Weather forecast for todayAlton, IL

Weather forecast for today

Current condition 10:41 pm CDT

  • 50°F
  • Feels like:
    48°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 4mphE 90°
  • Humidity: 70%
  • Dewpoint: 41°F
  • Pressure: 30.37"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Currently, in Alton, a vast expanse of clear blue stretches overhead.
The temperature is a crisp 50°F, with the feels-like temperature closely matching at 48.2°F. The current temperature is still relatively far from minimum-forecasted 39.2°F.

Sunday Oct 18, 2026

  • min.
  • 39°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphSE 139°
  • Humidity: 81%
  • UV index: 0
  • Sunrise: 7:13 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
For the remainder of Sunday, expect nothing but clear skies from morning to night.
The lowest temperature will be a cold 39.2°F.
Sunrise was at 7:13 am and sunset at 6:18 pm; the daylight lasted for 11h and 5min.

Hourly overview

Hourly temperatures

Warmest hour: 11 pm 50°C.
Coldest hour: 7 am 39°C.

Chance of precipitation

Highest chance: 7 am 7%.

Hourly weather forecast

  • 11 pm
  • 50°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSE 140°
  • Humidity: 73%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 12 am
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSSE 147°
  • Humidity: 77%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 1 am
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSSE 150°
  • Humidity: 79%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSSE 147°
  • Humidity: 87%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 3 am
  • 43°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphSE 138°
  • Humidity: 91%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 43°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphESE 116°
  • Humidity: 90%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 5 am
  • 41°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 1mphESE 115°
  • Humidity: 91%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 41°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 1mphSE 132°
  • Humidity: 90%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 7 am
  • 39°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 2mphESE 117°
  • Humidity: 90%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 am
  • 43°F
  • Feels like:
    43°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 2mphESE 123°
  • Humidity: 89%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Updated: Oct 19, 2026 @ 03:41:06 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (10:41 pm CDT) is 50°F.

On Sunday, cloudless and clear weather is anticipated.

On Sunday, in Alton, sunrise was at 7:13 am and sunset at 6:18 pm (CDT).

Today in Alton, the length of the day was 11h and 5min.