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

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

Light Rain Fog/Mist

63°F

17°C

Humidity 100%
Wind Speed N 8 mph
Barometer 29.96 in (1014.4 mb)
Dewpoint 63°F (17°C)
Visibility 5.00 mi
Last update 19 Sep 9:53 pm CDT
Extended Forecast for

Madison WI

Flood Watch September 20, 12:00am until September 20, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 20, 12:00am until September 20, 07:00am

    NOW until 7:00am Sun

    Flood Watch

  • Overnight

    Low: 60 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: A 30 percent chance of showers, mainly before 7am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 68. Breezy, with a northeast wind 15 to 20 mph.

    High: 68 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 53. Breezy, with a northeast wind 15 to 20 mph.

    Low: 53 °F

    Mostly Cloudy
    and Breezy

  • Monday

    Monday: A 30 percent chance of showers, mainly between 2pm and 5pm. Mostly cloudy, with a high near 63. Northeast wind around 15 mph.

    High: 63 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 49. Northeast wind 10 to 15 mph.

    Low: 49 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 62. Northeast wind 10 to 15 mph.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. Northeast wind around 10 mph.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66. Northeast wind around 10 mph.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

Overnight
Showers likely. Patchy fog. Otherwise, cloudy, with a low around 60. Northeast wind 10 to 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A 30 percent chance of showers, mainly before 7am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 68. Breezy, with a northeast wind 15 to 20 mph.
Sunday Night
Mostly cloudy, with a low around 53. Breezy, with a northeast wind 15 to 20 mph.
Monday
A 30 percent chance of showers, mainly between 2pm and 5pm. Mostly cloudy, with a high near 63. Northeast wind around 15 mph.
Monday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 49. Northeast wind 10 to 15 mph.
Tuesday
Partly sunny, with a high near 62. Northeast wind 10 to 15 mph.
Tuesday Night
Mostly clear, with a low around 46. Northeast wind around 10 mph.
Wednesday
Mostly sunny, with a high near 66. Northeast wind around 10 mph.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
Partly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Madison WI
 43.07°N 89.4°W (Elev. 879 ft)
Last Update:
11:16 pm CDT Sep 19, 2026
Forecast Valid:
12am CDT Sep 20, 2026-6pm CDT Sep 26, 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