Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Current conditions at

Gary Regional Airport (KGYY)

Lat: 41.61°NLon: 87.41°WElev: 584ft.

Fair

79°F

26°C

Humidity 51%
Wind Speed N 10 mph
Barometer 30.18 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 30 Sep 1:50 pm CDT
Extended Forecast for

Merrillville IN

  • This Afternoon

    This Afternoon: Sunny, with a high near 81. North northeast wind around 10 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 55. North northeast wind around 5 mph becoming east after midnight. Winds could gust as high as 10 mph.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 79. East wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 79 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 54. East southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 54 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 82. South southeast wind around 5 mph, with gusts as high as 10 mph.

    High: 82 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 81. North northeast wind around 10 mph.
Tonight
Partly cloudy, with a low around 55. North northeast wind around 5 mph becoming east after midnight. Winds could gust as high as 10 mph.
Wednesday
Partly sunny, with a high near 79. East wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly cloudy, with a low around 54. East southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
Partly sunny, with a high near 82. South southeast wind around 5 mph, with gusts as high as 10 mph.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 63.
Monday
Mostly sunny, with a high near 82.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Merrillville IN
 41.47°N 87.33°W
1:56 pm CDT Sep 30, 2025
2pm CDT Sep 30, 2025-6pm CDT Oct 6, 2025
 
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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