Weather forecast for 10 daysAlton, IN

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 5mphESE 103°
  • Humidity: 57%
  • UV index: 5
  • Sunrise: 7:57 am EDT
  • Sunset: 7:04 pm EDT
  • ▼
Tomorrow, on Sunday, October 18, sunny and dry conditions are also anticipated.
Temperatures will see a substantial oscillation, reaching a high of a breezy 66.2°F and dropping to a low of a wintry 37.4°F.
Forecasts show the temperature expected to reach the usual October high of 66.7°F.
Sunrise will be at 7:57 am and sunset at 7:04 pm; tomorrow's daylight will last for 11h and 7min.

10-day overview

Daily temperatures

Warmest day: Sunday 25.10. 79°C.
Coldest day: tomorrow 66°C.

Chance of precipitation

Highest chance: 7%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 37°F
Clear
Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 2mphENE 69°
  • Humidity: 93%
  • UV index: 0
  • Sunrise: 7:56 am EDT
  • Sunset: 7:05 pm EDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 5mphESE 103°
  • Humidity: 57%
  • UV index: 5
  • Sunrise: 7:57 am EDT
  • Sunset: 7:04 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 72°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 2mphNE 39°
  • Humidity: 56%
  • UV index: 5
  • Sunrise: 7:58 am EDT
  • Sunset: 7:02 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 73°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphNE 54°
  • Humidity: 53%
  • UV index: 5
  • Sunrise: 7:59 am EDT
  • Sunset: 7:01 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 3mphNE 37°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 8:00 am EDT
  • Sunset: 6:59 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 73°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 4mphNE 35°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 8:01 am EDT
  • Sunset: 6:58 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 73°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 5mphENE 66°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 8:02 am EDT
  • Sunset: 6:57 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 77°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 3mphE 98°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 8:03 am EDT
  • Sunset: 6:56 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 79°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 3mphSW 214°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 8:04 am EDT
  • Sunset: 6:54 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 77°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphN 2°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 8:05 am EDT
  • Sunset: 6:53 pm EDT
  • ▼
Throughout the next ten days, primarily sun-filled and occasionally cloud-filled weather is predicted.
Rainfall is not expected in Alton in the upcoming period.
The temperature will vary considerably in the coming days. The maximum temperature will vary between 66.2°F and 78.8°F, while the lowest temperature will be between 37.4°F and 48.2°F.
With the highest temperature of 78.8°F, next Sunday will be the warmest day; the coldest day will be Sunday, with a maximum of 66.2°F.
Updated: Oct 18, 2026 @ 02:05:57 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Alton, expect sunny weather with a crisp, clear sky.

Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 37.4°F.
The maximum temperature tomorrow will be in line with the average highest temperature in October. Tomorrow, the lowest temperature will be noticeably lower than the average low of 48°F.

On Sunday, in Alton, sunrise will be at 7:57 am and sunset at 7:04 pm (EDT).

Tomorrow, the daylight will last for 11h and 7min.