 |
 Alton Weather Forecast Summary |
|
|
| |
Today
Jan 16th
|
Saturday
Jan 17th
|
Sunday
Jan 18th
|
Monday
Jan 19th
|
Tuesday
Jan 20th
|
 |
|
|
 |
|
Cloudy |
Cloudy |
Cloudy |
Mostly Sunny |
Cloudy |
32°F
|
10°F
5°F |
27°F
6°F |
15°F
3°F |
20°F
7°F |
|
| |
|
| Alton Detailed Weather Forecast |
|
|
| |
| Friday, January 16th, 2026 |
 |
Overnight |
Temperature: 31°F |
| Cloudy with clear periods. Windy. |
|
|
|
|
Morning |
Temperature: 26°F |
| Cloudy. Windy. |
|
|
|
 |
Afternoon |
Temperature: 17°F |
| Mostly cloudy. Windy. |
|
|
|
 |
Evening |
Temperature: 11°F |
| Cloudy. Windy. |
|
|
|
| Saturday, January 17th, 2026 |
|
Overnight |
Temperature: 7°F |
| Cloudy. Windy. |
|
|
|
|
Morning |
Temperature: 8°F |
| Cloudy. Windy. |
|
|
|
 |
Afternoon |
Temperature: 8°F |
| A mix of cloud and sun. Windy at times. |
|
|
|
|
Evening |
Temperature: 7°F |
| Cloudy. |
|
|
|
| Sunday, January 18th, 2026 |
|
Overnight |
Temperature: 8°F |
| Cloudy. Windy at times. |
|
|
|
|
Morning |
Temperature: 20°F |
| Cloudy. Windy. |
|
|
|
|
Afternoon |
Temperature: 18°F |
| Mostly sunny. Wind 20 to 30 mph. |
|
|
|
 |
Evening |
Temperature: 8°F |
| Clear. Windy. |
|
|
|
| Monday, January 19th, 2026 |
 |
Overnight |
Temperature: 3°F |
| Clear with cloudy periods. Windy at times. |
|
|
|
|
Morning |
Temperature: 9°F |
| Sunny with cloudy periods. Windy at times. |
|
|
|
|
Afternoon |
Temperature: 14°F |
| A mix of cloud and sun. Windy at times. |
|
|
|
|
Evening |
Temperature: 10°F |
| Clear. |
|
|
|
| Tuesday, January 20th, 2026 |
|
Overnight |
Temperature: 8°F |
| Clear. Windy at times. |
|
|
|
|
Morning |
Temperature: 14°F |
| Cloudy. |
|
|
|
|
Afternoon |
Temperature: 18°F |
| Cloudy. |
|
|
|
|
Evening |
Temperature: 19°F |
| Cloudy. Windy at times. |
|
|
|
| Wednesday, January 21st, 2026 |
|
Overnight |
Temperature: 17°F |
| Cloudy. Windy at times. |
|
|
|
|
Morning |
Temperature: 22°F |
| Cloudy. Windy at times. |
|
|
|
|
Afternoon |
Temperature: 20°F |
| A mix of cloud and sun. |
|
|
|
|
Evening |
Temperature: 16°F |
| Clear. |
|
|
|
| Thursday, January 22nd, 2026 |
|
Overnight |
Temperature: 16°F |
| Clear. Windy at times. |
|
|
|
|
Morning |
Temperature: 31°F |
| Cloudy. Windy. |
|
|
|
|
Afternoon |
Temperature: 34°F |
| A mix of cloud and sun. Windy at times. |
|
|
|
|
Evening |
Temperature: 31°F |
| Cloudy. Windy at times. |
|
|
|
| Friday, January 23rd, 2026 |
|
Overnight |
Temperature: 27°F |
| Cloudy. Windy at times. |
|
|
|
|
Morning |
Temperature: 22°F |
| Cloudy. Windy. |
|
|
|
|
Afternoon |
Temperature: 18°F |
| Cloudy. Windy at times. |
|
|
|
 |
Evening |
Temperature: 15°F |
| Cloudy with a chance of flurries. Windy at times. |
|
|
|
