Weather forecast for 10 daysSeymour, IL

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 64°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 12mphS 184°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:07 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
Tomorrow, on Sunday, October 18, sunshine is also forecasted under mostly clear skies.
Dramatic changes in temperature are predicted, reaching a high of a comfortable 64.4°F and falling to a low of a wintry 35.6°F.
Tomorrow's forecasted high will be in line with October's typical peak of 63.5°F.
Sunrise will be at 7:07 am and sunset at 6:09 pm; tomorrow's daylight will last for 11h and 2min.

10-day overview

Daily temperatures

Warmest period: Friday - Sunday 77°C.
Coldest day: tomorrow 64°C.

Chance of precipitation

Highest chance: Friday 6%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 36°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphSSE 161°
  • Humidity: 76%
  • UV index: 0
  • Sunrise: 7:06 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 12mphS 184°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:07 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphSSE 160°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:08 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 5mphE 88°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:09 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphS 169°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:10 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphE 87°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:12 am CDT
  • Sunset: 6:04 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 77°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphESE 117°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:13 am CDT
  • Sunset: 6:02 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 77°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphSE 142°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:14 am CDT
  • Sunset: 6:01 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 77°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphSSW 195°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:00 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 75°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphSE 145°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:16 am CDT
  • Sunset: 5:58 pm CDT
  • ▼
It is expected that a combination of dry and sunny and dull weather is expected.
Rainfall is not predicted in Seymour in the upcoming period.
Temperature variation will be noticeable in the next ten days. Forecast highs will fluctuate between 64.4°F and 77°F, while the variation in nighttime lows will be also notably wide, as the overnight lows will vary from 35.6°F to 48.2°F.
With a maximum temperature of 77°F, Friday through next Sunday will be the warmest days; Sunday will be the coldest day, with the highest temperature of 64.4°F.
Updated: Oct 18, 2026 @ 01:21:59 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, sunshine is forecasted under mostly clear skies.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 35.6°F.
The highest temperature will be in line with the average maximum of 63.5°F in October. The lowest temperature tomorrow will be uncommonly lower than the average low of 47.3°F.

On Sunday, in Seymour, sunrise will be at 7:07 am and sunset at 6:09 pm (CDT).

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