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

34°F

1°C

Humidity 75%
Wind Speed NW 6 G 12 mph
Barometer 29.95 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 6 Dec 12:50 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

  • This Afternoon

    This Afternoon: Cloudy, with a high near 31. West wind around 5 mph becoming south southeast.

    High: 31 °F

    Cloudy

  • Tonight

    Tonight: Snow, mainly after 11pm. Low around 26. Southeast wind around 5 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 26 °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 80%. 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.

    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. Cloudy, with a low around 34.

    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

Detailed Forecast

This Afternoon
Cloudy, with a high near 31. West wind around 5 mph becoming south southeast.
Tonight
Snow, mainly after 11pm. Low around 26. Southeast wind around 5 mph. Chance of precipitation is 100%. New 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 80%. 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.
Tuesday
Mostly cloudy, with a high near 37.
Tuesday Night
Rain. Cloudy, with a low around 34.
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.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrillville IN
 41.47°N 87.33°W
Last Update:
1:31 pm CST Dec 6, 2025
Forecast Valid:
1pm CST Dec 6, 2025-6pm CST Dec 12, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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