Weather forecast for 10 daysAlton, MO
Weather forecast for the weekend
Sunday Oct 18, 2026
- 66°F
- 39°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphESE 116°
- Humidity: 59%
- UV index: 5
- Sunrise: 7:15 am CDT
- Sunset: 6:25 pm CDT
- details ▼
Today, on Sunday, October 18, conditions remain stable and sunny, with little cloud presence.
Daytime will experience a high of an enjoyable 66.2°F, significantly differing from the expected night low of a cold 39.2°F.
The highest temperature is predicted to follow the average for October, around 69.1°F.
Sunrise will be at 7:15 am and sunset at 6:25 pm; the daylight will last for 11h and 10min.
Daytime will experience a high of an enjoyable 66.2°F, significantly differing from the expected night low of a cold 39.2°F.
The highest temperature is predicted to follow the average for October, around 69.1°F.
Sunrise will be at 7:15 am and sunset at 6:25 pm; the daylight will last for 11h and 10min.
10-day overview
Daily temperatures
Warmest day: Sunday 25.10. 82°C.
Coldest day: today 66°C.
Coldest day: today 66°C.
Chance of precipitation
Highest chance: Tuesday 27.10. 8%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 66°F
- 39°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphESE 116°
- Humidity: 59%
- UV index: 5
- Sunrise: 7:15 am CDT
- Sunset: 6:25 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 72°F
- 43°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 5mphESE 120°
- Humidity: 55%
- UV index: 5
- Sunrise: 7:16 am CDT
- Sunset: 6:24 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 73°F
- 45°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 4mphE 80°
- Humidity: 50%
- UV index: 4
- Sunrise: 7:17 am CDT
- Sunset: 6:22 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 77°F
- 45°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 3mphNE 38°
- Humidity: 48%
- UV index: 5
- Sunrise: 7:18 am CDT
- Sunset: 6:21 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 46°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphNE 39°
- Humidity: 49%
- UV index: 5
- Sunrise: 7:19 am CDT
- Sunset: 6:20 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 77°F
- 46°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphE 90°
- Humidity: 47%
- UV index: 5
- Sunrise: 7:20 am CDT
- Sunset: 6:19 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 81°F
- 48°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphSE 136°
- Humidity: 46%
- UV index: 5
- Sunrise: 7:21 am CDT
- Sunset: 6:17 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 82°F
- 50°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphSSW 206°
- Humidity: 45%
- UV index: 5
- Sunrise: 7:22 am CDT
- Sunset: 6:16 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 79°F
- 50°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 5mphSSW 209°
- Humidity: 47%
- UV index: 4
- Sunrise: 7:23 am CDT
- Sunset: 6:15 pm CDT
- details ▼
- Tuesday
- Oct 27, 2026
- 79°F
- 54°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 6mphSSE 159°
- Humidity: 49%
- UV index: 4
- Sunrise: 7:24 am CDT
- Sunset: 6:14 pm CDT
- details ▼
Looking ahead to the next ten days, a combination of dry and sunny and cloud-filled weather is predicted.
Rainfall is not forecasted in Alton in the upcoming days.
Expect a substantial fluctuation in daytime highs in the coming days. Forecast highs will fluctuate between 66.2°F and 82.4°F, while the difference in minimum temperatures will be also substantial, as the overnight lows will vary from 39.2°F to 53.6°F.
Next Sunday is expected to be the warmest, reaching up to 82.4°F; today is the coldest day, with a maximum temperature of 66.2°F.
Rainfall is not forecasted in Alton in the upcoming days.
Expect a substantial fluctuation in daytime highs in the coming days. Forecast highs will fluctuate between 66.2°F and 82.4°F, while the difference in minimum temperatures will be also substantial, as the overnight lows will vary from 39.2°F to 53.6°F.
Next Sunday is expected to be the warmest, reaching up to 82.4°F; today is the coldest day, with a maximum temperature of 66.2°F.
Updated: Oct 18, 2026 @ 11:17:54 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
Today, bright and sunny weather is expected.
Today, the maximum temperature will be 66.2°F, while the minimum temperature will be 39.2°F.
The highest temperature will be in line with the average maximum of 69.1°F in October. The lowest temperature today will be notably lower than the average low of 49.8°F.
The highest temperature will be in line with the average maximum of 69.1°F in October. The lowest temperature today will be notably lower than the average low of 49.8°F.
On Sunday, in Alton, sunrise will be at 7:15 am and sunset at 6:25 pm (CDT).
In Alton, today, there will be 11h and 10min of daylight.
