National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Showers and Cooler Temperatures in the East; Multi-Day Rain Event in the Southwest

A cold front in the East will bring showers and thunderstorms and much cooler temperatures from the Northeast into the Southeast. The Southwest, centered around New Mexico, will continue to see showers and thunderstorms, where there maybe isolated flash flooding. Tropical moisture will bring a multi-day period of thunderstorms and locally heavy rainfall across the Southwest beginning Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Gary Regional Airport (KGYY)

Lat: 41.61°NLon: 87.41°WElev: 584ft.

A Few Clouds

64°F

18°C

Humidity 56%
Wind Speed NE 13 mph
Barometer 30.41 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 8 Oct 11:50 am CDT
Extended Forecast for

Merrillville IN

  • This Afternoon

    This Afternoon: Sunny, with a high near 62. North northeast wind around 10 mph.

    High: 62 °F

    Sunny

  • Tonight

    Tonight: Patchy frost after 5am. Otherwise, clear, with a low around 35. Northeast wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Clear then
    Patchy Frost

  • Thursday

    Thursday: Areas of frost before 8am. Otherwise, sunny, with a high near 64. Southeast wind around 5 mph, with gusts as high as 10 mph.

    High: 64 °F

    Areas Frost
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40. East wind around 5 mph becoming south after midnight.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 66. South southwest wind around 5 mph, with gusts as high as 10 mph.

    High: 66 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 62. North northeast wind around 10 mph.
Tonight
Patchy frost after 5am. Otherwise, clear, with a low around 35. Northeast wind around 5 mph becoming calm in the evening.
Thursday
Areas of frost before 8am. Otherwise, sunny, with a high near 64. Southeast wind around 5 mph, with gusts as high as 10 mph.
Thursday Night
Mostly clear, with a low around 40. East wind around 5 mph becoming south after midnight.
Friday
Mostly sunny, with a high near 66. South southwest wind around 5 mph, with gusts as high as 10 mph.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 52.
Columbus Day
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrillville IN
 41.47°N 87.33°W
Last Update:
9:56 am CDT Oct 8, 2025
Forecast Valid:
12pm CDT Oct 8, 2025-6pm CDT Oct 14, 2025
 
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