 |
 Current Alton Weather Conditions |
Updated January 13th at 7:50 am |
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| Temperature: | 37°F |
Dew Point: | 28°F |
| Barometer: | 29.89 inHg |
Wind: | N 15 Mph |
| Humidity: | 69.6% |
Visibility: | 0M |
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| Alton Weather Forecast Summary |
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Today
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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Saturday
Jan 17th
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Cloudy |
Cloudy |
Cloudy |
Cloudy |
Cloudy |
58°F
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44°F
24°F |
32°F
20°F |
43°F
28°F |
23°F
12°F |
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| Alton Detailed Weather Forecast |
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| Tuesday, January 13th, 2026 |
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Morning |
Temperature: 53°F |
| Cloudy. Windy. |
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Afternoon |
Temperature: 52°F |
| Cloudy. |
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Evening |
Temperature: 49°F |
| Cloudy with a chance of showers. Windy at times. |
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| Wednesday, January 14th, 2026 |
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Overnight |
Temperature: 44°F |
| Cloudy. Windy. |
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Morning |
Temperature: 34°F |
| Sunny. Windy. |
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Afternoon |
Temperature: 28°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 25°F |
| Clear. Windy at times. |
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| Thursday, January 15th, 2026 |
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Overnight |
Temperature: 21°F |
| Clear. Windy at times. |
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Morning |
Temperature: 27°F |
| Cloudy. |
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Afternoon |
Temperature: 26°F |
| A mix of cloud and sun. |
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Evening |
Temperature: 29°F |
| Cloudy with a slight chance of flurries or showers. Windy at times. |
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| Friday, January 16th, 2026 |
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Overnight |
Temperature: 35°F |
| Cloudy with a chance of flurries or showers. Risk of freezing rain. Windy at times. |
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Morning |
Temperature: 39°F |
| A mix of cloud and sun. Windy. |
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Afternoon |
Temperature: 38°F |
| A mix of sun and cloud. Windy at times. |
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Evening |
Temperature: 33°F |
| Cloudy. Windy. |
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| Saturday, January 17th, 2026 |
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Overnight |
Temperature: 22°F |
| Cloudy with clear periods. Windy. |
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Morning |
Temperature: 20°F |
| Cloudy. Windy. |
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Afternoon |
Temperature: 16°F |
| Sunny with cloudy periods. Windy. |
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Evening |
Temperature: 13°F |
| Mostly clear. Windy. |
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| Sunday, January 18th, 2026 |
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Overnight |
Temperature: 10°F |
| Clear. Windy at times. |
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Morning |
Temperature: 19°F |
| A mix of cloud and sun. Windy at times. |
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Afternoon |
Temperature: 23°F |
| Sunny. |
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Evening |
Temperature: 23°F |
| Clear. Windy at times. |
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| Monday, January 19th, 2026 |
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Overnight |
Temperature: 25°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 42°F |
| Sunny with cloudy periods. Windy. |
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Afternoon |
Temperature: 35°F |
| Sunny. Windy. |
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Evening |
Temperature: 24°F |
| A mix of cloudy and clear skies. Windy. |
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| Tuesday, January 20th, 2026 |
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Overnight |
Temperature: 19°F |
| Clear. Windy at times. |
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Morning |
Temperature: 23°F |
| Cloudy. Windy at times. |
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Afternoon |
Temperature: 24°F |
| Cloudy. |
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Evening |
Temperature: 25°F |
| Cloudy with a chance of flurries. Windy at times. |
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| Wednesday, January 21st, 2026 |
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Overnight |
Temperature: 26°F |
| Cloudy with flurries likely. Windy at times. |
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Morning |
Temperature: 34°F |
| Cloudy. Windy at times. |
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Afternoon |
Temperature: 33°F |
| Sunny. |
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Evening |
Temperature: 32°F |
| Clear with cloudy periods. |
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