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 Merrillville Weather Forecast Summary |
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Today
May 19th
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Wednesday
May 20th
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Thursday
May 21st
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Friday
May 22nd
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Saturday
May 23rd
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Mix of Cloud and Sun |
Mostly Sunny |
Mostly Sunny |
Mostly Cloudy with Showers |
Mostly Cloudy |
79°F
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54°F
47°F |
65°F
46°F |
61°F
47°F |
70°F
56°F |
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| Merrillville Detailed Weather Forecast |
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| Wednesday, May 20th, 2026 |
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Overnight |
Temperature: 51°F |
| Clear with cloudy periods. Windy at times. |
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Morning |
Temperature: 51°F |
| Sunny with cloudy periods. Windy at times. |
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Afternoon |
Temperature: 52°F |
| Mostly sunny. Windy. |
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Evening |
Temperature: 47°F |
| A mix of cloudy and clear skies. Windy at times. |
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| Thursday, May 21st, 2026 |
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Overnight |
Temperature: 47°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 53°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 64°F |
| Mostly sunny. Windy at times. |
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Evening |
Temperature: 56°F |
| Mostly clear. Windy at times. |
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| Friday, May 22nd, 2026 |
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Overnight |
Temperature: 47°F |
| A mix of cloudy and clear skies. Windy at times. |
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Morning |
Temperature: 54°F |
| Mostly cloudy. Windy at times. |
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Afternoon |
Temperature: 59°F |
| Cloudy with showers likely. Windy at times. |
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Evening |
Temperature: 56°F |
| Cloudy with showers likely. Windy at times. |
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| Saturday, May 23rd, 2026 |
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Overnight |
Temperature: 56°F |
| Cloudy with a chance of showers. Windy at times. |
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Morning |
Temperature: 58°F |
| A mix of cloud and sun with a chance of showers. |
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Afternoon |
Temperature: 69°F |
| A mix of cloud and sun. |
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Evening |
Temperature: 64°F |
| A mix of cloudy and clear skies. |
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| Sunday, May 24th, 2026 |
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Overnight |
Temperature: 59°F |
| Cloudy with a chance of showers. |
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Morning |
Temperature: 62°F |
| A mix of cloud and sun with a chance of showers. |
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Afternoon |
Temperature: 73°F |
| Sunny. |
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Evening |
Temperature: 65°F |
| Mostly clear. |
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| Monday, May 25th, 2026 |
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Overnight |
Temperature: 59°F |
| Mostly clear. |
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Morning |
Temperature: 64°F |
| A mix of cloud and sun. |
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Afternoon |
Temperature: 74°F |
| A mix of sun and cloud. Windy at times. |
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Evening |
Temperature: 66°F |
| A mix of cloudy and clear skies. Windy at times. |
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| Tuesday, May 26th, 2026 |
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Overnight |
Temperature: 64°F |
| Mostly cloudy with a chance of showers. Windy at times. |
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Morning |
Temperature: 66°F |
| Cloudy with a few showers. Windy at times. |
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Afternoon |
Temperature: 76°F |
| Sunny with cloudy periods with showers likely. Chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 70°F |
| Mostly clear with showers likely. Chance of a thunderstorm. Windy at times. |
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| Wednesday, May 27th, 2026 |
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Overnight |
Temperature: 66°F |
| Clear with cloudy periods with showers likely. Windy at times. |
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Morning |
Temperature: 71°F |
| A mix of sun and cloud with a chance of showers or thundershowers. Windy at times. |
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Afternoon |
Temperature: 80°F |
| Sunny with cloudy periods with a chance of showers or thundershowers. |
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Evening |
Temperature: 74°F |
| Clear with cloudy periods with a chance of showers or thundershowers. |
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