Extreme Heat in the Southwest; Severe Weather in the Northern Plains; Heavy Rain in the East

Extreme heat continues across the Southwest as temperatures may top 120 degrees. The heat may expand across the West and south-central U.S. into the middle of the month. Severe thunderstorms capable of severe wind gusts and large hail will be the primary hazards today across the northern Plains into the upper Midwest. Rainfall could be locally heavy across the Eastern U.S. today. Read More >

Current conditions at

South Haven, South Haven Area Regional Airport (KLWA)

Lat: 42.35°NLon: 86.26°WElev: 666ft.

Fair

61°F

16°C

Humidity 94%
Wind Speed NE 1 mph
Barometer 30.02 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 4 Aug 1:15 am EDT
Extended Forecast for

Decatur MI

  • Overnight

    Overnight: Clear, with a low around 57. Calm wind.

    Low: 57 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. South southwest wind 3 to 7 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60. Light south wind.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm.  Mostly sunny, with a high near 83. Southwest wind 3 to 8 mph.  Chance of precipitation is 20%.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm.  Low around 61. Light south southwest wind.  Chance of precipitation is 80%.

    Low: 61 °F

    Showers

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 2pm.  High near 79. Chance of precipitation is 80%.

    High: 79 °F

    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 57. Calm wind.
Tuesday
Sunny, with a high near 84. South southwest wind 3 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 60. Light south wind.
Wednesday
A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 83. Southwest wind 3 to 8 mph. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 61. Light south southwest wind. Chance of precipitation is 80%.
Thursday
Showers, with thunderstorms also possible after 2pm. High near 79. Chance of precipitation is 80%.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 57.
Friday
Partly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
A chance of showers. Partly cloudy, with a low around 65.
Monday
Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Decatur MI
 42.11°N 85.98°W (Elev. 781 ft)
1:16 am EDT Aug 4, 2026
1am EDT Aug 4, 2026-6pm EDT Aug 10, 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