 |
 Current Alton Weather Conditions |
Updated May 9th at 7:53 am |
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| Overcast |
| Temperature: | 63°F |
Dew Point: | 61°F |
| Barometer: | 29.92 inHg |
Wind: | N 9 Mph |
| Humidity: | 93.8% |
Visibility: | 0M |
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| Alton Weather Forecast Summary |
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Today
May 9th
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Sunday
May 10th
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Monday
May 11th
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Tuesday
May 12th
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Wednesday
May 13th
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Mix of Cloud and Sun |
Mix of Sun and Cloud |
Mostly Cloudy with Showers |
Mostly Sunny |
Mostly Sunny |
73°F
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76°F
62°F |
73°F
56°F |
78°F
52°F |
80°F
56°F |
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| Alton Detailed Weather Forecast |
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| Saturday, May 9th, 2026 |
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Morning |
Temperature: 63°F |
| Mostly cloudy with a slight chance of showers. |
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Afternoon |
Temperature: 72°F |
| Mostly sunny with a slight chance of showers or thundershowers. |
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Evening |
Temperature: 65°F |
| A mix of cloudy and clear skies with a slight chance of showers or thundershowers. |
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| Sunday, May 10th, 2026 |
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Overnight |
Temperature: 62°F |
| A mix of cloudy and clear skies with a slight chance of showers. |
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Morning |
Temperature: 67°F |
| A mix of sun and cloud with a chance of showers or thundershowers. |
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Afternoon |
Temperature: 74°F |
| A mix of sun and cloud with a chance of showers or thundershowers. |
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Evening |
Temperature: 69°F |
| Clear with cloudy periods with a chance of showers or thundershowers. |
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| Monday, May 11th, 2026 |
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Overnight |
Temperature: 65°F |
| A mix of cloudy and clear skies with showers likely. Slight chance of a thunderstorm. |
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Morning |
Temperature: 66°F |
| Mostly cloudy with showers likely. |
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Afternoon |
Temperature: 67°F |
| Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 58°F |
| A mix of cloudy and clear skies with a chance of showers. Windy at times. |
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| Tuesday, May 12th, 2026 |
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Overnight |
Temperature: 54°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 59°F |
| Sunny with cloudy periods. |
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Afternoon |
Temperature: 76°F |
| Sunny. |
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Evening |
Temperature: 64°F |
| Clear. |
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| Wednesday, May 13th, 2026 |
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Overnight |
Temperature: 57°F |
| Clear. |
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Morning |
Temperature: 64°F |
| Sunny. |
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Afternoon |
Temperature: 79°F |
| Mostly sunny. |
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Evening |
Temperature: 66°F |
| A mix of clear and cloudy skies. |
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| Thursday, May 14th, 2026 |
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Overnight |
Temperature: 59°F |
| Clear. |
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Morning |
Temperature: 66°F |
| Sunny. |
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Afternoon |
Temperature: 78°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 62°F |
| Clear. |
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| Friday, May 15th, 2026 |
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Overnight |
Temperature: 53°F |
| Clear. |
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Morning |
Temperature: 63°F |
| Sunny. |
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Afternoon |
Temperature: 82°F |
| Sunny. |
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Evening |
Temperature: 70°F |
| Clear. Slight chance of a thunderstorm. |
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| Saturday, May 16th, 2026 |
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Overnight |
Temperature: 62°F |
| Mostly clear. |
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Morning |
Temperature: 71°F |
| Mostly sunny. |
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Afternoon |
Temperature: 87°F |
| Sunny. |
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Evening |
Temperature: 71°F |
| Clear. Slight chance of a thunderstorm. |
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| Sunday, May 17th, 2026 |
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Overnight |
Temperature: 64°F |
| Clear. |
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Morning |
Temperature: 73°F |
| Sunny. Chance of a thunderstorm. |
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Afternoon |
Temperature: 89°F |
| Sunny. Chance of a thunderstorm. |
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Evening |
Temperature: 75°F |
| Clear. Chance of a thunderstorm. |
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