Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

Mostly Cloudy

79°F

26°C

Humidity 41%
Wind Speed S 12 mph
Barometer 30.07 in (1017.8 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 24 Jul 3:53 pm CDT
Extended Forecast for

Monona WI

  • Tonight

    Tonight: Mostly clear, with a low around 61. South wind 5 to 10 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 86. Southwest wind 5 to 10 mph.

    High: 86 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 70. Southwest wind around 5 mph.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm.  Partly sunny and hot, with a high near 91. Heat index values as high as 98. Southwest wind 5 to 10 mph.

    High: 91 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 73. Southwest wind 5 to 10 mph.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny and hot, with a high near 92. Southwest wind 5 to 10 mph becoming northwest in the afternoon.

    High: 92 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 69. North wind 5 to 10 mph.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 90. North wind around 5 mph.

    High: 90 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 61. South wind 5 to 10 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 86. Southwest wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 70. Southwest wind around 5 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny and hot, with a high near 91. Heat index values as high as 98. Southwest wind 5 to 10 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 73. Southwest wind 5 to 10 mph.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny and hot, with a high near 92. Southwest wind 5 to 10 mph becoming northwest in the afternoon.
Monday Night
Mostly clear, with a low around 69. North wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 90. North wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Monona WI
 43.07°N 89.34°W (Elev. 850 ft)
2:42 pm CDT Jul 24, 2026
4pm CDT Jul 24, 2026-6pm CDT Jul 31, 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