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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Milwaukee, General Mitchell International Airport (KMKE)

Lat: 42.96°NLon: 87.9°WElev: 722ft.

Overcast

65°F

18°C

Humidity 78%
Wind Speed E 13 mph
Barometer 30.16 in (1021.2 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 18 Sep 6:52 pm CDT
Extended Forecast for

Whitefish Bay WI

Flood Watch September 19, 01:00am until September 19, 01:00pm
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: Showers likely, then showers and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Low around 59. East wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 59 °F

    Heavy Rain

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 3pm, then showers likely and possibly a thunderstorm after 3pm. Some of the storms could produce heavy rainfall. High near 70. Southeast wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 70 °F

    Heavy Rain
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 58. Northeast wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Showers
    Likely

  • Sunday

    Sunday: A 50 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 67. Windy, with a northeast wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 67 °F

    Chance
    Showers and
    Windy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 53. Breezy, with a northeast wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 53 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 64. Breezy, with an east wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 64 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 52. East wind 10 to 15 mph.

    Low: 52 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 62. Northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 62 °F

    Slight Chance
    Showers

  • Tuesday Night

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

    Low: 53 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers likely, then showers and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Low around 59. East wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Saturday
Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 3pm, then showers likely and possibly a thunderstorm after 3pm. Some of the storms could produce heavy rainfall. High near 70. Southeast wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 58. Northeast wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A 50 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 67. Windy, with a northeast wind 15 to 25 mph, with gusts as high as 35 mph.
Sunday Night
Mostly cloudy, with a low around 53. Breezy, with a northeast wind 10 to 20 mph, with gusts as high as 30 mph.
Monday
Mostly cloudy, with a high near 64. Breezy, with an east wind 15 to 20 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 52. East wind 10 to 15 mph.
Tuesday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 62. Northeast wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 53.
Wednesday
Partly sunny, with a high near 64.
Wednesday Night
Mostly cloudy, with a low around 53.
Thursday
Partly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Whitefish Bay WI
 43.13°N 87.91°W (Elev. 673 ft)
Last Update:
6:16 pm CDT Sep 18, 2026
Forecast Valid:
7pm CDT Sep 18, 2026-6pm CDT Sep 25, 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