Alton, IL

Right Now
44°
Cloudy
  • Humidity: 77%
  • Feels Like: 38°
  • Heat Index: 44°
  • Wind: 11 mph
  • Wind Chill: 38°
  • UV Index: 0 Low
  • Sunrise: 07:18:41 AM
  • Sunset: 06:10:30 PM
  • Dew Point: 37°
  • Visibility: 10 mi

Today

Cloudy skies early, then partly cloudy after midnight. Low around 35F. Winds N at 10 to 20 mph.

Tonight

Cloudy skies early, then partly cloudy after midnight. Low around 35F. Winds N at 10 to 20 mph.

Tomorrow

Sunshine and clouds mixed. High 52F. Winds NE at 5 to 10 mph.

Next 12 Hours

Time
Temp
Precip
11 PM
43°
1%
11 PM
43°

Wind: N @ 10mph

Precip: 1% Chance

Humidity: 77%

Wind Chill: 37°

Heat Index: 43°

UV Index: 0 Low

Visibility: 10 mi

12 AM
42°
2%
12 AM
42°

Wind: N @ 9mph

Precip: 2% Chance

Humidity: 79%

Wind Chill: 37°

Heat Index: 42°

UV Index: 0 Low

Visibility: 10 mi

1 AM
41°
2%
1 AM
41°

Wind: N @ 8mph

Precip: 2% Chance

Humidity: 82%

Wind Chill: 35°

Heat Index: 41°

UV Index: 0 Low

Visibility: 10 mi

2 AM
39°
2%
2 AM
39°

Wind: N @ 8mph

Precip: 2% Chance

Humidity: 84%

Wind Chill: 33°

Heat Index: 39°

UV Index: 0 Low

Visibility: 10 mi

3 AM
38°
2%
3 AM
38°

Wind: N @ 7mph

Precip: 2% Chance

Humidity: 86%

Wind Chill: 33°

Heat Index: 38°

UV Index: 0 Low

Visibility: 10 mi

4 AM
37°
2%
4 AM
37°

Wind: N @ 7mph

Precip: 2% Chance

Humidity: 87%

Wind Chill: 32°

Heat Index: 37°

UV Index: 0 Low

Visibility: 9 mi

5 AM
37°
4%
5 AM
37°

Wind: NNE @ 7mph

Precip: 4% Chance

Humidity: 87%

Wind Chill: 31°

Heat Index: 37°

UV Index: 0 Low

Visibility: 9 mi

6 AM
36°
8%
6 AM
36°

Wind: NNE @ 6mph

Precip: 8% Chance

Humidity: 88%

Wind Chill: 31°

Heat Index: 36°

UV Index: 0 Low

Visibility: 9 mi

7 AM
36°
6%
7 AM
36°

Wind: NNE @ 8mph

Precip: 6% Chance

Humidity: 89%

Wind Chill: 30°

Heat Index: 36°

UV Index: 0 Low

Visibility: 8 mi

8 AM
36°
7%
8 AM
36°

Wind: NNE @ 8mph

Precip: 7% Chance

Humidity: 90%

Wind Chill: 29°

Heat Index: 36°

UV Index: 0 Low

Visibility: 9 mi

9 AM
39°
5%
9 AM
39°

Wind: NE @ 9mph

Precip: 5% Chance

Humidity: 86%

Wind Chill: 32°

Heat Index: 39°

UV Index: 1 Low

Visibility: 10 mi

10 AM
41°
2%
10 AM
41°

Wind: NE @ 10mph

Precip: 2% Chance

Humidity: 78%

Wind Chill: 35°

Heat Index: 41°

UV Index: 2 Low

Visibility: 10 mi