Alton, IL

Right Now
15°
Clear
  • Humidity: 83%
  • Feels Like:
  • Heat Index: 15°
  • Wind: 4 mph
  • Wind Chill:
  • UV Index: 2 Low
  • Sunrise: 07:14:28 AM
  • Sunset: 05:10:46 PM
  • Dew Point: 10°
  • Visibility: 10 mi

Today

Partly cloudy skies. High around 40F. Winds WSW at 10 to 15 mph.

Tonight

Partly cloudy skies early will give way to cloudy skies late. Low 27F. Winds SW at 10 to 15 mph.

Tomorrow

Cloudy skies early will become partly cloudy later in the day. Morning high of 37F with temps falling to near 25. Winds NW at 10 to 20 mph.

Next 12 Hours

Time
Temp
Precip
6 AM
16°
1%
6 AM
16°

Wind: SSW @ 4 mph

Precip: 1% Chance

Humidity: 79%

Wind Chill:

Heat Index: 16°

UV Index: 0 Low

Visibility: 9 mi

7 AM
17°
1%
7 AM
17°

Wind: SSW @ 6 mph

Precip: 1% Chance

Humidity: 75%

Wind Chill:

Heat Index: 17°

UV Index: 0 Low

Visibility: 10 mi

8 AM
19°
1%
8 AM
19°

Wind: SW @ 6 mph

Precip: 1% Chance

Humidity: 69%

Wind Chill: 10°

Heat Index: 19°

UV Index: 0 Low

Visibility: 10 mi

9 AM
23°
0%
9 AM
23°

Wind: SW @ 8 mph

Precip: 0% Chance

Humidity: 56%

Wind Chill: 14°

Heat Index: 23°

UV Index: 0 Low

Visibility: 10 mi

10 AM
27°
0%
10 AM
27°

Wind: WSW @ 10 mph

Precip: 0% Chance

Humidity: 48%

Wind Chill: 17°

Heat Index: 27°

UV Index: 1 Low

Visibility: 10 mi

11 AM
31°
0%
11 AM
31°

Wind: WSW @ 11 mph

Precip: 0% Chance

Humidity: 46%

Wind Chill: 21°

Heat Index: 31°

UV Index: 2 Low

Visibility: 10 mi

12 PM
34°
0%
12 PM
34°

Wind: WSW @ 11 mph

Precip: 0% Chance

Humidity: 46%

Wind Chill: 25°

Heat Index: 34°

UV Index: 2 Low

Visibility: 10 mi

1 PM
36°
0%
1 PM
36°

Wind: W @ 11 mph

Precip: 0% Chance

Humidity: 45%

Wind Chill: 29°

Heat Index: 36°

UV Index: 2 Low

Visibility: 10 mi

2 PM
38°
0%
2 PM
38°

Wind: W @ 12 mph

Precip: 0% Chance

Humidity: 46%

Wind Chill: 31°

Heat Index: 38°

UV Index: 2 Low

Visibility: 10 mi

3 PM
39°
0%
3 PM
39°

Wind: W @ 12 mph

Precip: 0% Chance

Humidity: 48%

Wind Chill: 32°

Heat Index: 39°

UV Index: 1 Low

Visibility: 10 mi

4 PM
37°
0%
4 PM
37°

Wind: W @ 10 mph

Precip: 0% Chance

Humidity: 52%

Wind Chill: 30°

Heat Index: 37°

UV Index: 0 Low

Visibility: 10 mi

5 PM
34°
2%
5 PM
34°

Wind: W @ 7 mph

Precip: 2% Chance

Humidity: 60%

Wind Chill: 28°

Heat Index: 34°

UV Index: 0 Low

Visibility: 10 mi