 |
 Current Alton Weather Conditions |
Updated January 12th at 3:55 am |
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| Temperature: | 27°F |
Dew Point: | 19°F |
| Barometer: | 30.36 inHg |
Wind: | N 15 Mph |
| Humidity: | 73.6% |
Visibility: | 0M |
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| Alton Weather Forecast Summary |
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Today
Jan 12th
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Tuesday
Jan 13th
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Wednesday
Jan 14th
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Thursday
Jan 15th
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Friday
Jan 16th
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Sunny |
Cloudy |
Cloudy |
Cloudy |
Cloudy |
48°F
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54°F
38°F |
45°F
21°F |
28°F
19°F |
39°F
27°F |
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| Alton Detailed Weather Forecast |
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| Monday, January 12th, 2026 |
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Morning |
Temperature: 42°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 42°F |
| Sunny. |
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Evening |
Temperature: 39°F |
| Clear. |
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| Tuesday, January 13th, 2026 |
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Overnight |
Temperature: 39°F |
| Cloudy. Windy at times. |
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Morning |
Temperature: 49°F |
| Cloudy. Windy at times. |
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Afternoon |
Temperature: 48°F |
| Cloudy. |
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Evening |
Temperature: 48°F |
| Cloudy. Windy at times. |
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| Wednesday, January 14th, 2026 |
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Overnight |
Temperature: 45°F |
| Cloudy. Windy at times. |
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Morning |
Temperature: 34°F |
| Cloudy. Windy. |
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Afternoon |
Temperature: 25°F |
| Sunny. Windy. |
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Evening |
Temperature: 22°F |
| Clear. Windy. |
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| Thursday, January 15th, 2026 |
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Overnight |
Temperature: 19°F |
| Clear. Windy at times. |
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Morning |
Temperature: 24°F |
| Cloudy. Windy at times. |
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Afternoon |
Temperature: 24°F |
| Cloudy. |
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Evening |
Temperature: 26°F |
| Cloudy. |
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| Friday, January 16th, 2026 |
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Overnight |
Temperature: 28°F |
| Cloudy. |
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Morning |
Temperature: 35°F |
| Cloudy. Windy at times. |
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Afternoon |
Temperature: 33°F |
| A mix of cloud and sun. Windy at times. |
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Evening |
Temperature: 31°F |
| Cloudy. Windy at times. |
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| Saturday, January 17th, 2026 |
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Overnight |
Temperature: 20°F |
| Cloudy with a chance of flurries. Windy. |
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Morning |
Temperature: 16°F |
| Cloudy. Windy. |
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Afternoon |
Temperature: 12°F |
| Sunny with cloudy periods. Windy. |
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Evening |
Temperature: 9°F |
| Clear. Windy at times. |
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| Sunday, January 18th, 2026 |
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Overnight |
Temperature: 9°F |
| Clear with cloudy periods. Windy at times. |
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Morning |
Temperature: 20°F |
| Cloudy. |
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Afternoon |
Temperature: 23°F |
| Sunny. |
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Evening |
Temperature: 24°F |
| Clear. Windy at times. |
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| Monday, January 19th, 2026 |
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Overnight |
Temperature: 28°F |
| Clear. Windy at times. |
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Morning |
Temperature: 42°F |
| Sunny. Windy. |
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Afternoon |
Temperature: 33°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 29°F |
| Mostly clear. |
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| Tuesday, January 20th, 2026 |
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Overnight |
Temperature: 29°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 41°F |
| A mix of cloud and sun. Windy at times. |
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Afternoon |
Temperature: 35°F |
| A mix of cloud and sun. |
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Evening |
Temperature: 29°F |
| A mix of clear and cloudy skies. |
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