Weather WorldAlton, IN 7-Day Weather Forecast
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Alton Weather Forecast
Alton, IN Weather Forecast Date: 408 PM EDT Mon Oct 12 2026
Weather forecast for Alton, IN
Tonight Lo: 61°F Lo: 16°C |
Tonight... Warmer. Mostly clear. Lows in the lower 60s. South winds around 5 mph. |
Tue Hi: 89°FHi: 32°C Lo: 69°F Lo: 21°C |
Tuesday... Sunny. Highs in the upper 80s. Southwest winds 5 to 10 mph. |
Wed Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Wednesday... Sunny with chance of showers and slight chance of thunderstorms in the morning, then mostly cloudy with showers and chance of thunderstorms in the afternoon. Highs in the mid 80s. Southwest winds up to 5 mph. Chance of precipitation 90%. |
| Thu Hi: 81°FHi: 27°C Lo: 59°F Lo: 15°C |
Thursday... Mostly cloudy. Showers likely and slight chance of thunderstorms in the morning, then chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of precipitation 70%. |
| Fri Hi: 61°FHi: 16°C Lo: 39°F Lo: 4°C |
Friday... Cooler. Partly sunny. Chance of rain showers and slight chance of thunderstorms in the morning, then slight chance of rain showers in the afternoon. Near steady temperature in the lower 60s. Chance of precipitation 30%. |
| Sat Hi: 59°FHi: 15°C Lo: 35°F Lo: 2°C |
Saturday... Sunny. Highs in the upper 50s. |
| Sun Hi: 69°FHi: 21°C Lo: 41°F Lo: 5°C |
Sunday... Sunny. Highs in the upper 60s. |
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