 |
 Current Alton Weather Conditions |
Updated January 17th at 4:55 am |
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| Overcast |
| Temperature: | 25°F |
Dew Point: | 7°F |
| Barometer: | 30.01 inHg |
Wind: | N 24 Mph |
| Humidity: | 44.0% |
Visibility: | 0M |
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| Alton Weather Forecast Summary |
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Today
Jan 17th
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Sunday
Jan 18th
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Monday
Jan 19th
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Tuesday
Jan 20th
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Wednesday
Jan 21st
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Cloudy |
Cloudy |
Cloudy |
Cloudy |
Cloudy |
23°F
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35°F
15°F |
19°F
10°F |
38°F
13°F |
39°F
27°F |
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| Alton Detailed Weather Forecast |
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| Saturday, January 17th, 2026 |
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Morning |
Temperature: 21°F |
| Cloudy. Windy. |
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Afternoon |
Temperature: 20°F |
| A mix of cloud and sun. Windy at times. |
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Evening |
Temperature: 17°F |
| Clear with cloudy periods. Windy at times. |
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| Sunday, January 18th, 2026 |
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Overnight |
Temperature: 15°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 27°F |
| Cloudy. Windy. |
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Afternoon |
Temperature: 32°F |
| Sunny with cloudy periods. Windy. |
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Evening |
Temperature: 23°F |
| Clear with cloudy periods. Windy. |
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| Monday, January 19th, 2026 |
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Overnight |
Temperature: 12°F |
| Clear with cloudy periods. Windy. |
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Morning |
Temperature: 15°F |
| Cloudy. Windy. |
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Afternoon |
Temperature: 16°F |
| Sunny. |
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Evening |
Temperature: 14°F |
| Clear. |
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| Tuesday, January 20th, 2026 |
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Overnight |
Temperature: 13°F |
| Clear. |
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Morning |
Temperature: 28°F |
| Cloudy. Windy. |
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Afternoon |
Temperature: 33°F |
| Sunny with cloudy periods. Windy. |
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Evening |
Temperature: 31°F |
| Clear with cloudy periods. Windy. |
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| Wednesday, January 21st, 2026 |
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Overnight |
Temperature: 35°F |
| Cloudy. Windy at times. |
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Morning |
Temperature: 38°F |
| Cloudy. Windy at times. |
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Afternoon |
Temperature: 31°F |
| Cloudy. |
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Evening |
Temperature: 28°F |
| Cloudy. Windy at times. |
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| Thursday, January 22nd, 2026 |
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Overnight |
Temperature: 25°F |
| Cloudy. |
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Morning |
Temperature: 33°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 31°F |
| Sunny. |
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Evening |
Temperature: 29°F |
| Clear. Windy at times. |
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| Friday, January 23rd, 2026 |
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Overnight |
Temperature: 27°F |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 37°F |
| Cloudy. |
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Afternoon |
Temperature: 34°F |
| Cloudy. Windy at times. |
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Evening |
Temperature: 26°F |
| Cloudy. Windy at times. |
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| Saturday, January 24th, 2026 |
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Overnight |
Temperature: 23°F |
| Cloudy. Windy at times. |
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Morning |
Temperature: 26°F |
| Cloudy with a chance of flurries. Windy at times. |
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Afternoon |
Temperature: 24°F |
| Cloudy with flurries likely. Windy at times. |
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Evening |
Temperature: 24°F |
| Cloudy with flurries likely. |
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| Sunday, January 25th, 2026 |
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Overnight |
Temperature: 19°F |
| Cloudy. Windy at times. |
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Morning |
Temperature: 18°F |
| Cloudy. Windy at times. |
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Afternoon |
Temperature: 16°F |
| Sunny. |
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Evening |
Temperature: 13°F |
| Cloudy. |
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