Weather forecast for 10 daysQuincy, IL

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 59°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSW 203°
  • Humidity: 37%
  • UV index: 4
  • Sunrise: 7:18 am CDT
  • Sunset: 6:23 pm CDT
  • ▼
On Saturday, October 17, uninterrupted sunshine is anticipated.
Temperature is expected to swing from a high of a refreshing 59°F to a low of a wintry 41°F.
The highest temperature for today is forecasted to be relatively lower than the average October temperature of 63.5°F.
Sunrise was at 7:18 am and sunset will be at 6:23 pm; the daylight will last for 11h and 5min.

Sunday Oct 18, 2026

  • 68°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphS 182°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:19 am CDT
  • Sunset: 6:21 pm CDT
  • ▼
Tomorrow, on Sunday, conditions will remain bright with clear skies.
The daytime temperature will peak at a delightful 68°F, significantly contrasting with the night's low of an icy 41°F.
Tomorrow's peak is predicted to be relatively higher than the regular high for October at 63.5°F.
Sunrise will be at 7:19 am and sunset at 6:21 pm; tomorrow's daylight will last for 11h and 2min.

10-day overview

Daily temperatures

Warmest period: Friday - Sunday 79°C.
Coldest day: today 59°C.

Chance of precipitation

Highest chance: Wednesday 15%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 59°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSW 203°
  • Humidity: 37%
  • UV index: 4
  • Sunrise: 7:18 am CDT
  • Sunset: 6:23 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 68°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphS 182°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:19 am CDT
  • Sunset: 6:21 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphSSE 167°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:20 am CDT
  • Sunset: 6:20 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 73°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphSSE 152°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:21 am CDT
  • Sunset: 6:19 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 4mphS 186°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:22 am CDT
  • Sunset: 6:17 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 77°F
  • 48°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphS 170°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:23 am CDT
  • Sunset: 6:16 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 79°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphSE 144°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:24 am CDT
  • Sunset: 6:14 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 79°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 7mphSSE 162°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:25 am CDT
  • Sunset: 6:13 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 79°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 6mphSSW 209°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:27 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 75°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 5mphSW 231°
  • Humidity: 61%
  • UV index: 3
  • Sunrise: 7:28 am CDT
  • Sunset: 6:10 pm CDT
  • ▼
Forecasts for the ten-day outlook show that a combination of cloudy and bright weather is predicted.
Rainfall is not anticipated in Quincy in the upcoming days.
Expect a substantial fluctuation in daytime highs across the forecast period. The temperature is expected to swing from 59°F up to 78.8°F, while the difference in minimum temperatures will be also substantial, as nighttime lows are forecast to fall between 41°F and 55.4°F.
With a maximum temperature of 78.8°F, Friday through next Sunday will be the warmest days in Quincy; today is the coldest day, with a maximum temperature of 59°F.
Updated: Oct 17, 2026 @ 18:59:25 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, sunshine is forecasted under mostly clear skies.

Today, the highest temperature will be 59°F, while the lowest temperature will be 41°F.
Today, the highest temperature will be moderately lower than the average maximum temperature in October. The lowest temperature today will be also relatively lower than the average low temperature.

On Saturday, in Quincy, sunrise was at 7:18 am and sunset will be at 6:23 pm (CDT).

In Quincy, today, there will be 11h and 5min of daylight.

Tomorrow, sunny skies and pleasant visibility are expected.

Tomorrow, the highest temperature will be 68°F, while the lowest temperature will be 41°F.
The highest temperature tomorrow will be a couple of degrees higher than the average maximum temperature in October. Tomorrow, the lowest temperature will be also a few degrees lower than the average low temperature.

On Sunday, in Quincy, sunrise will be at 7:19 am and sunset at 6:21 pm (CDT).

Tomorrow, the daylight will last for 11h and 2min.