Tropical Storm Edouard Impacting the Northwestern Gulf Coast; Hazardous Heat expands in the East

Tropical Storm Edouard will impact the northwestern Gulf Coast through Wednesday with gusty winds, storm surge, and heavy rainfall. Flash and river flooding will be possible, especially in southeastern Texas. Hazardous heat will expand across the central and eastern U.S. by mid-week, and daily chances for severe thunderstorms are expected from the eastern Great Lakes to the Mid-Atlantic this week. Read More >

Current conditions at

South Haven, South Haven Area Regional Airport (KLWA)

Lat: 42.35°NLon: 86.26°WElev: 666ft.

Fair

82°F

28°C

Humidity 70%
Wind Speed SW 10 mph
Barometer 29.96 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 2 Sep 4:55 am EDT
Extended Forecast for

Decatur MI

Heat Advisory September 2, 12:00pm until September 2, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Sunny and hot, with a high near 93. Heat index values as high as 96. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 22 mph.

    High: 93 °F

    Hot

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 2am.  Partly cloudy, with a low around 72. West southwest wind 5 to 9 mph, with gusts as high as 21 mph.

    Low: 72 °F

    Partly Cloudy
    then Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly before 4pm.  Mostly sunny, with a high near 89. Heat index values as high as 95. Calm wind becoming west around 6 mph in the afternoon.

    High: 89 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am.  Partly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers and thunderstorms likely before 11am, then a chance of showers between 11am and 2pm.  Mostly cloudy, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.  Chance of precipitation is 60%.

    High: 87 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms after 2am.  Mostly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm.  Partly sunny, with a high near 83. Chance of precipitation is 30%.

    High: 83 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny and hot, with a high near 93. Heat index values as high as 96. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 22 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 72. West southwest wind 5 to 9 mph, with gusts as high as 21 mph.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly sunny, with a high near 89. Heat index values as high as 95. Calm wind becoming west around 6 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and thunderstorms likely before 11am, then a chance of showers between 11am and 2pm. Mostly cloudy, with a high near 87. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 67.
Saturday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm. Partly sunny, with a high near 83. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 60.
Labor Day
Partly sunny, with a high near 81.
Monday Night
Mostly cloudy, with a low around 59.
Tuesday
Partly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Decatur MI
 42.11°N 85.98°W (Elev. 781 ft)
5:03 am EDT Sep 2, 2026
5am EDT Sep 2, 2026-6pm EDT Sep 8, 2026
 
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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