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 Alton Weather Forecast Summary |
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Today
Feb 15th
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Monday
Feb 16th
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Tuesday
Feb 17th
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Wednesday
Feb 18th
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Thursday
Feb 19th
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Showers |
Mostly Sunny |
Sunny |
Mix of Cloud and Sun |
Cloudy |
18°C
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29°C
15°C |
30°C
19°C |
32°C
21°C |
35°C
24°C |
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| Alton Detailed Weather Forecast |
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| Sunday, February 15th, 2026 |
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Afternoon |
Temperature: 18°C |
| Cloudy with a few showers. Windy at times. |
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Evening |
Temperature: 17°C |
| Clear. Windy at times. |
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| Monday, February 16th, 2026 |
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Overnight |
Temperature: 16°C |
| Clear. Windy at times. |
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Morning |
Temperature: 25°C |
| Sunny. Windy. |
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Afternoon |
Temperature: 28°C |
| Sunny with cloudy periods. Windy at times. |
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Evening |
Temperature: 22°C |
| Clear with cloudy periods. Windy at times. |
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| Tuesday, February 17th, 2026 |
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Overnight |
Temperature: 19°C |
| Clear. Windy at times. |
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Morning |
Temperature: 27°C |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 29°C |
| Sunny. Windy at times. |
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Evening |
Temperature: 24°C |
| Clear. Windy. |
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| Wednesday, February 18th, 2026 |
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Overnight |
Temperature: 21°C |
| Clear. Windy at times. |
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Morning |
Temperature: 29°C |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 31°C |
| Sunny with cloudy periods. |
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Evening |
Temperature: 27°C |
| A mix of cloudy and clear skies. |
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| Thursday, February 19th, 2026 |
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Overnight |
Temperature: 24°C |
| A mix of cloudy and clear skies. Windy at times. |
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Morning |
Temperature: 32°C |
| Cloudy. |
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Afternoon |
Temperature: 33°C |
| Sunny with cloudy periods. Windy at times. |
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Evening |
Temperature: 29°C |
| Cloudy. Windy. |
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| Friday, February 20th, 2026 |
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Overnight |
Temperature: 24°C |
| A mix of cloudy and clear skies. Windy. |
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Morning |
Temperature: 31°C |
| A mix of cloud and sun. Windy at times. |
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Afternoon |
Temperature: 33°C |
| Cloudy. Windy at times. |
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Evening |
Temperature: 26°C |
| Clear with cloudy periods. Windy. |
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| Saturday, February 21st, 2026 |
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Overnight |
Temperature: 22°C |
| Clear. Windy at times. |
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Morning |
Temperature: 30°C |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 31°C |
| Sunny. |
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Evening |
Temperature: 27°C |
| Clear. Windy at times. |
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| Sunday, February 22nd, 2026 |
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Overnight |
Temperature: 23°C |
| Clear with cloudy periods. Windy at times. |
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Morning |
Temperature: 30°C |
| Sunny with cloudy periods. Windy at times. |
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Afternoon |
Temperature: 32°C |
| Sunny. |
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Evening |
Temperature: 25°C |
| A mix of clear and cloudy skies. Slight chance of a thunderstorm. Windy. |
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| Monday, February 23rd, 2026 |
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Overnight |
Temperature: 24°C |
| Mostly clear. Windy at times. |
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Morning |
Temperature: 31°C |
| Sunny. Slight chance of a thunderstorm. Windy at times. |
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Afternoon |
Temperature: 33°C |
| Sunny with cloudy periods. Windy at times. |
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Evening |
Temperature: 28°C |
| Clear with cloudy periods. Windy. |
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