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Merrillville, Indiana

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

Wednesday Sep 16: a high near 73°F and a low around 69°F. The wettest day looks like Thursday Sep 17, near 0.48 in. Highs over the period run 73°F to 83°F.

National Weather Service forecast for Merrillville, Indiana
DayHighLowPrecip
Wednesday Sep 1673°69°0.06 in
Thursday Sep 1777°64°0.48 in
Friday Sep 1877°63°
Saturday Sep 1983°64°0.08 in
Sunday Sep 2075°60°
Monday Sep 2175°59°
Tuesday Sep 2275°

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

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