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

Tropical Moisture Will Bring Heavy to Excessive Rainfall with Possible Flooding This Week

Tropical moisture from the remnants of Odalys and Hurricane Polo will surge over the southwest into the central U.S. this week with several days of heavy to excessive rainfall which may bring limited to considerable flooding. Flood Watches have been issued through Wednesday in the southwest U.S. and moderate risk outlooks have been issued today through Thursday. Read More >

Current conditions at

South Haven, South Haven Area Regional Airport (KLWA)

Lat: 42.35°NLon: 86.26°WElev: 666ft.

Fair

70°F

21°C

Humidity 57%
Wind Speed NW 6 mph
Barometer 30.08 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 28 Sep 1:55 pm EDT
Extended Forecast for

Decatur MI

  • This Afternoon

    This Afternoon: Sunny, with a high near 73. North wind around 5 mph.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 49. Light north wind.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75. Calm wind becoming south around 6 mph in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 76. South wind 6 to 9 mph, with gusts as high as 21 mph.

    High: 76 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers, mainly after 8am. High near 75. Chance of precipitation is 80%.

    High: 75 °F

    Showers

  • Thursday Night

    Thursday Night: Showers, mainly before 8pm. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Showers

  • Friday

    Friday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 73. North wind around 5 mph.
Tonight
Mostly clear, with a low around 49. Light north wind.
Tuesday
Mostly sunny, with a high near 75. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 56. Calm wind becoming south southeast around 5 mph after midnight.
Wednesday
Partly sunny, with a high near 76. South wind 6 to 9 mph, with gusts as high as 21 mph.
Wednesday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 64.
Thursday
Showers, mainly after 8am. High near 75. Chance of precipitation is 80%.
Thursday Night
Showers, mainly before 8pm. Mostly cloudy, with a low around 53.
Friday
Partly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Mostly sunny, with a high near 66.
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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:
2:03 pm EDT Sep 28, 2026
Forecast Valid:
2pm EDT Sep 28, 2026-6pm EDT Oct 4, 2026
 
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