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.

Fog/Mist

72°F

22°C

Humidity 100%
Wind Speed Calm
Barometer 29.89 in
Dewpoint 72°F (22°C)
Visibility 4.00 mi
Last update 13 Aug 3:55 am CDT
Extended Forecast for

2 Miles SE Merrillville IN

Dense Fog Advisory until August 13, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until August 13, 09:00am

    NOW until 9:00am Thu

    Dense Fog Advisory

  • Overnight

    Low: 66 °F

    Areas Dense
    Fog

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 2pm. Widespread dense fog, mainly before 9am. Otherwise, mostly cloudy, with a high near 80. Calm wind becoming east around 5 mph in the morning.

    High: 80 °F

    Dense Fog
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm. Cloudy, with a low around 66. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    Showers
    Likely

  • Friday

    Friday: Showers and thunderstorms likely before 4pm, then a chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 80. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.

    High: 80 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, with thunderstorms also possible after 7pm. Mostly cloudy, with a low around 67. Southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.

    Low: 67 °F

    Chance
    T-storms

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Overnight
Areas of dense fog. Otherwise, mostly cloudy, with a low around 66. Calm wind.
Thursday
A 50 percent chance of showers and thunderstorms after 2pm. Widespread dense fog, mainly before 9am. Otherwise, mostly cloudy, with a high near 80. Calm wind becoming east around 5 mph in the morning.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm. Cloudy, with a low around 66. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Showers and thunderstorms likely before 4pm, then a chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 80. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.
Friday Night
A chance of showers, with thunderstorms also possible after 7pm. Mostly cloudy, with a low around 67. Southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Sunday
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.
Sunday Night
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66.
Monday
Mostly sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Partly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Merrillville IN
 41.45°N 87.3°W
Last Update:
3:36 am CDT Aug 13, 2026
Forecast Valid:
4am CDT Aug 13, 2026-6pm CDT Aug 19, 2026
 
Forecast Discussion
 
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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