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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

South Haven, South Haven Area Regional Airport (KLWA)

Lat: 42.35°NLon: 86.26°WElev: 666ft.

Fair

45°F

7°C

Humidity 76%
Wind Speed N 7 mph
Barometer 29.70 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 22 Mar 11:55 am EDT
Extended Forecast for

South Haven MI

  • Today

    Today: A 40 percent chance of rain, mainly after 1pm. Cloudy, with a high near 49. North wind 16 to 18 mph.

    High: 49 °F

    Chance Rain

  • Tonight

    Tonight: A 30 percent chance of rain, mainly before 7pm. Mostly cloudy, with a low around 29. Blustery, with a north wind 17 to 20 mph.

    Low: 29 °F

    Blustery.
    Chance Rain
    then Mostly
    Cloudy

  • Monday

    Monday: A chance of flurries before 2pm. Mostly sunny, with a high near 38. North northwest wind around 16 mph.

    High: 38 °F

    Chance
    Flurries

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29. North wind 5 to 9 mph becoming calm.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 48. South southwest wind 8 to 10 mph.

    High: 48 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance
    Showers

Detailed Forecast

Today
A 40 percent chance of rain, mainly after 1pm. Cloudy, with a high near 49. North wind 16 to 18 mph.
Tonight
A 30 percent chance of rain, mainly before 7pm. Mostly cloudy, with a low around 29. Blustery, with a north wind 17 to 20 mph.
Monday
A chance of flurries before 2pm. Mostly sunny, with a high near 38. North northwest wind around 16 mph.
Monday Night
Partly cloudy, with a low around 29. North wind 5 to 9 mph becoming calm.
Tuesday
Partly sunny, with a high near 48. South southwest wind 8 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Mostly cloudy, with a high near 52.
Wednesday Night
Mostly cloudy, with a low around 42.
Thursday
A chance of showers. Mostly cloudy, with a high near 56.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
Partly sunny, with a high near 39.
Friday Night
Mostly clear, with a low around 28.
Saturday
Sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Haven MI
 42.41°N 86.28°W (Elev. 597 ft)
Last Update:
11:03 am EDT Mar 22, 2026
Forecast Valid:
11am EDT Mar 22, 2026-6pm EDT Mar 28, 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