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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

South Haven, South Haven Area Regional Airport (KLWA)

Lat: 42.35°NLon: 86.26°WElev: 666ft.

Fair

57°F

14°C

Humidity 77%
Wind Speed E 5 mph
Barometer 30.06 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 11 Oct 3:35 am EDT
Extended Forecast for

Decatur MI

  • Overnight

    Overnight: Mostly cloudy, with a low around 56. Southeast wind around 5 mph.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 74. Light east wind.

    High: 74 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 56. Light and variable wind.

    Low: 56 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 82. South southwest wind 6 to 10 mph, with gusts as high as 22 mph.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 66. South southwest wind 7 to 9 mph, with gusts as high as 21 mph.

    Low: 66 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers before 8am. Mostly sunny, with a high near 78.

    High: 78 °F

    Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 70.

    High: 70 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 56. Southeast wind around 5 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 74. Light east wind.
Sunday Night
Increasing clouds, with a low around 56. Light and variable wind.
Columbus Day
Mostly sunny, with a high near 82. South southwest wind 6 to 10 mph, with gusts as high as 22 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 66. South southwest wind 7 to 9 mph, with gusts as high as 21 mph.
Tuesday
A 30 percent chance of showers before 8am. Mostly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Mostly cloudy, with a high near 70.
Wednesday Night
Mostly cloudy, with a low around 49.
Thursday
A chance of showers. Mostly cloudy, with a high near 68.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 46.
Friday
A chance of showers. Mostly cloudy, with a high near 61.
Friday Night
A chance of showers. Mostly cloudy, with a low around 37. Breezy.
Saturday
Partly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Decatur MI
 42.11°N 86.01°W (Elev. 771 ft)
Last Update:
3:36 am EDT Oct 11, 2026
Forecast Valid:
3am EDT Oct 11, 2026-6pm EDT Oct 17, 2026
 
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