Weather forecast for 10 daysSullivan, IN

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 64°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphSSE 151°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 8:02 am EDT
  • Sunset: 7:06 pm EDT
  • ▼
Tomorrow, on Sunday, October 18, expect sunny weather with a crisp, clear sky.
Temperatures are set to span a considerable range, with a high of an enjoyable 64.4°F and a low of a wintry 35.6°F.
The highest temperature tomorrow will align with the usual October peak of 65.1°F.
Sunrise will be at 8:02 am and sunset at 7:06 pm; tomorrow's daylight will last for 11h and 4min.

10-day overview

Daily temperatures

Warmest day: Sunday 25.10. 77°C.
Coldest day: tomorrow 64°C.

Chance of precipitation

Highest chance: tomorrow - Monday 5%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 34°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphE 81°
  • Humidity: 68%
  • UV index: 0
  • Sunrise: 8:01 am EDT
  • Sunset: 7:08 pm EDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphSSE 151°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 8:02 am EDT
  • Sunset: 7:06 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphESE 123°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 8:03 am EDT
  • Sunset: 7:05 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 73°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphENE 65°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 8:04 am EDT
  • Sunset: 7:04 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 73°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphNE 55°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 8:05 am EDT
  • Sunset: 7:02 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 73°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphNE 38°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 8:06 am EDT
  • Sunset: 7:01 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 73°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphE 82°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 8:07 am EDT
  • Sunset: 7:00 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 75°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphESE 111°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 8:08 am EDT
  • Sunset: 6:58 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 77°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphSSE 167°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 8:09 am EDT
  • Sunset: 6:57 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 75°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphNE 36°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 8:10 am EDT
  • Sunset: 6:56 pm EDT
  • ▼
Weather models show that a combination of dry and sunny and cloudy weather is predicted.
Rainfall is not forecasted in Sullivan in the upcoming days.
There will be a considerable variation in temperature in the coming days. Forecast highs will fluctuate between 64.4°F and 77°F, while there will be also a marked difference in overnight low temperatures, as the overnight lows will vary from 33.8°F to 46.4°F.
Next Sunday will be the warmest day, with a maximum temperature of 77°F; the lowest daytime temperature of the period will be reached on Sunday, peaking at 64.4°F.
Updated: Oct 17, 2026 @ 19:49:47 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, bright and sunny weather is expected.

Tomorrow, the maximum temperature in Sullivan will be 64.4°F, while the minimum temperature will be 35.6°F.
The maximum temperature will be in line with the average highest temperature of 65.1°F in October. The lowest temperature tomorrow will be noticeably lower than the average low of 48.4°F.

On Sunday, in Sullivan, sunrise will be at 8:02 am and sunset at 7:06 pm (EDT).

In Sullivan, tomorrow, there will be 11h and 4min of daylight.