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

Hazardous Weather Conditions

Current conditions at

South Haven, South Haven Area Regional Airport (KLWA)

Lat: 42.35°NLon: 86.26°WElev: 666ft.

Fair

74°F

23°C

Humidity 81%
Wind Speed S 8 mph
Barometer 29.92 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 21 Jun 6:55 am EDT
Extended Forecast for

Decatur MI

Heat Advisory June 21, 12:00pm until June 22, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Partly sunny, then gradually becoming sunny and hot, with a high near 93. Heat index values as high as 102. South southwest wind 9 to 14 mph, with gusts as high as 30 mph.

    High: 93 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 77. South southwest wind 10 to 13 mph, with gusts as high as 28 mph.

    Low: 77 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 96. Heat index values as high as 104. Southwest wind around 10 mph, with gusts as high as 24 mph.

    High: 96 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 75. South southwest wind 7 to 9 mph, with gusts as high as 21 mph.

    Low: 75 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 95. Southwest wind 7 to 10 mph, with gusts as high as 23 mph.

    High: 95 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers after 2pm. Mostly sunny and hot, with a high near 92.

    High: 92 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers after 8am. Mostly sunny, with a high near 89.

    High: 89 °F

    Chance
    Showers

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny and hot, with a high near 93. Heat index values as high as 102. South southwest wind 9 to 14 mph, with gusts as high as 30 mph.
Tonight
Clear, with a low around 77. South southwest wind 10 to 13 mph, with gusts as high as 28 mph.
Sunday
Sunny and hot, with a high near 96. Heat index values as high as 104. Southwest wind around 10 mph, with gusts as high as 24 mph.
Sunday Night
Clear, with a low around 75. South southwest wind 7 to 9 mph, with gusts as high as 21 mph.
Monday
Sunny and hot, with a high near 95. Southwest wind 7 to 10 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 73.
Tuesday
A 40 percent chance of showers after 2pm. Mostly sunny and hot, with a high near 92.
Tuesday Night
A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 68.
Wednesday
A chance of showers after 8am. Mostly sunny, with a high near 89.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Thursday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Friday
A chance of showers. Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Decatur MI
 42.11°N 85.98°W (Elev. 781 ft)
Last Update:
7:03 am EDT Jun 21, 2025
Forecast Valid:
7am EDT Jun 21, 2025-6pm EDT Jun 27, 2025
 
Forecast Discussion
 
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Additional Resources

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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