Weather forecast for 10 daysDecatur, IN

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 64°F
  • 34°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 9mphSSW 194°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 7:54 am EDT
  • Sunset: 6:55 pm EDT
  • ▼
Tomorrow, on Sunday, sunshine and minimal clouds are in the outlook.
Dramatic temperature shifts from a high of a breezy 64.4°F to a low of a cold 33.8°F are predicted.
The highest temperature is predicted to follow the average for October, around 61.7°F.
Sunrise will be at 7:54 am and sunset at 6:55 pm; tomorrow's daylight will last for 11h and 1min.

10-day overview

Daily temperatures

Warmest period: Sunday - Monday 72°C.
Coldest day: tomorrow 64°C.

Chance of precipitation

Highest chance: Wednesday 9%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 32°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphS 189°
  • Humidity: 94%
  • UV index: 0
  • Sunrise: 7:53 am EDT
  • Sunset: 6:56 pm EDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 34°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 9mphSSW 194°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 7:54 am EDT
  • Sunset: 6:55 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 2mphSE 143°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:55 am EDT
  • Sunset: 6:53 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 5mphNE 53°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 7:56 am EDT
  • Sunset: 6:52 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 4mphNE 51°
  • Humidity: 68%
  • UV index: 4
  • Sunrise: 7:57 am EDT
  • Sunset: 6:50 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 70°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 5mphNNE 23°
  • Humidity: 64%
  • UV index: 4
  • Sunrise: 7:59 am EDT
  • Sunset: 6:49 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 70°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 7mphENE 75°
  • Humidity: 68%
  • UV index: 4
  • Sunrise: 8:00 am EDT
  • Sunset: 6:47 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 70°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 6mphE 101°
  • Humidity: 65%
  • UV index: 4
  • Sunrise: 8:01 am EDT
  • Sunset: 6:46 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 72°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphS 184°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 8:02 am EDT
  • Sunset: 6:45 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 72°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphNW 309°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 8:03 am EDT
  • Sunset: 6:43 pm EDT
  • ▼
Looking ahead to the next ten days, primarily mostly clear and occasionally gloomy weather is anticipated.
Rain is not expected in Decatur in the upcoming period.
In the coming days, the maximum temperature will range between 64.4°F and 71.6°F, while the nightly low temperatures will show a considerable swing, as the lowest temperatures will be recorded between 32°F and 44.6°F.
The warmest days will be next Sunday and Monday, with a maximum of 71.6°F; the lowest daytime temperature of the period will be reached on Sunday, peaking at 64.4°F.
Updated: Oct 18, 2026 @ 03:34:25 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Decatur, the forecast calls for abundant sunshine.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 33.8°F.
Tomorrow, the highest temperature will be in line with the average maximum temperature in October. The lowest temperature will be uncommonly lower than the average low of 45.9°F.

On Sunday, in Decatur, sunrise will be at 7:54 am and sunset at 6:55 pm (EDT).

In Decatur, tomorrow, there will be 11h and 1min of daylight.