Alton, IL

Right Now
43°
Clear
  • Humidity: 68%
  • Feels Like: 39°
  • Heat Index: 43°
  • Wind: 7 mph
  • Wind Chill: 39°
  • UV Index: 0 Low
  • Sunrise: 06:30:49 AM
  • Sunset: 05:54:50 PM
  • Dew Point: 33°
  • Visibility: 10 mi

Today

A clear sky. Low around 35F. Winds SSW at 5 to 10 mph.

Tonight

A clear sky. Low around 35F. Winds SSW at 5 to 10 mph.

Tomorrow

Sunny. High 61F. Winds WNW at 10 to 15 mph.

Next 12 Hours

Time
Temp
Precip
11 PM
41°
2%
11 PM
41°

Wind: S @ 6mph

Precip: 2% Chance

Humidity: 72%

Wind Chill: 37°

Heat Index: 41°

UV Index: 0 Low

Visibility: 10 mi

12 AM
40°
2%
12 AM
40°

Wind: S @ 5mph

Precip: 2% Chance

Humidity: 73%

Wind Chill: 37°

Heat Index: 40°

UV Index: 0 Low

Visibility: 10 mi

1 AM
39°
2%
1 AM
39°

Wind: SSW @ 5mph

Precip: 2% Chance

Humidity: 76%

Wind Chill: 36°

Heat Index: 39°

UV Index: 0 Low

Visibility: 9 mi

2 AM
37°
2%
2 AM
37°

Wind: SSW @ 4mph

Precip: 2% Chance

Humidity: 83%

Wind Chill: 33°

Heat Index: 37°

UV Index: 0 Low

Visibility: 9 mi

3 AM
37°
2%
3 AM
37°

Wind: SSW @ 5mph

Precip: 2% Chance

Humidity: 83%

Wind Chill: 33°

Heat Index: 37°

UV Index: 0 Low

Visibility: 9 mi

4 AM
37°
2%
4 AM
37°

Wind: SW @ 5mph

Precip: 2% Chance

Humidity: 80%

Wind Chill: 33°

Heat Index: 37°

UV Index: 0 Low

Visibility: 10 mi

5 AM
37°
3%
5 AM
37°

Wind: SW @ 4mph

Precip: 3% Chance

Humidity: 79%

Wind Chill: 34°

Heat Index: 37°

UV Index: 0 Low

Visibility: 10 mi

6 AM
37°
5%
6 AM
37°

Wind: SW @ 5mph

Precip: 5% Chance

Humidity: 80%

Wind Chill: 33°

Heat Index: 37°

UV Index: 0 Low

Visibility: 10 mi

7 AM
37°
4%
7 AM
37°

Wind: WSW @ 6mph

Precip: 4% Chance

Humidity: 75%

Wind Chill: 32°

Heat Index: 37°

UV Index: 0 Low

Visibility: 10 mi

8 AM
41°
2%
8 AM
41°

Wind: WSW @ 7mph

Precip: 2% Chance

Humidity: 67%

Wind Chill: 36°

Heat Index: 41°

UV Index: 0 Low

Visibility: 10 mi

9 AM
45°
1%
9 AM
45°

Wind: W @ 10mph

Precip: 1% Chance

Humidity: 59%

Wind Chill: 40°

Heat Index: 45°

UV Index: 1 Low

Visibility: 10 mi

10 AM
50°
0%
10 AM
50°

Wind: W @ 11mph

Precip: 0% Chance

Humidity: 54%

Wind Chill: 45°

Heat Index: 50°

UV Index: 3 Moderate

Visibility: 10 mi