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

66°F

19°C

Humidity 46%
Wind Speed S 9 G 17 mph
Barometer 29.68 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 21 Mar 6:55 pm EDT
Extended Forecast for

4 Miles N Decatur MI

  • Tonight

    Tonight: Partly cloudy, with a low around 48. West wind 7 to 10 mph, with gusts as high as 22 mph.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers, mainly between 11am and 4pm.  Mostly cloudy, with a high near 56. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 56 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 31. North wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 31 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 43. Northwest wind 6 to 9 mph, with gusts as high as 18 mph.

    High: 43 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 27. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 48. West wind 7 to 10 mph, with gusts as high as 22 mph.
Sunday
A 40 percent chance of showers, mainly between 11am and 4pm. Mostly cloudy, with a high near 56. North wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 31. North wind 8 to 10 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 43. Northwest wind 6 to 9 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 27. North northwest wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 55.
Wednesday Night
Mostly cloudy, with a low around 44.
Thursday
A chance of showers. Partly sunny, with a high near 61.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 30.
Friday
Partly sunny, with a high near 44.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Decatur MI
 42.17°N 85.98°W (Elev. 758 ft)
7:03 pm EDT Mar 21, 2026
7pm EDT Mar 21, 2026-6pm EDT Mar 28, 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