Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

South Haven, South Haven Area Regional Airport (KLWA)

Lat: 42.35°NLon: 86.26°WElev: 666ft.

Overcast

63°F

17°C

Humidity 88%
Wind Speed Vrbl 2 mph
Barometer 29.79 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 15 Apr 7:15 am EDT
Extended Forecast for

4 Miles N Decatur MI

Flood Watch until April 17, 02:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until April 17, 02:00am

    NOW until 2:00am Fri

    Flood Watch

  • Today

    High: 73 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 3am, then showers and possibly a thunderstorm between 3am and 5am, then a chance of showers and thunderstorms after 5am.  Low around 61. South wind around 8 mph, with gusts as high as 18 mph.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am.  High near 70. South southwest wind 7 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 70 °F

    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 49. West northwest wind 3 to 6 mph.  Chance of precipitation is 20%.

    Low: 49 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 76. Calm wind becoming south 5 to 8 mph in the morning.

    High: 76 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers, then showers and possibly a thunderstorm after 2am.  Low around 53. Chance of precipitation is 80%.

    Low: 53 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 2pm, then a chance of showers.  High near 67. Chance of precipitation is 80%.

    High: 67 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 2am.  Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance
    Showers

Detailed Forecast

Today
Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. High near 73. Southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms before 3am, then showers and possibly a thunderstorm between 3am and 5am, then a chance of showers and thunderstorms after 5am. Low around 61. South wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 70. South southwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 49. West northwest wind 3 to 6 mph. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 76. Calm wind becoming south 5 to 8 mph in the morning.
Friday Night
A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 53. Chance of precipitation is 80%.
Saturday
Showers and possibly a thunderstorm before 2pm, then a chance of showers. High near 67. Chance of precipitation is 80%.
Saturday Night
A chance of showers before 2am. Mostly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 47.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Decatur MI
 42.17°N 85.98°W (Elev. 758 ft)
7:11 am EDT Apr 15, 2026
7am EDT Apr 15, 2026-6pm EDT Apr 21, 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