 |
 Current Alton Weather Conditions |
Updated September 12th at 6:50 am |
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| Temperature: | 61°F |
Dew Point: | 59°F |
| Barometer: | 30.15 inHg |
Wind: | 6 Mph |
| Humidity: | 93.8% |
Visibility: | 0M |
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| Alton Weather Forecast Summary |
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Today
Sep 12th
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Saturday
Sep 13th
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Sunday
Sep 14th
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Monday
Sep 15th
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Tuesday
Sep 16th
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Cloudy |
Cloudy |
Cloudy |
Cloudy |
Thundershowers |
92°F
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97°F
68°F |
97°F
68°F |
94°F
68°F |
97°F
69°F |
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| Alton Detailed Weather Forecast |
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| Friday, September 12th, 2025 |
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Morning |
Temperature: 83°F |
| Sunny. |
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Afternoon |
Temperature: 89°F |
| Cloudy. |
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Evening |
Temperature: 75°F |
| Mostly clear. Windy at times. |
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| Saturday, September 13th, 2025 |
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Overnight |
Temperature: 68°F |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 87°F |
| Mostly sunny. Slight chance of a thunderstorm. |
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Afternoon |
Temperature: 93°F |
| Sunny with cloudy periods. Chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 75°F |
| Cloudy with a chance of showers. |
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| Sunday, September 14th, 2025 |
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Overnight |
Temperature: 69°F |
| Cloudy with a chance of showers. |
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Morning |
Temperature: 85°F |
| Cloudy with a slight chance of showers or thundershowers. |
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Afternoon |
Temperature: 93°F |
| Cloudy. Chance of a thunderstorm. |
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Evening |
Temperature: 71°F |
| Cloudy with a chance of showers. Slight chance of a thunderstorm. |
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| Monday, September 15th, 2025 |
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Overnight |
Temperature: 68°F |
| Cloudy. |
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Morning |
Temperature: 84°F |
| Cloudy. Chance of a thunderstorm. |
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Afternoon |
Temperature: 91°F |
| Cloudy. Chance of a thunderstorm. |
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Evening |
Temperature: 76°F |
| Cloudy with a chance of showers. Slight chance of a thunderstorm. |
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| Tuesday, September 16th, 2025 |
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Overnight |
Temperature: 71°F |
| Clear. |
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Morning |
Temperature: 88°F |
| Sunny. Chance of a thunderstorm. |
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Afternoon |
Temperature: 93°F |
| A mix of sun and cloud. Chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 70°F |
| Cloudy with showers likely. |
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| Wednesday, September 17th, 2025 |
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Overnight |
Temperature: 68°F |
| A mix of cloudy and clear skies with a chance of showers. |
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Morning |
Temperature: 85°F |
| Sunny. Chance of a thunderstorm. |
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Afternoon |
Temperature: 93°F |
| Cloudy. Chance of a thunderstorm. |
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Evening |
Temperature: 71°F |
| Cloudy with showers likely. |
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| Thursday, September 18th, 2025 |
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Overnight |
Temperature: 70°F |
| Cloudy with a chance of showers. Slight chance of a thunderstorm. |
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Morning |
Temperature: 82°F |
| Cloudy. Chance of a thunderstorm. |
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Afternoon |
Temperature: 88°F |
| Cloudy. Chance of a thunderstorm. |
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Evening |
Temperature: 69°F |
| Cloudy with showers likely. Windy at times. |
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| Friday, September 19th, 2025 |
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Overnight |
Temperature: 65°F |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 79°F |
| Sunny. Chance of a thunderstorm. |
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Afternoon |
Temperature: 81°F |
| Cloudy with showers likely. Chance of a thunderstorm. Windy. |
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Evening |
Temperature: 64°F |
| Clear with a few showers. |
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| Saturday, September 20th, 2025 |
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Overnight |
Temperature: 62°F |
| Clear. |
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Morning |
Temperature: 75°F |
| Sunny. |
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Afternoon |
Temperature: 82°F |
| Sunny with cloudy periods. |
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Evening |
Temperature: 68°F |
| Clear. |
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