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.

Thunderstorm in Vicinity

68°F

20°C

Humidity 100%
Wind Speed SW 5 mph
Barometer 29.82 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 14 Jun 1:35 am CDT
Extended Forecast for

3 Miles NW Merrillville IN

Flood Advisory until June 14, 05:00am
Click here for hazard details and duration
Flood Advisory
  •  
    Flood Advisory until June 14, 05:00am

    NOW until 5:00am Sun

    Flood Advisory

  • Overnight

    Low: 62 °F

    T-storms
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a steady temperature around 66. North northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 66 °F

    Chance
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. North wind 10 to 15 mph becoming light and variable in the evening.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75. West wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. Southwest wind 5 to 10 mph.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 75. Chance of precipitation is 90%.

    High: 75 °F

    Chance
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 55. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny
    then Showers
    Likely

Detailed Forecast

Overnight
Showers and thunderstorms likely, mainly between 2am and 3am, then showers likely and possibly a thunderstorm after 3am. Cloudy, with a low around 62. West northwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 40 percent chance of showers, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a steady temperature around 66. North northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 52. North wind 10 to 15 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 75. West wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Partly cloudy, with a low around 55. Southwest wind 5 to 10 mph.
Tuesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 75. Chance of precipitation is 90%.
Tuesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 55. Chance of precipitation is 20%.
Wednesday
Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 77.
Wednesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 61.
Thursday
A chance of showers before 1pm. Partly sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 57.
Juneteenth
Sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Merrillville IN
 41.49°N 87.35°W
Last Update:
1:21 am CDT Jun 14, 2026
Forecast Valid:
1am CDT Jun 14, 2026-6pm CDT Jun 20, 2026
 
Forecast Discussion
 
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Additional Resources

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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