Alton, IL

Right Now
63°
Fog
  • Humidity: 94%
  • Feels Like: 63°
  • Heat Index: 63°
  • Wind: 2 mph
  • Wind Chill: 63°
  • UV Index: 10 Very High
  • Sunrise: 06:01:49 AM
  • Sunset: 08:11:30 PM
  • Dew Point: 61°
  • Visibility: 1.5 mi

Today

Partly cloudy. High 84F. Winds NW at 10 to 15 mph.

Tonight

Mainly clear skies. Low near 60F. Winds NE at 5 to 10 mph.

Tomorrow

Generally sunny despite a few afternoon clouds. High around 80F. Winds NE at 5 to 10 mph.

Next 12 Hours

Time
Temp
Precip
5 AM
62°
4%
5 AM
62°

Wind: WNW @ 2mph

Precip: 4% Chance

Humidity: 94%

Wind Chill: 62°

Heat Index: 62°

UV Index: 0 Low

Visibility: 2.7 mi

6 AM
62°
4%
6 AM
62°

Wind: WNW @ 2mph

Precip: 4% Chance

Humidity: 94%

Wind Chill: 62°

Heat Index: 62°

UV Index: 0 Low

Visibility: 2.6 mi

7 AM
64°
4%
7 AM
64°

Wind: WNW @ 4mph

Precip: 4% Chance

Humidity: 94%

Wind Chill: 64°

Heat Index: 64°

UV Index: 0 Low

Visibility: 3 mi

8 AM
66°
4%
8 AM
66°

Wind: W @ 5mph

Precip: 4% Chance

Humidity: 91%

Wind Chill: 66°

Heat Index: 66°

UV Index: 1 Low

Visibility: 5 mi

9 AM
68°
4%
9 AM
68°

Wind: W @ 6mph

Precip: 4% Chance

Humidity: 90%

Wind Chill: 68°

Heat Index: 68°

UV Index: 2 Low

Visibility: 8 mi

10 AM
72°
5%
10 AM
72°

Wind: WNW @ 7mph

Precip: 5% Chance

Humidity: 85%

Wind Chill: 72°

Heat Index: 72°

UV Index: 5 Moderate

Visibility: 9 mi

11 AM
77°
7%
11 AM
77°

Wind: NW @ 8mph

Precip: 7% Chance

Humidity: 75%

Wind Chill: 77°

Heat Index: 77°

UV Index: 7 High

Visibility: 10 mi

12 PM
80°
9%
12 PM
80°

Wind: NW @ 8mph

Precip: 9% Chance

Humidity: 68%

Wind Chill: 80°

Heat Index: 84°

UV Index: 9 Very High

Visibility: 10 mi

1 PM
81°
8%
1 PM
81°

Wind: NW @ 9mph

Precip: 8% Chance

Humidity: 63%

Wind Chill: 81°

Heat Index: 85°

UV Index: 10 Very High

Visibility: 10 mi

2 PM
82°
6%
2 PM
82°

Wind: NNW @ 10mph

Precip: 6% Chance

Humidity: 59%

Wind Chill: 82°

Heat Index: 86°

UV Index: 9 Very High

Visibility: 10 mi

3 PM
83°
5%
3 PM
83°

Wind: NNW @ 10mph

Precip: 5% Chance

Humidity: 57%

Wind Chill: 83°

Heat Index: 86°

UV Index: 7 High

Visibility: 10 mi

4 PM
83°
5%
4 PM
83°

Wind: N @ 11mph

Precip: 5% Chance

Humidity: 55%

Wind Chill: 83°

Heat Index: 86°

UV Index: 5 Moderate

Visibility: 10 mi