Weather Alert
Delavan Weather Warning NWS WEATHER ALERT FOR THE DELAVAN, WI AREA - FLOOD WATCH Issued: 337 AM CDT Sun Sep 20 2026 Delavan Weather Warning

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Delavan, WI Weather Forecast

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Delavan, WI Weather Forecast

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Delavan WI weather - Overcast - 62°F
Overcast
62°F
Updated 6:52 am
Feels Like 52°F
Humidity 95%
Wind N 6 mph
Barometer  30 in
Dew Point 60°F
Delavan WI weather - Overcast - 16°C
Overcast
16°C
Updated 6:52 am
Feels Like 11°C
Humidity 95%
Wind N 10 km/h
Barometer  101.6 kPa
Dew Point 16°C
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Delavan Weather Forecast

EARLY THIS MORNING TODAY TONIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY
Delavan, WI Weather - Early This Morning Chance Of T-Storm Delavan, WI Weather - Today Chance Of T-Storm Delavan, WI Weather - Tonight Mostly Cloudy Delavan, WI Weather - Monday Chance Of Showers Delavan, WI Weather - Monday Night Chance Of Showers Delavan, WI Weather - Tuesday Partly Sunny Delavan, WI Weather - Tuesday Night Partly Cloudy Delavan, WI Weather - Wednesday Partly Sunny Delavan, WI Weather - Wednesday Night Mostly Clear Delavan, WI Weather - Thursday Partly Sunny Delavan, WI Weather - Thursday Night Partly Cloudy Delavan, WI Weather - Friday Partly Sunny
Chance of T-Storm Chance of T-Storm Mostly Cloudy Chance of Showers Chance of Showers Partly Sunny Partly Cloudy Partly Sunny Mostly Clear Partly Sunny Partly Cloudy Partly Sunny
Hi: 61°FHi: 16°C
 Lo: 55°FLo: 13°C Hi: 61°FHi: 16°C
 Lo: 50°FLo: 10°C Hi: 61°FHi: 16°C
 Lo: 49°FLo: 9°C Hi: 61°FHi: 16°C
 Lo: 49°FLo: 9°C Hi: 65°FHi: 18°C
 Lo: 49°FLo: 9°C Hi: 65°FHi: 18°C
POP: 100% POP: 60% POP: 30% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 430 AM CDT Sun Sep 20 2026 Delavan, WI Weather - WeatherWorld.com

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Issued: 645 AM CDT Sun Sep 20 2026

Key Messages

  • Flood Watch will be allowed to expire at 7 AM CDT for the southern half of the forecast area. Moderate to heavy rain should continue to slowly taper off into this morning, pushing south of the area by midday to early afternoon.
  • Prolonged period of high swimming risk conditions continues into Tuesday at all Lake Michigan beaches, and may need to be extended into Wednesday evening.

Aviation

... Issued 646 AM CDT Sun Sep 20 2026

The lingering moderate to sometimes heavy rainfall over Madis...