 |
 Current Alton Weather Conditions |
Updated September 19th at 6:50 am |
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| Temperature: | 64°F |
Dew Point: | 63°F |
| Barometer: | 30.04 inHg |
Wind: | 9 Mph |
| Humidity: | 93.9% |
Visibility: | 0M |
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| Alton Weather Forecast Summary |
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Today
Sep 19th
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Saturday
Sep 20th
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Sunday
Sep 21st
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Monday
Sep 22nd
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Tuesday
Sep 23rd
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Cloudy |
Cloudy |
Cloudy |
Thundershowers |
Thundershowers |
86°F
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87°F
63°F |
81°F
66°F |
83°F
64°F |
81°F
64°F |
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| Alton Detailed Weather Forecast |
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| Friday, September 19th, 2025 |
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Morning |
Temperature: 78°F |
| Cloudy. Chance of a thunderstorm. |
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Afternoon |
Temperature: 82°F |
| A mix of cloud and sun. Chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 68°F |
| Clear with cloudy periods. |
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| Saturday, September 20th, 2025 |
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Overnight |
Temperature: 64°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 83°F |
| Cloudy. Slight chance of a thunderstorm. Windy at times. |
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Afternoon |
Temperature: 81°F |
| Cloudy. Slight chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 67°F |
| Cloudy. |
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| Sunday, September 21st, 2025 |
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Overnight |
Temperature: 66°F |
| Cloudy with a chance of showers. |
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Morning |
Temperature: 76°F |
| Cloudy. Slight chance of a thunderstorm. Windy at times. |
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Afternoon |
Temperature: 78°F |
| Cloudy. Windy. |
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Evening |
Temperature: 69°F |
| Cloudy. |
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| Monday, September 22nd, 2025 |
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Overnight |
Temperature: 65°F |
| Cloudy. |
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Morning |
Temperature: 80°F |
| Cloudy. Chance of a thunderstorm. Windy at times. |
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Afternoon |
Temperature: 77°F |
| Cloudy with showers likely. Chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 68°F |
| Clear with cloudy periods with showers likely. Slight chance of a thunderstorm. Windy at times. |
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| Tuesday, September 23rd, 2025 |
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Overnight |
Temperature: 65°F |
| Cloudy with showers likely. |
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Morning |
Temperature: 74°F |
| Cloudy with a chance of showers or thundershowers. |
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Afternoon |
Temperature: 78°F |
| A mix of cloud and sun with a slight chance of showers or thundershowers. |
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Evening |
Temperature: 68°F |
| Clear with cloudy periods with a chance of showers. |
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| Wednesday, September 24th, 2025 |
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Overnight |
Temperature: 67°F |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 79°F |
| Sunny with cloudy periods. Slight chance of a thunderstorm. |
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Afternoon |
Temperature: 73°F |
| Cloudy with a few showers. Chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 68°F |
| Cloudy with a few showers. Windy at times. |
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| Thursday, September 25th, 2025 |
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Overnight |
Temperature: 66°F |
| Cloudy with showers likely. Slight chance of a thunderstorm. Windy at times. |
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Morning |
Temperature: 71°F |
| Cloudy with showers likely. Windy. |
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Afternoon |
Temperature: 71°F |
| Cloudy. Windy at times. |
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Evening |
Temperature: 60°F |
| Clear. |
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| Friday, September 26th, 2025 |
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Overnight |
Temperature: 56°F |
| Clear. |
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Morning |
Temperature: 71°F |
| Cloudy. |
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Afternoon |
Temperature: 71°F |
| Cloudy. |
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Evening |
Temperature: 60°F |
| Cloudy. |
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| Saturday, September 27th, 2025 |
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Overnight |
Temperature: 56°F |
| Cloudy. |
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Morning |
Temperature: 64°F |
| Cloudy. |
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Afternoon |
Temperature: 68°F |
| Cloudy. |
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Evening |
Temperature: 58°F |
| Clear with cloudy periods. |
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