 |
 Current Alton Weather Conditions |
Updated July 18th at 5:50 pm |
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| Overcast |
| Temperature: | 84°F |
Dew Point: | 75°F |
| Barometer: | 30.04 inHg |
Wind: | N 13 Mph |
| Humidity: | 74.5% |
Visibility: | 0M |
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| Alton Weather Forecast Summary |
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Today
Jul 18th
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Saturday
Jul 19th
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Sunday
Jul 20th
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Monday
Jul 21st
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Tuesday
Jul 22nd
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Thundershowers |
Thundershowers |
Thundershowers |
Thundershowers |
Mix of Cloud and Sun |
82°F
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91°F
72°F |
91°F
74°F |
90°F
71°F |
93°F
75°F |
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| Alton Detailed Weather Forecast |
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| Friday, July 18th, 2025 |
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Evening |
Temperature: 74°F |
| Cloudy with showers likely. Chance of a thunderstorm. |
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| Saturday, July 19th, 2025 |
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Overnight |
Temperature: 73°F |
| A mix of cloudy and clear skies. Slight chance of a thunderstorm. |
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Morning |
Temperature: 82°F |
| Cloudy with showers likely. Chance of a thunderstorm. |
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Afternoon |
Temperature: 89°F |
| Mostly sunny. Chance of a thunderstorm. |
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Evening |
Temperature: 79°F |
| Clear. Chance of a thunderstorm. |
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| Sunday, July 20th, 2025 |
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Overnight |
Temperature: 75°F |
| Cloudy. Slight chance of a thunderstorm. |
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Morning |
Temperature: 84°F |
| Cloudy. Chance of a thunderstorm. |
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Afternoon |
Temperature: 88°F |
| Mostly sunny with a slight chance of showers or thundershowers. |
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Evening |
Temperature: 76°F |
| Mostly clear with showers likely. Chance of a thunderstorm. |
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| Monday, July 21st, 2025 |
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Overnight |
Temperature: 73°F |
| Cloudy with a few showers. Chance of a thunderstorm. |
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Morning |
Temperature: 86°F |
| Cloudy with showers likely. Chance of a thunderstorm. |
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Afternoon |
Temperature: 89°F |
| Cloudy with a slight chance of showers or thundershowers. |
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Evening |
Temperature: 78°F |
| Clear with a chance of showers or thundershowers. |
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| Tuesday, July 22nd, 2025 |
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Overnight |
Temperature: 76°F |
| Clear. Chance of a thunderstorm. |
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Morning |
Temperature: 89°F |
| Sunny. Chance of a thunderstorm. |
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Afternoon |
Temperature: 89°F |
| A mix of cloud and sun. Chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 80°F |
| Clear. Chance of a thunderstorm. |
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| Wednesday, July 23rd, 2025 |
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Overnight |
Temperature: 76°F |
| Mostly clear. Slight chance of a thunderstorm. |
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Morning |
Temperature: 90°F |
| Sunny. Chance of a thunderstorm. |
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Afternoon |
Temperature: 95°F |
| Sunny. Chance of a thunderstorm. |
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Evening |
Temperature: 80°F |
| Clear. Chance of a thunderstorm. |
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| Thursday, July 24th, 2025 |
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Overnight |
Temperature: 76°F |
| Clear. Slight chance of a thunderstorm. |
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Morning |
Temperature: 88°F |
| Sunny. Chance of a thunderstorm. |
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Afternoon |
Temperature: 92°F |
| Sunny. Chance of a thunderstorm. |
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Evening |
Temperature: 76°F |
| Cloudy with showers likely. Chance of a thunderstorm. Windy. |
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| Friday, July 25th, 2025 |
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Overnight |
Temperature: 74°F |
| A mix of cloudy and clear skies. Slight chance of a thunderstorm. |
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Morning |
Temperature: 88°F |
| Sunny. Chance of a thunderstorm. |
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Afternoon |
Temperature: 90°F |
| Sunny with cloudy periods. Chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 80°F |
| A mix of clear and cloudy skies. Chance of a thunderstorm. |
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| Saturday, July 26th, 2025 |
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Overnight |
Temperature: 76°F |
| A mix of clear and cloudy skies with a chance of showers. |
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Morning |
Temperature: 87°F |
| Sunny with a slight chance of showers or thundershowers. |
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Afternoon |
Temperature: 91°F |
| Mostly sunny. Chance of a thunderstorm. |
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Evening |
Temperature: 79°F |
| Cloudy with a slight chance of showers or thundershowers. |
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