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Areas of Excessive Rainfall and Extreme Heat; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding Tuesday. Hot to extremely hot temperatures are in place through Tuesday across much of the western U.S. and northern New England. Tropical Storm Erin is forecast to become a Major Hurricane by this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Hazardous Weather Conditions

Current conditions at

Lansing Municipal Airport (KIGQ)

Lat: 41.54°NLon: 87.53°WElev: 607ft.

Thunderstorm in Vicinity

72°F

22°C

Humidity 99%
Wind Speed S 5 mph
Barometer 29.99 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 12 Aug 6:35 am CDT
Extended Forecast for

Dyer IN

  • Today

    Today: Showers and thunderstorms likely, mainly after 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 88. Heat index values as high as 96. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Chance
    T-storms and
    Patchy Fog
    then T-storms
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 68. Southwest wind 5 to 10 mph. Chance of precipitation is 50%.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 83. Light north northwest wind becoming north northeast 5 to 10 mph in the morning.

    High: 83 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63. Northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Thursday Night

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

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 88. Heat index values as high as 96. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 68. Southwest wind 5 to 10 mph. Chance of precipitation is 50%.
Wednesday
Mostly sunny, with a high near 83. Light north northwest wind becoming north northeast 5 to 10 mph in the morning.
Wednesday Night
Mostly clear, with a low around 63. Northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Thursday
Sunny, with a high near 82. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 70.
Saturday
Mostly sunny, with a high near 94.
Saturday Night
Partly cloudy, with a low around 73.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
Partly cloudy, with a low around 69.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dyer IN
 41.5°N 87.53°W
Last Update:
6:26 am CDT Aug 12, 2025
Forecast Valid:
6am CDT Aug 12, 2025-6pm CDT Aug 18, 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