National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Gary Regional Airport (KGYY)

Lat: 41.61°NLon: 87.41°WElev: 584ft.

Fog/Mist

43°F

6°C

Humidity 100%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 43°F (6°C)
Visibility 6.00 mi
Last update 10 Nov 10:50 pm CST
Extended Forecast for

Merrillville IN

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 40. Calm wind becoming south around 5 mph.

    Low: 40 °F

    Patchy Fog

  • Veterans Day

    Veterans Day: Showers likely, mainly between 10am and 5pm. Mostly cloudy, with a high near 56. Light and variable wind becoming north northeast 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers, mainly after 10pm. Mostly cloudy, with a low around 41. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 41 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers. High near 46. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    High: 46 °F

    Showers

  • Thursday Night

    Thursday Night: Rain, possibly mixed with snow showers. Low around 34. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    Low: 34 °F

    Rain/Snow

  • Friday

    Friday: Rain and snow showers likely, becoming all rain after noon. Partly sunny, with a high near 42. Chance of precipitation is 70%.

    High: 42 °F

    Rain/Snow
    Likely then
    Showers
    Likely

  • Friday Night

    Friday Night: A chance of rain and snow showers before 3am, then a chance of rain showers. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.

    Low: 31 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of rain before noon. Mostly sunny, with a high near 44.

    High: 44 °F

    Chance Rain
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 40. Calm wind becoming south around 5 mph.
Veterans Day
Showers likely, mainly between 10am and 5pm. Mostly cloudy, with a high near 56. Light and variable wind becoming north northeast 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 50 percent chance of showers, mainly after 10pm. Mostly cloudy, with a low around 41. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Showers. High near 46. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Thursday Night
Rain, possibly mixed with snow showers. Low around 34. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Friday
Rain and snow showers likely, becoming all rain after noon. Partly sunny, with a high near 42. Chance of precipitation is 70%.
Friday Night
A chance of rain and snow showers before 3am, then a chance of rain showers. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Saturday
A chance of rain before noon. Mostly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Mostly sunny, with a high near 47.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrillville IN
 41.47°N 87.33°W
Last Update:
12:55 am CST Nov 11, 2026
Forecast Valid:
1am CST Nov 11, 2026-6pm CST Nov 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation