Weather forecast for todayAlton, MO

Weather forecast for today

Current condition 2:29 am CDT

  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 1mphNNW 340°
  • Humidity: 92%
  • Dewpoint: 45°F
  • Pressure: 30.32"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
At the moment, in Alton, weather conditions are clear, with excellent visibility.
The temperature is a chilly 46.4°F. The current temperature is at the minimum expected for today.

Tuesday Oct 20, 2026

  • 73°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphE 100°
  • Humidity: 50%
  • UV index: 5
  • Sunrise: 7:17 am CDT
  • Sunset: 6:22 pm CDT
  • ▼
On Tuesday, October 20, thin clouds will pass through at times, but overall, it will remain bright.
Temperature changes will be considerable, from a high of a moderately hot 73.4°F to a low of a frosty 46.4°F.
The high temperature will be slightly warmer than the typical October level of 69.1°F.
Sunrise will be at 7:17 am and sunset at 6:22 pm; the daylight will last for 11h and 5min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 73°C.
Coldest hour: 6 am 43°C.

Chance of precipitation

Highest chance: 9 pm - 12 am 15%.

Hourly weather forecast

  • 4 am
  • 45°F
  • Feels like:
    45°F
Mostly Clear
Mostly Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphNE 47°
  • Humidity: 95%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 43°F
  • Feels like:
    43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNNE 25°
  • Humidity: 94%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:17 am
  • 8 am
  • 46°F
  • Feels like:
    46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNNE 20°
  • Humidity: 90%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 59°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphE 80°
  • Humidity: 57%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 68°F
  • Feels like:
    68°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 131°
  • Humidity: 37%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 2 pm
  • 72°F
  • Feels like:
    72°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphSE 133°
  • Humidity: 31%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 72°F
  • Feels like:
    72°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphSE 129°
  • Humidity: 31%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 68°F
  • Feels like:
    68°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphESE 112°
  • Humidity: 40%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:22 pm
  • 8 pm
  • 59°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphENE 71°
  • Humidity: 58%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 54°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 1mphNNE 32°
  • Humidity: 70%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Alton, overcast weather is expected.
The temperature will vary between a maximum of 73.4°F and a minimum of 42.8°F. The warmest part of the day is anticipated around 3 pm.
The maximum temperature will be relatively higher than October's average high of 69.1°F. The lowest temperature is also close to October's typical minimum of 49.8°F.
Updated: Oct 20, 2026 @ 07:29:59 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (2:29 am CDT) it is 46.4°F in Alton.

On Tuesday, thin clouds will pass through at times, but overall, it will remain bright.

Today, the highest temperature will be 73.4°F, while the lowest temperature will be 46.4°F.
The maximum temperature will be a few degrees higher than the average highest temperature of 69.1°F in October. The lowest temperature will be in line with the average low of 49.8°F.

On Tuesday, in Alton, sunrise will be at 7:17 am and sunset at 6:22 pm (CDT).

Today in Alton, the daylight will last for 11h and 5min.