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

Areas of Severe Thunderstorms and Excessive Rainfall Through This Weekend

Severe thunderstorms which can bring large hail, damaging winds, and isolated tornadoes will be possible over parts of the central U.S. through this weekend. Thunderstorms with heavy to excessive rainfall moving from Texas into the mid-Mississippi Valley through this weekend may produce areas of flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Gary Regional Airport (KGYY)

Lat: 41.61°NLon: 87.41°WElev: 584ft.

Overcast

72°F

22°C

Humidity 100%
Wind Speed N 13 mph
Barometer 29.89 in
Dewpoint 72°F (22°C)
Visibility 4.00 mi
Last update 5 Jun 1:50 pm CDT
Extended Forecast for

Merrillville IN

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm. Cloudy, with a steady temperature around 77. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 69. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Chance
    Showers then
    T-storms
    Likely

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. West southwest wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 15 mph.

    High: 83 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. East southeast wind around 5 mph, with gusts as high as 10 mph.

    High: 84 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 83. Chance of precipitation is 80%.

    High: 83 °F

    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 86.

    High: 86 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Cloudy, with a steady temperature around 77. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 69. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. West southwest wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. East southeast wind around 5 mph, with gusts as high as 10 mph.
Sunday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Monday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 83. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 67.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 86.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 90.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
Mostly sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Merrillville IN
 41.47°N 87.33°W
Last Update:
1:46 pm CDT Jun 5, 2026
Forecast Valid:
2pm CDT Jun 5, 2026-6pm CDT Jun 11, 2026
 
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