 |
 Current Alton Weather Conditions |
Updated December 11th at 8:45 pm |
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| Overcast |
| Temperature: | 32°F |
Dew Point: | 28°F |
| Barometer: | 29.95 inHg |
Wind: | N 19 Mph |
| Humidity: | 86.3% |
Visibility: | 0M |
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| Alton Weather Forecast Summary |
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Today
Dec 11th
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Friday
Dec 12th
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Saturday
Dec 13th
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Sunday
Dec 14th
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Monday
Dec 15th
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Cloudy |
Cloudy |
Cloudy |
Sunny |
Mostly Sunny |
36°F
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37°F
25°F |
23°F
8°F |
13°F
1°F |
37°F
9°F |
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| Alton Detailed Weather Forecast |
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| Friday, December 12th, 2025 |
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Overnight |
Temperature: 31°F |
| A mix of cloudy and clear skies. Windy at times. |
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Morning |
Temperature: 34°F |
| Cloudy. Windy at times. |
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Afternoon |
Temperature: 29°F |
| A mix of cloud and sun. |
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Evening |
Temperature: 26°F |
| Cloudy. |
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| Saturday, December 13th, 2025 |
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Overnight |
Temperature: 21°F |
| Cloudy. Windy at times. |
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Morning |
Temperature: 19°F |
| Cloudy with a chance of flurries. Windy at times. |
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Afternoon |
Temperature: 14°F |
| Cloudy with a chance of flurries. Windy at times. |
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Evening |
Temperature: 10°F |
| Clear with cloudy periods. Windy at times. |
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| Sunday, December 14th, 2025 |
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Overnight |
Temperature: 3°F |
| Clear. Windy at times. |
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Morning |
Temperature: 8°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 9°F |
| Sunny. |
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Evening |
Temperature: 7°F |
| Clear. |
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| Monday, December 15th, 2025 |
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Overnight |
Temperature: 10°F |
| Clear. Windy at times. |
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Morning |
Temperature: 27°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 30°F |
| Sunny. |
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Evening |
Temperature: 29°F |
| Clear with cloudy periods. |
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| Tuesday, December 16th, 2025 |
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Overnight |
Temperature: 28°F |
| Clear. |
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Morning |
Temperature: 40°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 38°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 36°F |
| Cloudy. Windy at times. |
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| Wednesday, December 17th, 2025 |
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Overnight |
Temperature: 37°F |
| Cloudy. Windy at times. |
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Morning |
Temperature: 49°F |
| Cloudy. Windy at times. |
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Afternoon |
Temperature: 54°F |
| Mostly cloudy. Windy. |
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Evening |
Temperature: 55°F |
| Cloudy. Windy. |
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| Thursday, December 18th, 2025 |
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Overnight |
Temperature: 55°F |
| Cloudy with a slight chance of showers. Windy at times. |
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Morning |
Temperature: 57°F |
| Cloudy with a chance of showers. Windy at times. |
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Afternoon |
Temperature: 54°F |
| A mix of cloud and sun with a chance of showers. Windy at times. |
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Evening |
Temperature: 44°F |
| A mix of cloudy and clear skies. Windy at times. |
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| Friday, December 19th, 2025 |
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Overnight |
Temperature: 37°F |
| Cloudy. |
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Morning |
Temperature: 37°F |
| Cloudy with a chance of showers. Showers possibly mixed with wet flurries. |
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Afternoon |
Temperature: 36°F |
| Cloudy with showers likely. Showers possibly mixed with wet flurries. Windy at times. |
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Evening |
Temperature: 38°F |
| Cloudy with showers likely. Showers possibly mixed with wet flurries. Windy at times. |
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