 |
 Alton Weather Forecast Summary |
|
|
| |
Today
Dec 12th
|
Saturday
Dec 13th
|
Sunday
Dec 14th
|
Monday
Dec 15th
|
Tuesday
Dec 16th
|
 |
 |
 |
|
|
Cloudy |
Flurries |
Mix of Cloud and Sun |
Cloudy |
Cloudy |
20°F
|
8°F
-11°F |
16°F
-19°F |
29°F
15°F |
35°F
17°F |
|
| |
|
| Alton Detailed Weather Forecast |
|
|
| |
| Friday, December 12th, 2025 |
 |
Overnight |
Temperature: 15°F |
| Cloudy. |
|
|
|
|
Morning |
Temperature: 17°F |
| Cloudy. Windy at times. |
|
|
|
|
Afternoon |
Temperature: 10°F |
| Cloudy. Windy at times. |
|
|
|
|
Evening |
Temperature: 7°F |
| Cloudy. |
|
|
|
| Saturday, December 13th, 2025 |
 |
Overnight |
Temperature: 6°F |
| Cloudy with flurries likely. |
|
|
|
|
Morning |
Temperature: 7°F |
| Cloudy with flurries likely. Windy at times. |
|
|
|
 |
Afternoon |
Temperature: -3°F |
| Sunny. |
|
|
|
 |
Evening |
Temperature: -10°F |
| Mostly clear. |
|
|
|
| Sunday, December 14th, 2025 |
 |
Overnight |
Temperature: -18°F |
| A mix of cloudy and clear skies. |
|
|
|
|
Morning |
Temperature: -3°F |
| A mix of cloud and sun. Windy at times. |
|
|
|
|
Afternoon |
Temperature: 8°F |
| Sunny. Windy at times. |
|
|
|
 |
Evening |
Temperature: 15°F |
| Clear. Windy. |
|
|
|
| Monday, December 15th, 2025 |
|
Overnight |
Temperature: 19°F |
| Cloudy. Windy. |
|
|
|
|
Morning |
Temperature: 23°F |
| Sunny. |
|
|
|
|
Afternoon |
Temperature: 19°F |
| Cloudy. |
|
|
|
|
Evening |
Temperature: 16°F |
| A mix of cloudy and clear skies. |
|
|
|
| Tuesday, December 16th, 2025 |
|
Overnight |
Temperature: 19°F |
| Cloudy. |
|
|
|
|
Morning |
Temperature: 33°F |
| Cloudy. Windy at times. |
|
|
|
|
Afternoon |
Temperature: 33°F |
| Cloudy. |
|
|
|
|
Evening |
Temperature: 27°F |
| Cloudy. |
|
|
|
| Wednesday, December 17th, 2025 |
|
Overnight |
Temperature: 28°F |
| Cloudy. |
|
|
|
|
Morning |
Temperature: 35°F |
| Cloudy. |
|
|
|
 |
Afternoon |
Temperature: 38°F |
| Mostly sunny. |
|
|
|
|
Evening |
Temperature: 36°F |
| Clear. Windy at times. |
|
|
|
| Thursday, December 18th, 2025 |
|
Overnight |
Temperature: 25°F |
| Clear. |
|
|
|
 |
Morning |
Temperature: 28°F |
| A mix of sun and cloud. |
|
|
|
|
Afternoon |
Temperature: 25°F |
| Sunny. |
|
|
|
|
Evening |
Temperature: 32°F |
| Cloudy. |
|
|
|
| Friday, December 19th, 2025 |
|
Overnight |
Temperature: 28°F |
| A mix of cloudy and clear skies. Windy at times. |
|
|
|
|
Morning |
Temperature: 27°F |
| Cloudy. Windy at times. |
|
|
|
|
Afternoon |
Temperature: 27°F |
| Cloudy. |
|
|
|
|
Evening |
Temperature: 23°F |
| Cloudy. |
|
|
|
| Saturday, December 20th, 2025 |
|
Overnight |
Temperature: 21°F |
| Cloudy. |
|
|
|
|
Morning |
Temperature: 26°F |
| Cloudy. |
|
|
|
|
Afternoon |
Temperature: 23°F |
| Cloudy. |
|
|
|
|
Evening |
Temperature: 23°F |
| Cloudy. |
|
|
|
