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Merrillville, Indiana Weather Forecast
Merrillville, Indiana Weather
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Weather Forecast for Merrillville, Indiana : Lake County
Issued: 12:21 pm CST Nov 13, 2025 Latitude: 41.4828144 Longitude: -87.3328139 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Mostly Sunny on This Afternoon Cloudy on Tonight Sunny on Friday Mostly Cloudy on Saturday Sunny on Sunday Mostly Sunny on Monday 20% chance of rain on Tuesday 20% chance of rain on Wednesday
High: 54°F Low: 37°F High: 63°F High: 67°F High: 48°F High: 48°F High: 48°F High: 50°F
Low: 52°F Low: 36°F Low: 31°F Low: 34°F Low: 34°F  
Mostly Sunny Cloudy Sunny Mostly Cloudy Sunny Mostly Sunny Rain Rain
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Current Conditions at
GARY - (KGYY)
57°
Clear
as of 1:50 PM CST
Rel. Humidity: 35%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
6 MPH
240° Southwest
Cloud Level(s): Clear
Current Conditions at
LANSING MUNICIPAL - (KIGQ)
54°
Clear
as of 1:55 PM CST
Rel. Humidity: 32%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
7 MPH
240° Southwest
Cloud Level(s): Clear
Current Conditions at
VALPARAISO - (KVPZ)
52°
Clear
as of 1:56 PM CST
Rel. Humidity: 40%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
6 MPH
260° West
Cloud Level(s): Clear
Current Conditions at
CHICAGO-MIDWAY - (KMDW)
54°
Partly Cloudy
as of 1:53 PM CST
Rel. Humidity: 37%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
8 MPH
270° West
Cloud Level(s): Few at 12000ft, Scattered at 25000ft
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 54. South southwest wind around 5 mph.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 37. South wind around 5 mph.
Sunny on Friday Friday... Sunny, with a high near 63. Southwest wind 5 to 10 mph.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 52. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 67. South southwest wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 36.
Sunny on Sunday Sunday... Sunny, with a high near 48.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 31.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 48.
20% chance of rain Monday Night Monday Night... A chance of rain. Mostly cloudy, with a low around 34.
20% chance of rain Tuesday Tuesday... A chance of rain. Partly sunny, with a high near 48.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 34.
20% chance of rain Wednesday Wednesday... A chance of rain. Partly sunny, with a high near 50.
Current Radar Image


Sun Almanac for Merrillville, Indiana
Sunrise: 06:36 AM
Sunset: 4:31 PM
Civil Sunrise:06:07 AM
Civil Sunset: 5:01 PM
Nautical Sunrise: 05:33 AM
Nautical Sunset: 5:34 PM
Astro Sunrise: 05:01 AM
Astro Sunset: 6:07 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.