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

Hazardous Weather Conditions

Current conditions at

Gary Regional Airport (KGYY)

Lat: 41.61°NLon: 87.41°WElev: 584ft.

Overcast

32°F

0°C

Humidity 100%
Wind Speed S 7 mph
Barometer 29.99 in
Dewpoint 32°F (0°C)
Visibility 8.00 mi
Wind Chill25°F (-4°C)
Last update 6 Dec 8:50 pm CST
Extended Forecast for

Merrillville IN

Winter Weather Advisory December 7, 12:00am until December 7, 09:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Snow, mainly after 11pm. Low around 28. Southeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 28 °F

    Chance Snow
    then Snow

  • Sunday

    Sunday: Snow, mainly before noon. High near 32. North wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    High: 32 °F

    Snow then
    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 9. North wind 5 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph.

    Low: 9 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 21. East wind around 5 mph becoming south in the afternoon.

    High: 21 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 11. South wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 11 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 37.

    High: 37 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain. Low around 34. Chance of precipitation is 80%.

    Low: 34 °F

    Rain

  • Wednesday

    Wednesday: A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 37.

    High: 37 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: A chance of snow. Mostly cloudy, with a low around 19.

    Low: 19 °F

    Chance Snow

Detailed Forecast

Tonight
Snow, mainly after 11pm. Low around 28. Southeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 3 inches possible.
Sunday
Snow, mainly before noon. High near 32. North wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 9. North wind 5 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph.
Monday
Partly sunny, with a high near 21. East wind around 5 mph becoming south in the afternoon.
Monday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 11. South wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly cloudy, with a high near 37.
Tuesday Night
Rain. Low around 34. Chance of precipitation is 80%.
Wednesday
A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 37.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 19.
Thursday
A chance of snow. Mostly cloudy, with a high near 27.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 13.
Friday
Mostly cloudy, with a high near 20.
Friday Night
Mostly cloudy, with a low around 2.
Saturday
Partly sunny, with a high near 14.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrillville IN
 41.47°N 87.33°W
Last Update:
9:11 pm CST Dec 6, 2025
Forecast Valid:
9pm CST Dec 6, 2025-6pm CST Dec 13, 2025
 
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