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

Extreme Heat and Tropical Storm Bertha Impacts

Dangerous heat will expand from the Gulf Coast into the Southern Plains and Desert Southwest through week's end. Additional extreme heat impacting the Pacific Northwest will shift to the northern Plains by the weekend. Tropical Storm Bertha is expected to continue to impact portions of the northwestern Gulf Coast from south central Louisiana to the upper Texas coast today. Read More >

Current conditions at

Burlington Municipal Airport (KBUU)

Lat: 42.69°NLon: 88.31°WElev: 778ft.

Fair

49°F

9°C

Humidity 92%
Wind Speed Calm
Barometer 30.21 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 23 Jul 6:15 am CDT
Extended Forecast for

Delavan WI

  • Today

    Today: Sunny, with a high near 77. Calm wind becoming west around 5 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. Southwest wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80. Light south wind increasing to 5 to 10 mph in the morning.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. South wind 5 to 10 mph.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 84. South wind 5 to 10 mph.

    High: 84 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 91. Calm wind becoming southwest around 5 mph in the morning.

    High: 91 °F

    Hot

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Southwest wind 5 to 10 mph.

    Low: 71 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 20%.

    High: 92 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 77. Calm wind becoming west around 5 mph.
Tonight
Mostly cloudy, with a low around 57. Southwest wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 80. Light south wind increasing to 5 to 10 mph in the morning.
Friday Night
Partly cloudy, with a low around 58. South wind 5 to 10 mph.
Saturday
Partly sunny, with a high near 84. South wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny and hot, with a high near 91. Calm wind becoming southwest around 5 mph in the morning.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Southwest wind 5 to 10 mph.
Monday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 20%.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Delavan WI
 42.63°N 88.65°W (Elev. 896 ft)
Last Update:
5:03 am CDT Jul 23, 2026
Forecast Valid:
6am CDT Jul 23, 2026-6pm CDT Jul 29, 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