56%
  • UV index: 3
  • Sunrise: 7:18 am CDT
  • Sunset: 6:02 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 75°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphSSW 198°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:19 am CDT
  • Sunset: 6:01 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 72°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 5mphENE 60°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:21 am CDT
  • Sunset: 5:59 pm CDT
  • ▼
Ten-day trends indicate that a combination of sun-filled and overcast weather is forecasted.
Rain is not expected in Peru in the upcoming days.
Temperature fluctuation will be noticeable in the coming days. The maximum temperature will vary between 57.2°F and 75.2°F, while the variation in nighttime lows will be also notably wide, as nighttime lows are forecast to fall between 35.6°F and 48.2°F.
With a maximum temperature of 75.2°F, next Saturday and Sunday will be the warmest days; today is the coldest day, with a maximum temperature of 57.2°F.
Updated: Oct 17, 2026 @ 19:33:00 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, sunny skies are in store, with excellent visibility.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 35.6°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. Tomorrow, the lowest temperature will be uncommonly lower than the average low of 45.7°F.

On Sunday, in Peru, sunrise will be at 7:11 am and sunset at 6:11 pm (CDT).

In Peru, tomorrow, there will be 10h and 59min of daylight.