Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Current conditions at

Holland - West Michigan Regional Airport (KBIV)

Lat: 42.75°NLon: 86.1°WElev: 686ft.

Mostly Cloudy

56°F

13°C

Humidity 70%
Wind Speed NW 5 mph
Barometer 30.11 in (1019.4 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 20 May 12:53 am EDT
Extended Forecast for

Allegan MI

  • Overnight

    Overnight: Partly cloudy, with a low around 48. Northwest wind around 7 mph, with gusts as high as 18 mph.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 66. North wind around 9 mph.

    High: 66 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. North wind around 9 mph becoming east northeast after midnight. Winds could gust as high as 21 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 68. East wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 68 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 46. East northeast wind around 8 mph, with gusts as high as 22 mph.

    Low: 46 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers after 2pm.  Mostly cloudy, with a high near 70.

    High: 70 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers, with thunderstorms also possible after 2am.  Low around 52. Chance of precipitation is 80%.

    Low: 52 °F

    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm.  Mostly cloudy, with a high near 72.

    High: 72 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 48. Northwest wind around 7 mph, with gusts as high as 18 mph.
Wednesday
Partly sunny, with a high near 66. North wind around 9 mph.
Wednesday Night
Partly cloudy, with a low around 42. North wind around 9 mph becoming east northeast after midnight. Winds could gust as high as 21 mph.
Thursday
Increasing clouds, with a high near 68. East wind 6 to 9 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 46. East northeast wind around 8 mph, with gusts as high as 22 mph.
Friday
A 40 percent chance of showers after 2pm. Mostly cloudy, with a high near 70.
Friday Night
Showers, with thunderstorms also possible after 2am. Low around 52. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm. Mostly cloudy, with a high near 72.
Saturday Night
Mostly cloudy, with a low around 53.
Sunday
Mostly cloudy, with a high near 74.
Sunday Night
Mostly cloudy, with a low around 54.
Memorial Day
Partly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Partly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Allegan MI
 42.54°N 85.86°W (Elev. 623 ft)
2:21 am EDT May 20, 2026
2am EDT May 20, 2026-6pm EDT May 26, 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