Alton, IL

Right Now
42°
  • Humidity: 71%
  • Feels Like: 40°
  • Heat Index: 42°
  • Wind: 4 mph
  • Wind Chill: 40°
  • UV Index: 0 Low
  • Sunrise: 07:01:11 AM
  • Sunset: 05:29:01 PM
  • Dew Point: 34°
  • Visibility: 10 mi

Today

Partly cloudy skies early will give way to cloudy skies late. Slight chance of a rain shower. Low 33F. Winds light and variable.

Tonight

Partly cloudy skies early will give way to cloudy skies late. Slight chance of a rain shower. Low 33F. Winds light and variable.

Tomorrow

Cloudy with rain developing later in the day. High 47F. Winds E at 10 to 15 mph. Chance of rain 90%. Rainfall around a quarter of an inch.

Next 12 Hours

Time
Temp
Precip
9 PM
42°
15%
9 PM
42°

Wind: NNW @ 4 mph

Precip: 15% Chance

Humidity: 71%

Wind Chill: 40°

Heat Index: 42°

UV Index: 0 Low

Visibility: 10 mi

10 PM
41°
15%
10 PM
41°

Wind: NNW @ 3 mph

Precip: 15% Chance

Humidity: 73%

Wind Chill: 40°

Heat Index: 41°

UV Index: 0 Low

Visibility: 10 mi

11 PM
41°
15%
11 PM
41°

Wind: N @ 2 mph

Precip: 15% Chance

Humidity: 75%

Wind Chill: 41°

Heat Index: 41°

UV Index: 0 Low

Visibility: 10 mi

12 AM
40°
2%
12 AM
40°

Wind: N @ 3 mph

Precip: 2% Chance

Humidity: 76%

Wind Chill: 38°

Heat Index: 40°

UV Index: 0 Low

Visibility: 9 mi

1 AM
39°
2%
1 AM
39°

Wind: NNE @ 3 mph

Precip: 2% Chance

Humidity: 80%

Wind Chill: 36°

Heat Index: 39°

UV Index: 0 Low

Visibility: 9 mi

2 AM
37°
2%
2 AM
37°

Wind: NNE @ 3 mph

Precip: 2% Chance

Humidity: 82%

Wind Chill: 35°

Heat Index: 37°

UV Index: 0 Low

Visibility: 9 mi

3 AM
37°
3%
3 AM
37°

Wind: NE @ 2 mph

Precip: 3% Chance

Humidity: 83%

Wind Chill: 37°

Heat Index: 37°

UV Index: 0 Low

Visibility: 8 mi

4 AM
35°
6%
4 AM
35°

Wind: NE @ 3 mph

Precip: 6% Chance

Humidity: 86%

Wind Chill: 35°

Heat Index: 35°

UV Index: 0 Low

Visibility: 8 mi

5 AM
35°
7%
5 AM
35°

Wind: NE @ 2 mph

Precip: 7% Chance

Humidity: 87%

Wind Chill: 35°

Heat Index: 35°

UV Index: 0 Low

Visibility: 8 mi

6 AM
34°
7%
6 AM
34°

Wind: ENE @ 3 mph

Precip: 7% Chance

Humidity: 87%

Wind Chill: 34°

Heat Index: 34°

UV Index: 0 Low

Visibility: 8 mi

7 AM
34°
6%
7 AM
34°

Wind: ENE @ 4 mph

Precip: 6% Chance

Humidity: 86%

Wind Chill: 30°

Heat Index: 34°

UV Index: 0 Low

Visibility: 8 mi

8 AM
35°
5%
8 AM
35°

Wind: ENE @ 5 mph

Precip: 5% Chance

Humidity: 84%

Wind Chill: 31°

Heat Index: 35°

UV Index: 0 Low

Visibility: 9 mi