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

Heavy to Excessive Rainfall This Week from the Southwest into Central U.S.

Pacific tropical moisture wrapping into a storm over the southwest U.S. will continue a multi-day heavy rainfall event this week that will extend into the Midwest and southern Plains. Considerable flash flooding is possible across portions of New Mexico and west Texas today through Wednesday. Read More >

Current conditions at

Holland - West Michigan Regional Airport (KBIV)

Lat: 42.75°NLon: 86.1°WElev: 686ft.

Fog/Mist

48°F

9°C

Humidity 100%
Wind Speed Calm
Barometer 30.06 in (1018.0 mb)
Dewpoint 48°F (9°C)
Visibility 6.00 mi
Last update 29 Sep 6:53 am EDT
Extended Forecast for

Allegan MI

  • Today

    Today: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 74 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. Light south wind.

    Low: 57 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers before 11am, then showers likely after 4pm. Mostly cloudy, with a high near 71. South southwest wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely, with thunderstorms also possible after 2am. Cloudy, with a low around 62. South wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 5pm. High near 71. South southwest wind around 6 mph. Chance of precipitation is 80%.

    High: 71 °F

    Showers

  • Thursday Night

    Thursday Night: Showers. Low around 52. Chance of precipitation is 90%.

    Low: 52 °F

    Showers

  • Friday

    Friday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.

    High: 63 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 57. Light south wind.
Wednesday
A chance of showers before 11am, then showers likely after 4pm. Mostly cloudy, with a high near 71. South southwest wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Showers likely, with thunderstorms also possible after 2am. Cloudy, with a low around 62. South wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers, with thunderstorms also possible after 5pm. High near 71. South southwest wind around 6 mph. Chance of precipitation is 80%.
Thursday Night
Showers. Low around 52. Chance of precipitation is 90%.
Friday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Allegan MI
 42.54°N 85.86°W (Elev. 623 ft)
Last Update:
7:06 am EDT Sep 29, 2026
Forecast Valid:
7am EDT Sep 29, 2026-6pm EDT Oct 5, 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