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Hazardous Weather Conditions

Current conditions at

Gary Regional Airport (KGYY)

Lat: 41.61°NLon: 87.41°WElev: 584ft.

Fair

61°F

16°C

Humidity 88%
Wind Speed SW 5 mph
Barometer 29.67 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Jun 12:15 am CDT
Extended Forecast for

Merrillville IN

  • Overnight

    Overnight: Mostly cloudy, with a low around 56. Southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 1pm. Some of the storms could be severe and produce heavy rainfall. High near 72. Breezy, with a south southwest wind 5 to 10 mph becoming south 15 to 25 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 72 °F

    Showers
    Likely then
    Severe
    Thunderstorms
    and Breezy

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 60. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Showers
    Likely then
    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 72. West northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 72 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 55. West wind around 5 mph. Chance of precipitation is 10%.

    Low: 55 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 1am. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 56. Southwest wind around 5 mph, with gusts as high as 10 mph.
Wednesday
Showers, with thunderstorms also possible after 1pm. Some of the storms could be severe and produce heavy rainfall. High near 72. Breezy, with a south southwest wind 5 to 10 mph becoming south 15 to 25 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 60. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 72. West northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 55. West wind around 5 mph. Chance of precipitation is 10%.
Juneteenth
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 57.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
A chance of showers after 1am. Mostly cloudy, with a low around 59.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 74.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Monday
Partly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Merrillville IN
 41.47°N 87.33°W
Last Update:
11:46 pm CDT Jun 16, 2026
Forecast Valid:
12am CDT Jun 17, 2026-6pm CDT Jun 23, 2026
 
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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