Weather forecast for 10 daysHartsburg, IL

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphS 183°
  • Humidity: 36%
  • UV index: 4
  • Sunrise: 7:11 am CDT
  • Sunset: 6:13 pm CDT
  • ▼
On Sunday, October 18, skies will stay clear and sunny.
A stark contrast will be observed between the day's peak temperature of a breezy 64.4°F and the night's low of a wintry 37.4°F.
October's usual high of 63.7°F is anticipated to be matched by the day’s maximum temperature.
Sunrise was at 7:11 am and sunset will be at 6:13 pm; the daylight will last for 11h and 2min.

10-day overview

Daily temperatures

Warmest day: Sunday 25.10. 79°C.
Coldest day: today 64°C.

Chance of precipitation

Highest chance: 5%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphS 183°
  • Humidity: 36%
  • UV index: 4
  • Sunrise: 7:11 am CDT
  • Sunset: 6:13 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphSSE 163°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:13 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphESE 111°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:14 am CDT
  • Sunset: 6:10 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 73°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphS 169°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:15 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 77°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphESE 103°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:16 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 75°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphSE 131°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:17 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 77°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 9mphSSE 154°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:18 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 79°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphSSW 200°
  • Humidity: 49%
  • UV index: 3
  • Sunrise: 7:19 am CDT
  • Sunset: 6:03 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 75°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphESE 117°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:20 am CDT
  • Sunset: 6:02 pm CDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 75°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphESE 121°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:21 am CDT
  • Sunset: 6:01 pm CDT
  • ▼
In the days ahead, a combination of bright and cloudy weather is expected.
Rain is not forecasted in Hartsburg in the upcoming period.
Expect a substantial fluctuation in daytime highs in the coming days. The temperature is expected to swing from 64.4°F up to 78.8°F, while the fluctuation in night temperatures will be also significant, as the lowest temperatures will be recorded between 37.4°F and 50°F.
Next Sunday is expected to be the warmest, reaching up to 78.8°F; today is the coldest day, with a maximum temperature of 64.4°F.
Updated: Oct 18, 2026 @ 18:24:54 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, sunny conditions are expected to continue.

Today, the maximum temperature will be 64.4°F, while the minimum temperature will be 37.4°F.
The highest temperature will be in line with the average maximum of 63.7°F in October. The lowest temperature will be notably lower than the average low of 47.3°F.

On Sunday, in Hartsburg, sunrise was at 7:11 am and sunset will be at 6:13 pm (CDT).

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