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Alton, Indiana

Current conditions and the National Weather Service 7-day forecast for Alton, Indiana — temperature, rain chance, wind, radar and active alerts.

Wednesday Sep 16: a high near 95°F and a low around 71°F. The wettest day looks like Friday Sep 18, near 0.01 in. Highs over the period run 85°F to 95°F.

National Weather Service forecast for Alton, Indiana
DayHighLowPrecip
Wednesday Sep 1695°71°
Thursday Sep 1795°71°
Friday Sep 1892°68°0.01 in
Saturday Sep 1993°71°
Sunday Sep 2093°68°
Monday Sep 2190°65°
Tuesday Sep 2285°

NOAA NWS NDFD 2.5 km, run 2026-09-16 16:00 UTC · days are local time in America/Indiana/Marengo. The live page updates continuously.

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