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

Holland - West Michigan Regional Airport (KBIV)

Lat: 42.75°NLon: 86.1°WElev: 686ft.

Fair

68°F

20°C

Humidity 61%
Wind Speed NW 9 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 28 Sep 5:53 pm EDT
Extended Forecast for

Allegan MI

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 49. Northwest wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 73. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 73 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 58. Light and variable wind.

    Low: 58 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 73. South southwest wind 5 to 7 mph.

    High: 73 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 63. South wind around 6 mph.

    Low: 63 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 71. Chance of precipitation is 80%.

    High: 71 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 50. Chance of precipitation is 80%.

    Low: 50 °F

    Showers

  • Friday

    Friday: A chance of showers before 2pm. Partly sunny, with a high near 65.

    High: 65 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 49. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 73. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 58. Light and variable wind.
Wednesday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 73. South southwest wind 5 to 7 mph.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 63. South wind around 6 mph.
Thursday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 71. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 50. Chance of precipitation is 80%.
Friday
A chance of showers before 2pm. Partly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
Partly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Sunny, with a high near 60.
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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:
5:16 pm EDT Sep 28, 2026
Forecast Valid:
5pm EDT Sep 28, 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