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.

Mostly Cloudy

79°F

26°C

Humidity 48%
Wind Speed SW 18 G 44 mph
Barometer 29.91 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 12 Apr 1:50 pm CDT
Extended Forecast for

3 Miles NW Merrillville IN

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 80. Breezy, with a south southwest wind around 25 mph, with gusts as high as 35 mph.

    High: 80 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 1am. Low around 61. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers and
    Breezy

  • Monday

    Monday: Partly sunny, with a high near 78. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 78 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 79 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms. Low around 60. Chance of precipitation is 80%.

    Low: 60 °F

    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms. High near 72. Chance of precipitation is 90%.

    High: 72 °F

    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 75.

    High: 75 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 80. Breezy, with a south southwest wind around 25 mph, with gusts as high as 35 mph.
Tonight
Showers and thunderstorms, mainly before 1am. Low around 61. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Partly sunny, with a high near 78. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. Southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
Showers and thunderstorms. Low around 60. Chance of precipitation is 80%.
Wednesday
Showers and thunderstorms. High near 72. Chance of precipitation is 90%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58.
Thursday
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 56.
Friday
Mostly sunny, with a high near 82.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 59.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Merrillville IN
 41.49°N 87.35°W
Last Update:
1:21 pm CDT Apr 12, 2026
Forecast Valid:
2pm CDT Apr 12, 2026-6pm CDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation