Weather forecast for 10 daysDecatur, IN
Weather forecast for the weekend
Sunday Oct 18, 2026
- 64°F
- 34°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphSSW 194°
- Humidity: 66%
- UV index: 4
- Sunrise: 7:54 am EDT
- Sunset: 6:55 pm EDT
- details ▼
On Sunday, in Decatur, sunny skies are in store, with excellent visibility.
The temperature will peak at a comfortable 64.4°F during the day, dropping to a low of a cold 33.8°F at night.
The expected maximum is anticipated to be in line with the regular October temperature of 61.7°F.
Sunrise will be at 7:54 am and sunset at 6:55 pm; the daylight will last for 11h and 1min.
The temperature will peak at a comfortable 64.4°F during the day, dropping to a low of a cold 33.8°F at night.
The expected maximum is anticipated to be in line with the regular October temperature of 61.7°F.
Sunrise will be at 7:54 am and sunset at 6:55 pm; the daylight will last for 11h and 1min.
10-day overview
Daily temperatures
Warmest period: Sunday - Monday 72°C.
Coldest day: today 64°C.
Coldest day: today 64°C.
Chance of precipitation
Highest chance: Wednesday 20%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 64°F
- 34°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphSSW 194°
- Humidity: 66%
- UV index: 4
- Sunrise: 7:54 am EDT
- Sunset: 6:55 pm EDT
- details ▼
- Monday
- Oct 19, 2026
- 68°F
- 36°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphSE 145°
- Humidity: 57%
- UV index: 4
- Sunrise: 7:55 am EDT
- Sunset: 6:53 pm EDT
- details ▼
- Tuesday
- Oct 20, 2026
- 70°F
- 39°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 6mphNE 52°
- Humidity: 60%
- UV index: 4
- Sunrise: 7:56 am EDT
- Sunset: 6:52 pm EDT
- details ▼
- Wednesday
- Oct 21, 2026
- 70°F
- 39°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 4mphNE 42°
- Humidity: 70%
- UV index: 4
- Sunrise: 7:57 am EDT
- Sunset: 6:50 pm EDT
- details ▼
- Thursday
- Oct 22, 2026
- 70°F
- 39°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 6mphNNE 21°
- Humidity: 66%
- UV index: 4
- Sunrise: 7:59 am EDT
- Sunset: 6:49 pm EDT
- details ▼
- Friday
- Oct 23, 2026
- 70°F
- 37°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 7mphENE 73°
- Humidity: 69%
- UV index: 4
- Sunrise: 8:00 am EDT
- Sunset: 6:47 pm EDT
- details ▼
- Saturday
- Oct 24, 2026
- 70°F
- 37°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 7mphESE 102°
- Humidity: 64%
- UV index: 4
- Sunrise: 8:01 am EDT
- Sunset: 6:46 pm EDT
- details ▼
- Sunday
- Oct 25, 2026
- 72°F
- 45°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 5mphS 187°
- Humidity: 59%
- UV index: 3
- Sunrise: 8:02 am EDT
- Sunset: 6:45 pm EDT
- details ▼
- Monday
- Oct 26, 2026
- 72°F
- 48°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphWSW 254°
- Humidity: 59%
- UV index: 4
- Sunrise: 8:03 am EDT
- Sunset: 6:43 pm EDT
- details ▼
- Tuesday
- Oct 27, 2026
- 68°F
- 46°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 8mphENE 58°
- Humidity: 64%
- UV index: 3
- Sunrise: 8:04 am EDT
- Sunset: 6:42 pm EDT
- details ▼
Weather models show that a combination of mostly clear and cloudy weather is expected.
Rainfall is not predicted in Decatur in the upcoming period.
In the coming days, the maximum temperature will vary between 64.4°F and 71.6°F, while the lowest night temperatures will vary significantly, as nighttime lows are forecast to fall between 33.8°F and 48.2°F.
With a maximum temperature of 71.6°F, next Sunday and Monday will be the warmest days; today is the coldest day, with a maximum temperature of 64.4°F.
Rainfall is not predicted in Decatur in the upcoming period.
In the coming days, the maximum temperature will vary between 64.4°F and 71.6°F, while the lowest night temperatures will vary significantly, as nighttime lows are forecast to fall between 33.8°F and 48.2°F.
With a maximum temperature of 71.6°F, next Sunday and Monday will be the warmest days; today is the coldest day, with a maximum temperature of 64.4°F.
Updated: Oct 18, 2026 @ 07:31:55 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, in Decatur, expect sunny weather with a crisp, clear sky.
Today, the highest temperature will be 64.4°F, while the lowest temperature will be 33.8°F.
The maximum temperature today will be in line with the average highest temperature in October. Today, the lowest temperature will be uncommonly lower than the average low of 45.9°F.
The maximum temperature today will be in line with the average highest temperature in October. Today, 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).
Today, the daylight will last for 11h and 1min.
